/* roulang page: index */
:root{
  --primary:#FF6A2B;
  --primary-dark:#E24E12;
  --accent:#00BFA5;
  --ink:#16141C;
  --bg:#F8F6F2;
  --card:#FFFFFF;
  --line:#E8E4DC;
  --text:#22202A;
  --muted:#6B6873;
  --invert:#F5F3F7;
  --invert-muted:#C9C5CF;
  --success:#17916B;
  --warn:#D9481E;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(22,20,28,.06),0 8px 24px rgba(22,20,28,.06);
  --sh-2:0 12px 32px rgba(22,20,28,.12);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:.01em;
  color:var(--text);background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-dark)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:rgba(255,106,43,.22)}

/* ---------- Foundation 覆盖 ---------- */
body,p,h1,h2,h3,h4,h5,h6,li,td,th,label{font-family:inherit}
a{color:var(--primary)}
a:hover{color:var(--primary-dark)}
.grid-x{display:flex;flex-wrap:wrap;gap:var(--gap);align-items:stretch;margin:0}
.grid-x>.cell{flex:0 0 auto;width:100%;min-width:0;margin:0}
.grid-x>.cell>*:last-child{margin-bottom:0}
.accordion,.accordion-item,.accordion-title,.accordion-content{all:unset}
.off-canvas{background:var(--card)}

/* ---------- 容器与板块 ---------- */
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1440px){.container{max-width:1280px}}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-dark{background:var(--ink);color:var(--invert)}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-title{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;letter-spacing:.02em;position:relative;padding-top:20px}
.sec-title::before{content:"";position:absolute;left:0;top:0;width:32px;height:4px;border-radius:2px;background:var(--primary)}
.sec-sub{margin-top:14px;font-size:17px;color:var(--muted);line-height:1.75}
.section-dark .sec-sub{color:var(--invert-muted)}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-sm);
  font-size:15.5px;font-weight:600;letter-spacing:.01em;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease,opacity .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(255,106,43,.26)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(226,78,18,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:var(--invert);transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--sh-1)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary-dark);transform:translateY(-2px)}
.btn-light{background:transparent;color:var(--invert);border-color:rgba(245,243,247,.5)}
.btn-light:hover{background:var(--invert);color:var(--ink);border-color:var(--invert)}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none!important;box-shadow:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--primary);
}
.link-arrow svg{transition:transform .2s ease}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 徽章与标签 ---------- */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.badge-accent{background:rgba(0,191,165,.12);color:#018a78}
.badge-ink{background:rgba(22,20,28,.08);color:var(--ink)}
.tag-pill{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.7);
  font-size:14px;color:#4c4954;
}
.sec-stamp{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:6px;
  background:rgba(0,191,165,.1);color:#018a78;font-size:12.5px;font-weight:600;letter-spacing:.06em;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(248,246,242,.94);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{background:var(--bg);box-shadow:0 8px 24px rgba(22,20,28,.08)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:70px}
.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--primary);
  position:relative;overflow:hidden;flex:0 0 auto;
}
.brand-mark::before{
  content:"";position:absolute;left:50%;top:50%;width:17px;height:17px;
  transform:translate(-50%,-50%);background:#fff;
  clip-path:polygon(0 0,100% 0,100% 60%,60% 100%,0 100%);
}
.brand-mark::after{
  content:"";position:absolute;right:-12px;bottom:-12px;width:26px;height:26px;
  background:rgba(22,20,28,.22);transform:rotate(45deg);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-top{font-size:16.5px;font-weight:700;color:var(--ink);letter-spacing:.02em}
.brand-bottom{font-size:11.5px;font-weight:600;color:var(--primary);letter-spacing:.16em}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{
  position:relative;padding:10px 12px;font-size:15px;font-weight:500;color:var(--text);border-radius:8px;
  transition:color .2s ease,background .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-links a:hover{color:var(--primary-dark)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--primary);font-weight:700}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink);cursor:pointer;
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
.nav-cta{height:42px;padding:0 20px;font-size:15px}
.burger{display:none}

/* ---------- 移动抽屉 ---------- */
.off-canvas.position-right{
  width:308px;background:var(--card);transform:translateX(308px);
  transition:transform .3s ease;z-index:120;
  box-shadow:-14px 0 40px rgba(22,20,28,.14);
  display:flex;flex-direction:column;
}
.off-canvas.position-right.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:20px 20px 16px;border-bottom:1px solid var(--line)}
.drawer-body{padding:14px 12px 26px;overflow-y:auto}
.drawer-body a{
  display:block;padding:13px 14px;border-radius:var(--r-sm);font-size:15.5px;font-weight:500;color:var(--text);
}
.drawer-body a:hover{background:rgba(255,106,43,.08);color:var(--primary-dark)}
.drawer-body a.is-active{background:rgba(255,106,43,.1);color:var(--primary);font-weight:700}
.drawer-foot{padding:16px 20px 26px;border-top:1px solid var(--line)}
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(22,20,28,.45);z-index:110;opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 88px;background:var(--bg)}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(22,20,28,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(22,20,28,.045) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(circle at 20% 20%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 20% 20%,#000 0%,transparent 72%);
}
.hero-grid{position:relative;z-index:2}
.hero-copy{padding-right:12px}
.hero h1{
  font-size:clamp(30px,4vw,48px);line-height:1.25;font-weight:700;letter-spacing:.02em;color:var(--ink);
}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{margin-top:20px;font-size:clamp(17px,1.5vw,19px);line-height:1.75;color:var(--muted);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.hero-media{position:relative}
.hero-media .media{height:100%;min-height:340px;border-radius:var(--r-lg)}
.hero-media .media img{width:100%;height:100%;object-fit:cover;min-height:340px}
.hero-slash{
  position:absolute;right:-10px;bottom:-26px;width:26%;height:110px;background:var(--primary);
  clip-path:polygon(16% 0,100% 0,84% 100%,0 100%);z-index:3;
}
.hero-badge{
  position:absolute;left:-16px;bottom:34px;z-index:4;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);padding:14px 18px;box-shadow:var(--sh-2);max-width:230px;
}
.hero-badge strong{display:block;font-size:22px;color:var(--primary);font-variant-numeric:tabular-nums}
.hero-badge span{font-size:13.5px;color:var(--muted)}

/* ---------- 媒体位与降级 ---------- */
.media{position:relative;overflow:hidden;border-radius:var(--r-md);background:#EDE8E1}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.media.is-fallback::after{
  content:attr(data-initial);position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:var(--primary);color:#fff;font-size:38px;font-weight:700;letter-spacing:.06em;
}
.ratio-16x9{aspect-ratio:16/9}
.ratio-4x3{aspect-ratio:4/3}

/* ---------- 服务 / 功能 ---------- */
.feature-main{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  padding:28px;display:flex;flex-direction:column;gap:20px;height:100%;
  transition:transform .25s ease,box-shadow .25s ease;
}
.feature-main:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.feature-main .media{height:220px}
.feature-main h3{font-size:22px;line-height:1.4;font-weight:600}
.feature-main p{color:var(--muted);font-size:15.5px}
.feature-mini{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  padding:24px 22px;height:100%;display:flex;flex-direction:column;gap:12px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.feature-mini:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(255,106,43,.4)}
.feature-num{
  width:38px;height:38px;border-radius:50%;border:1.5px solid rgba(255,106,43,.45);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;
}
.feature-mini h3{font-size:19px;line-height:1.4;font-weight:600}
.feature-mini p{font-size:15px;color:var(--muted);line-height:1.75}
.feature-note{
  background:linear-gradient(180deg,rgba(0,191,165,.08),rgba(0,191,165,.03));
  border:1px solid rgba(0,191,165,.28);border-radius:var(--r-lg);
  padding:26px 28px;display:flex;flex-direction:column;justify-content:center;gap:14px;height:100%;
}
.feature-note h3{font-size:19px;font-weight:600}
.feature-note p{font-size:15px;color:#4c4954}

/* ---------- 数据区 ---------- */
.stats{position:relative;overflow:hidden}
.stats::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(245,243,247,.14) 1px,transparent 1px);
  background-size:22px 22px;
  -webkit-mask-image:linear-gradient(90deg,#000,transparent);mask-image:linear-gradient(90deg,#000,transparent);
}
.stats-grid{position:relative;z-index:2;margin-top:8px}
.stat-cell{padding:6px 0;position:relative}
.stat-cell+.stat-cell::before{
  content:"";position:absolute;left:-12px;top:8px;bottom:8px;width:1px;background:rgba(245,243,247,.16);
}
.stat-num{
  font-size:clamp(36px,4.2vw,54px);line-height:1;font-weight:700;
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.stat-num small{font-size:16px;font-weight:600;margin-left:6px;letter-spacing:.02em}
.stat-cell:nth-child(odd) .stat-num{color:var(--primary)}
.stat-cell:nth-child(even) .stat-num{color:var(--accent)}
.stat-label{margin-top:14px;font-size:14px;color:var(--invert-muted);line-height:1.7}

/* ---------- 场景 / 案例 ---------- */
.scene-col{display:flex;flex-direction:column;gap:var(--gap)}
.scene-col.offset{padding-top:52px}
.scene-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  overflow:hidden;display:block;color:var(--text);
  transition:transform .25s ease,box-shadow .25s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);color:var(--text)}
.scene-card .media{border-radius:0}
.scene-card .media img{transition:transform .45s ease}
.scene-card:hover .media img{transform:scale(1.03)}
.scene-body{padding:22px 24px 24px}
.scene-body h3{margin-top:12px;font-size:19.5px;line-height:1.42;font-weight:600;transition:color .2s ease}
.scene-card:hover h3{color:var(--primary)}
.scene-body p{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.75}
.scene-body .link-arrow{margin-top:16px}

/* ---------- 流程 ---------- */
.steps{position:relative;margin-top:12px}
.step{position:relative;padding-top:6px}
.step-num{
  width:52px;height:52px;border-radius:50%;background:#fff;border:1.5px solid rgba(255,106,43,.4);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;position:relative;z-index:2;
}
.step-line{
  position:absolute;left:70px;top:31px;right:-24px;height:1px;background:var(--line);z-index:1;
}
.step h3{margin-top:20px;font-size:19px;font-weight:600;line-height:1.42}
.step p{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.75}

/* ---------- 最新信息 ---------- */
.news-list{margin-top:4px}
.news-card{
  display:flex;flex-direction:column;height:100%;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;color:var(--text);
  transition:transform .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);color:var(--text)}
.news-media{border-radius:0}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.news-title{
  font-size:18px;line-height:1.45;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.news-card:hover .news-title{color:var(--primary)}
.news-desc{
  font-size:14.5px;color:var(--muted);line-height:1.72;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);
}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:#c8c3ba}
.news-empty{
  border:1px dashed var(--line);border-radius:var(--r-lg);padding:56px 24px;text-align:center;background:rgba(255,255,255,.6);
}
.news-empty svg{width:40px;height:40px;color:var(--accent);margin:0 auto 16px;display:block}
.news-empty p{font-size:15.5px;color:var(--muted)}
.news-empty a{margin-top:10px;display:inline-block;font-weight:600}
.news-more{margin-top:36px;text-align:center}

/* ---------- FAQ ---------- */
.faq-wrap{margin-top:8px}
.faq-item{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);margin-bottom:14px;overflow:hidden;
}
.faq-item.is-open::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary)}
.faq-q{
  width:100%;background:none;border:0;cursor:pointer;text-align:left;
  min-height:62px;padding:14px 22px;display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:17px;font-weight:600;color:var(--text);transition:color .2s ease;
}
.faq-q:hover{color:var(--primary-dark)}
.faq-item.is-open .faq-q{color:var(--primary)}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--muted);
  transition:transform .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:rgba(255,106,43,.1);border-color:rgba(255,106,43,.35);color:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a-inner{padding:0 58px 22px 22px;font-size:15.5px;line-height:1.8;color:#4c4954}

/* ---------- 联系 ---------- */
.contact-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  padding:32px;
}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:14px;font-weight:600;color:#4c4954;margin-bottom:8px}
.form-control{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#FDFCFA;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
textarea.form-control{height:auto;min-height:130px;padding:12px 14px;line-height:1.75;resize:vertical}
.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(255,106,43,.12)}
.form-control.has-error{border-color:var(--warn);box-shadow:0 0 0 4px rgba(217,72,30,.12)}
.form-hint{font-size:12.5px;color:var(--warn);margin-top:6px;display:none}
.form-hint.is-show{display:block}
.form-privacy{margin-top:16px;font-size:13px;color:var(--muted);line-height:1.7}
.form-alert{
  display:none;margin-bottom:18px;padding:12px 16px;border-radius:var(--r-sm);
  background:rgba(23,145,107,.1);border:1px solid rgba(23,145,107,.3);color:#0f6a4f;font-size:14.5px;
}
.form-alert.is-show{display:block}
.info-list{display:flex;flex-direction:column;gap:16px;margin-top:18px}
.info-item{display:flex;gap:14px;align-items:flex-start}
.info-ic{
  flex:0 0 auto;width:42px;height:42px;border-radius:var(--r-sm);
  background:rgba(0,191,165,.1);color:#018a78;
  display:inline-flex;align-items:center;justify-content:center;
}
.info-item strong{display:block;font-size:15px;font-weight:600;margin-bottom:2px}
.info-item span{font-size:14px;color:var(--muted);line-height:1.65}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  background:var(--ink);border-radius:var(--r-lg);padding:44px 40px;color:var(--invert);
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-40px;width:200px;height:200px;
  background:rgba(255,106,43,.16);transform:rotate(45deg);border-radius:32px;
}
.cta-band h2{font-size:clamp(21px,2.2vw,27px);line-height:1.4;font-weight:700;position:relative;z-index:2}
.cta-band p{margin-top:8px;font-size:15px;color:var(--invert-muted);position:relative;z-index:2;max-width:620px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--invert-muted);padding:72px 0 0}
.footer-grid{margin-bottom:48px}
.footer-brand .brand-top{color:var(--invert)}
.footer-brand .brand-bottom{color:var(--primary)}
.footer-desc{margin-top:18px;font-size:14.5px;line-height:1.8;color:var(--invert-muted);max-width:280px}
.footer-mail{margin-top:16px;display:inline-flex;align-items:center;gap:8px;font-size:14.5px;color:var(--invert)}
.footer-mail:hover{color:var(--primary)}
.footer-title{font-size:15px;font-weight:600;color:var(--invert);margin-bottom:18px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:var(--invert-muted);display:inline-block;transition:color .2s ease,transform .2s ease}
.footer-links a:hover{color:var(--primary);transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid rgba(245,243,247,.12);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(201,197,207,.8);
}
.footer-bottom a{color:rgba(201,197,207,.8)}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- 底部 Tab ---------- */
.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:80;
  background:rgba(255,255,255,.97);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -6px 20px rgba(22,20,28,.06);
}
.tabbar .tab-inner{display:flex;align-items:stretch;height:60px}
.tab-item{
  flex:1 1 0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10.5px;color:var(--muted);text-decoration:none;
}
.tab-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tab-item.is-active{color:var(--primary);font-weight:600}
.tab-item.is-active svg{stroke:var(--primary)}

/* ---------- 断点 ---------- */
@media (min-width:641px) and (max-width:1024px){
  .grid-x>.cell.medium-5{width:calc(41.6667% - 14px)}
  .grid-x>.cell.medium-6{width:calc(50% - 12px)}
  .grid-x>.cell.medium-4{width:calc(33.3333% - 16px)}
  .grid-x>.cell.medium-12{width:100%}
}
@media (min-width:1025px){
  .grid-x>.cell.large-3{width:calc(25% - 18px)}
  .grid-x>.cell.large-4{width:calc(33.3333% - 16px)}
  .grid-x>.cell.large-5{width:calc(41.6667% - 14px)}
  .grid-x>.cell.large-6{width:calc(50% - 12px)}
  .grid-x>.cell.large-7{width:calc(58.3333% - 14px)}
  .grid-x>.cell.large-8{width:calc(66.6667% - 8px)}
  .grid-x>.cell.large-12{width:100%}
  .hero-grid>.cell.large-7{width:calc(58.3333% - 16px)}
  .hero-grid>.cell.large-5{width:calc(41.6667% - 16px)}
}
@media (max-width:1024px){
  .nav-links,.nav-cta{display:none}
  .burger{display:inline-flex}
  .section{padding:72px 0}
  .hero{padding:56px 0 64px}
  .hero-media{margin-top:8px}
  .scene-col.offset{padding-top:0}
  .step-line{display:none}
  .steps{display:flex;flex-direction:column;gap:0}
  .step{
    position:relative;padding:0 0 30px 34px;border-left:1px solid var(--line);margin-left:12px;
  }
  .step:last-child{border-left-color:transparent;padding-bottom:0}
  .step-num{
    position:absolute;left:-13px;top:0;width:26px;height:26px;font-size:12px;border-width:1.5px;
    background:var(--bg);
  }
  .step h3{margin-top:2px}
  .stat-cell+.stat-cell::before{display:none}
  .stat-cell{border-top:1px solid rgba(245,243,247,.14);padding-top:22px;margin-top:6px}
  .stat-cell:nth-child(odd),.stat-cell:nth-child(even){border-top-color:rgba(245,243,247,.14)}
  .contact-panel{padding:26px}
  .cta-band{padding:34px 28px}
}
@media (max-width:640px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .sec-head{margin-bottom:32px}
  .hero{padding:44px 0 56px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-slash{width:34%;height:78px;bottom:-18px}
  .hero-badge{left:auto;right:8px;bottom:-14px;padding:11px 14px;max-width:180px}
  .hero-badge strong{font-size:18px}
  .feature-main{padding:22px}
  .feature-main .media{height:180px}
  .tabbar{display:block}
  .site-footer{padding-bottom:calc(60px + env(safe-area-inset-bottom) + 20px)}
  .news-more .btn{width:100%}
  .faq-a-inner{padding-right:26px}
  .faq-q{font-size:16px}
  .cta-band{padding:28px 22px}
  .cta-band .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --brand:#FF6A2B;
  --brand-deep:#E24E12;
  --accent:#00BFA5;
  --ink:#16141C;
  --bg:#F8F6F2;
  --card:#FFFFFF;
  --line:#E8E4DC;
  --text:#22202A;
  --muted:#6B6873;
  --inv:#F5F3F7;
  --inv-muted:#C9C5CF;
  --ok:#17916B;
  --warn:#D9481E;
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:10px;
  --shadow-1:0 1px 2px rgba(22,20,28,.06),0 8px 24px rgba(22,20,28,.06);
  --shadow-2:0 12px 32px rgba(22,20,28,.12);
  --sp:24px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
figure{margin:0}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media(min-width:1025px){.container{padding:0 24px}}
@media(min-width:1440px){.container{max-width:1280px}}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-xs);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(255,106,43,.24)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 10px 24px rgba(226,78,18,.28)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--inv);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-deep)}
.link-more svg{transition:transform .2s ease}
.link-more:hover svg{transform:translateX(3px)}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(0,191,165,.12);color:#00806E;
}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:8px;
  border:1px solid var(--line);background:#fff;color:var(--muted);font-size:13px;
  transition:border-color .2s ease,color .2s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand-deep)}

.section{padding:88px 0}
@media(max-width:1024px){.section{padding:72px 0}}
@media(max-width:640px){.section{padding:58px 0}}

.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.sec-title{position:relative;font-size:32px;line-height:1.3;font-weight:700;letter-spacing:.02em;padding-left:18px}
.sec-title::before{content:"";position:absolute;left:0;top:.24em;width:4px;height:.72em;background:var(--brand);border-radius:2px}
.sec-sub{margin-top:10px;font-size:15px;color:var(--muted)}
@media(max-width:640px){.sec-title{font-size:26px}}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(248,246,242,.94);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{background:#F8F6F2;box-shadow:0 6px 22px rgba(22,20,28,.08)}
.header-inner{display:flex;align-items:center;gap:18px;height:70px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{position:relative;width:36px;height:36px;border-radius:11px;background:var(--brand);flex:0 0 auto;overflow:hidden}
.brand-mark::after{content:"";position:absolute;left:9px;top:9px;width:18px;height:18px;background:#fff;opacity:.94;clip-path:polygon(0 0,100% 0,100% 60%,60% 100%,0 100%)}
.brand-text{display:flex;flex-direction:column;line-height:1.06}
.brand-top{font-size:16px;font-weight:700;letter-spacing:.08em;color:var(--ink)}
.brand-bottom{font-size:11.5px;font-weight:600;letter-spacing:.2em;color:var(--muted)}

.nav-links{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-links a{position:relative;padding:8px 12px;font-size:15px;color:#3B3944;border-radius:8px;transition:color .2s ease,background .2s ease}
.nav-links a:hover{color:var(--brand);background:rgba(255,106,43,.07)}
.nav-links a.is-active{color:var(--brand);font-weight:700}
.nav-links a.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}

.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:var(--radius-xs);
  border:1px solid var(--line);background:#fff;color:var(--muted);
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-1px)}
.drawer-trigger{display:none}

@media(max-width:1024px){
  .nav-links{display:none}
  .drawer-trigger{display:inline-flex}
  .header-cta{display:none}
}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;top:0;right:0;z-index:220;
  width:306px;max-width:86vw;height:100%;
  background:#fff;padding:22px 20px 32px;
  transform:translateX(103%);transition:transform .3s ease;
  overflow-y:auto;box-shadow:-14px 0 40px rgba(22,20,28,.18);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-title{font-size:15px;font-weight:700;color:var(--ink)}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:20px}
.drawer-links a{padding:11px 12px;border-radius:10px;font-size:15px;color:#3B3944;background:#FAF8F4}
.drawer-links a.is-active{color:var(--brand);font-weight:700;background:rgba(255,106,43,.09)}
.drawer-links a:hover{color:var(--brand)}
.drawer-note{font-size:13px;line-height:1.7;color:var(--muted);border-top:1px solid var(--line);padding-top:16px}
.drawer-mask{position:fixed;inset:0;z-index:210;background:rgba(22,20,28,.5);opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* 移动底部 Tab */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:130;
  display:none;align-items:stretch;
  height:60px;background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -6px 20px rgba(22,20,28,.06);
}
.tabbar a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10.5px;letter-spacing:.02em;color:var(--muted);
}
.tabbar a svg{width:22px;height:22px}
.tabbar a.is-active{color:var(--brand);font-weight:700}
.tabbar a.is-active svg{stroke:var(--brand)}
@media(max-width:640px){
  .tabbar{display:flex}
  body{padding-bottom:calc(60px + env(safe-area-inset-bottom))}
}

/* ============ 面包屑 ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--line)}
.crumb .current{color:#3B3944;font-weight:600}

/* ============ 文章布局 ============ */
.article-area{padding:40px 0 88px}
@media(max-width:1024px){.article-area{padding:32px 0 72px}}
@media(max-width:640px){.article-area{padding:24px 0 56px}}

.article-layout{display:flex;flex-wrap:wrap;gap:32px}
.article-main{flex:1 1 700px;min-width:0;max-width:820px}
.article-side{flex:0 0 300px;width:300px}
@media(max-width:1024px){
  .article-main{flex:1 1 100%;max-width:100%}
  .article-side{flex:1 1 100%;width:100%}
}
@media(min-width:1025px){
  .article-side{position:sticky;top:94px;align-self:flex-start}
}

.article-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);padding:36px 40px 32px}
@media(max-width:640px){.article-card{padding:24px 18px;border-radius:14px}}

.article-head{margin-bottom:22px}
.article-head h1{font-size:clamp(26px,2.8vw,38px);line-height:1.32;font-weight:700;letter-spacing:.02em;color:var(--ink)}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--muted)}
.article-meta .dot{width:1px;height:12px;background:var(--line)}

.article-cover{margin:22px 0 30px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.article-cover img{width:100%;aspect-ratio:16/8;object-fit:cover;background:#EFEBE4}
.cover-fallback{
  width:100%;aspect-ratio:16/8;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#FF6A2B,#E24E12);color:#fff;font-size:34px;font-weight:700;letter-spacing:.1em;
}

/* 正文排版 */
.article-body{font-size:16.5px;line-height:1.9;color:var(--text);overflow-wrap:break-word}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{position:relative;font-size:23px;line-height:1.4;font-weight:700;color:var(--ink);margin:38px 0 16px;padding-left:16px;letter-spacing:.02em}
.article-body h2::before{content:"";position:absolute;left:0;top:.3em;width:4px;height:.82em;background:var(--brand);border-radius:2px}
.article-body h3{position:relative;font-size:19px;line-height:1.5;font-weight:600;color:var(--ink);margin:28px 0 12px;padding-left:22px}
.article-body h3::before{content:"";position:absolute;left:0;top:.66em;width:13px;height:3px;border-radius:2px;background:var(--brand)}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px;color:var(--ink)}
.article-body ul{margin:0 0 1.2em}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:9px}
.article-body ul li::before{content:"";position:absolute;left:4px;top:.74em;width:7px;height:7px;border-radius:50%;background:var(--brand)}
.article-body ol{counter-reset:cmsli;margin:0 0 1.2em}
.article-body ol li{position:relative;padding-left:32px;margin-bottom:10px;counter-increment:cmsli}
.article-body ol li::before{
  content:counter(cmsli);position:absolute;left:0;top:.34em;
  width:21px;height:21px;border-radius:6px;background:rgba(255,106,43,.13);
  color:var(--brand-deep);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;line-height:1;
}
.article-body blockquote{margin:24px 0;padding:16px 20px;border-left:3px solid var(--accent);background:#F1FAF8;border-radius:0 12px 12px 0;color:#33313C}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:24px auto}
.article-body figure{margin:26px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px}
.article-body a{color:var(--brand-deep);text-decoration:underline;text-decoration-style:dashed;text-underline-offset:3px}
.article-body a:hover{text-decoration-style:solid}
.article-body table{display:block;width:100%;max-width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px;margin:22px 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body th{background:#FAF8F4;font-weight:600;color:var(--ink)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-body code{background:#F4F1EB;border-radius:6px;padding:2px 6px;font-size:14px}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);
  border-radius:var(--radius);background:#FCFBF9;color:var(--muted);
}
.empty-state svg{width:44px;height:44px;stroke:var(--brand);margin:0 auto 14px}
.empty-state p{margin-bottom:16px;font-size:15px}

/* 标签与操作 */
.article-foot{margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.action-row{display:flex;flex-wrap:wrap;gap:12px}
.action-btn{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;border-radius:var(--radius-xs);
  border:1px solid var(--line);background:#fff;color:#3B3944;font-size:14px;font-weight:600;
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.action-btn:hover{color:var(--brand-deep);border-color:var(--brand);transform:translateY(-2px)}
.action-btn.is-on{color:#fff;background:var(--brand);border-color:var(--brand)}

/* 侧栏 */
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-1);margin-bottom:20px}
.side-title{position:relative;font-size:16px;font-weight:700;color:var(--ink);padding-left:12px;margin-bottom:14px}
.side-title::before{content:"";position:absolute;left:0;top:.2em;width:3px;height:.9em;background:var(--brand);border-radius:2px}
.side-list{display:flex;flex-direction:column;gap:2px}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 10px;border-radius:10px;font-size:14px;color:#3B3944}
.side-list a:hover{background:#FAF7F2;color:var(--brand-deep)}
.side-list span.num{font-size:12px;color:var(--line);font-variant-numeric:tabular-nums}
.side-note{font-size:13.5px;line-height:1.8;color:var(--muted)}
.side-contact{display:flex;flex-direction:column;gap:10px;margin-top:14px;font-size:14px;color:#3B3944}
.side-contact li{display:flex;align-items:flex-start;gap:9px;line-height:1.6}
.side-contact svg{flex:0 0 auto;margin-top:3px;stroke:var(--brand)}

/* 相邻入口双卡 */
.adjacent{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:26px}
@media(max-width:640px){.adjacent{grid-template-columns:1fr}}
.adj-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.adj-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#DCD6CB}
.adj-label{font-size:12px;font-weight:600;color:var(--accent);letter-spacing:.04em}
.adj-card h3{font-size:17px;font-weight:600;color:var(--ink);margin:8px 0 6px}
.adj-card p{font-size:13.5px;color:var(--muted);line-height:1.7}

/* 相关推荐 */
.related{margin-top:26px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:16px}
@media(max-width:1024px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.related-grid{grid-template-columns:1fr}}
.rcard{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.rcard:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.rcard-img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#EFEBE4}
.rcard-body{padding:16px 18px 20px}
.rcard-body h3{font-size:16px;font-weight:600;color:var(--ink);margin:10px 0 8px;line-height:1.5}
.rcard:hover h3{color:var(--brand-deep)}
.rcard-body p{font-size:13.5px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rcard-meta{display:flex;align-items:center;gap:8px;margin-top:12px;font-size:12.5px;color:var(--muted)}

/* 返回栏目条 */
.back-bar{
  margin-top:26px;background:var(--ink);border-radius:var(--radius);
  padding:24px 26px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.back-bar p{color:var(--inv);font-size:15px;font-weight:600}
.back-bar .chips{display:flex;flex-wrap:wrap;gap:10px}
.back-bar .chips a{
  padding:8px 14px;border-radius:999px;font-size:13.5px;color:var(--inv);
  border:1px solid rgba(245,243,247,.28);transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.back-bar .chips a:hover{background:var(--brand);border-color:var(--brand);color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--inv-muted);padding:64px 0 24px;margin-top:40px}
.footer-grid{display:flex;flex-wrap:wrap;gap:32px}
.footer-grid>div{flex:1 1 220px;min-width:0}
@media(max-width:640px){.footer-grid{gap:26px}}
.site-footer .brand{margin-bottom:14px}
.site-footer .brand-top{color:var(--inv)}
.site-footer .brand-bottom{color:var(--inv-muted)}
.footer-desc{font-size:13.5px;line-height:1.8;color:var(--inv-muted);max-width:280px;margin-bottom:14px}
.footer-mail{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--inv)}
.footer-mail svg{stroke:var(--brand)}
.footer-mail:hover{color:var(--brand)}
.footer-title{font-size:15px;font-weight:600;color:var(--inv);margin-bottom:16px;letter-spacing:.04em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--inv-muted);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-links a:hover{color:var(--brand);transform:translateX(2px)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(245,243,247,.14);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#918D9B;
}
@media(max-width:640px){
  .site-footer{padding:52px 0 84px}
  .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category1 */
/* ===================== 1. 设计变量 ===================== */
:root{
  --primary:#FF6A2B;
  --primary-dark:#E24E12;
  --accent:#00BFA5;
  --ink:#16141C;
  --bg:#F8F6F2;
  --card:#FFFFFF;
  --line:#E8E4DC;
  --text:#22202A;
  --muted:#6B6873;
  --inv:#F5F3F7;
  --inv-muted:#C9C5CF;
  --success:#17916B;
  --warn:#D9481E;
  --r-card:16px;
  --r-img:12px;
  --r-input:10px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(22,20,28,.06), 0 8px 24px rgba(22,20,28,.06);
  --sh-2:0 12px 32px rgba(22,20,28,.12);
  --container:1200px;
  --header-h:70px;
}

/* ===================== 2. Reset / Base ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:.01em;
  color:var(--text);background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--text);text-decoration:none;background-color:transparent;transition:color .2s ease,transform .2s ease;}
a:hover{color:var(--primary);}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.02em;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
::selection{background:rgba(255,106,43,.18);}

/* ===================== 3. 容器与板块 ===================== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media (min-width:1440px){.container{max-width:1280px;}}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--dark{background:var(--ink);color:var(--inv);}
.section--dark h2,.section--dark h3{color:var(--inv);}
@media (max-width:1024px){.section{padding:72px 0;}.section--tight{padding:56px 0;}}
@media (max-width:640px){.section{padding:56px 0;}.section--tight{padding:44px 0;}}

/* XY Grid 间距统一 */
.grid-padding-x{--xy-gutter:40px;margin-left:calc(var(--xy-gutter) / -2);margin-right:calc(var(--xy-gutter) / -2);}
.grid-padding-x > .cell{padding-left:calc(var(--xy-gutter) / 2);padding-right:calc(var(--xy-gutter) / 2);}
@media (max-width:640px){.grid-padding-x{--xy-gutter:24px;}}

/* ===================== 4. 标题组件 ===================== */
.sec-head{margin-bottom:44px;}
.sec-head--center{text-align:center;}
.sec-title{position:relative;font-size:clamp(24px,2.8vw,34px);padding-top:20px;}
.sec-title::before{content:"";position:absolute;left:0;top:0;width:32px;height:4px;border-radius:2px;background:var(--primary);}
.sec-head--center .sec-title::before{left:50%;transform:translateX(-50%);}
.sec-sub{margin-top:14px;font-size:17px;color:var(--muted);max-width:720px;}
.sec-head--center .sec-sub{margin-left:auto;margin-right:auto;}
.section--dark .sec-sub{color:var(--inv-muted);}
h3{font-size:20px;font-weight:600;line-height:1.4;}
@media (max-width:640px){h3{font-size:18px;}}

/* ===================== 5. 按钮 / 徽章 / 标签 ===================== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;
  border-radius:var(--r-btn);font-size:16px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff;}
.btn-primary:hover,.btn-primary:focus{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(226,78,18,.24);}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--ink);border-color:var(--ink);color:#fff;transform:translateY(-2px);}
.btn-ghost--inv{border-color:rgba(245,243,247,.7);color:var(--inv);}
.btn-ghost--inv:hover,.btn-ghost--inv:focus{background:var(--inv);border-color:var(--inv);color:var(--ink);}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary);}
.link-arrow svg{transition:transform .2s ease;}
.link-arrow:hover svg{transform:translateX(3px);}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(0,191,165,.12);color:#00907C;font-size:12px;font-weight:600;letter-spacing:.04em;}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border:1px solid var(--line);border-radius:999px;
  font-size:13px;color:var(--muted);background:#fff;}
@media (max-width:640px){.btn{width:100%;}}

/* ===================== 6. 头部导航 ===================== */
.site-header{position:sticky;top:0;z-index:60;height:var(--header-h);
  background:rgba(248,246,242,.94);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);transition:box-shadow .25s ease,background-color .25s ease;}
.site-header.is-scrolled{background:#F8F6F2;box-shadow:0 8px 26px rgba(22,20,28,.08);}
.header-inner{height:var(--header-h);display:flex;align-items:center;gap:24px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{position:relative;width:34px;height:34px;border-radius:10px;background:var(--primary);flex:0 0 auto;}
.brand-mark::after{content:"";position:absolute;right:5px;bottom:5px;width:15px;height:15px;background:#F8F6F2;
  clip-path:polygon(100% 0,100% 100%,0 100%);border-radius:2px;}
.brand-text{display:flex;flex-direction:column;line-height:1.05;}
.brand-top{font-size:15px;font-weight:700;color:var(--ink);letter-spacing:.02em;}
.brand-bottom{font-size:11px;font-weight:600;color:var(--primary);letter-spacing:.08em;}
.brand:hover .brand-top{color:var(--primary);}

.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{position:relative;display:inline-flex;align-items:center;height:34px;padding:0 12px;border-radius:8px;
  font-size:15px;color:var(--text);white-space:nowrap;}
.nav-links a:hover{color:var(--primary);background:rgba(255,106,43,.07);}
.nav-links a.is-active{color:var(--primary);font-weight:700;}
.nav-links a.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;border-radius:2px;background:var(--primary);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;transition:all .2s ease;}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px);}
.menu-toggle{display:none;}

/* ===================== 7. 移动抽屉 / 底部 Tab ===================== */
.off-canvas{background:var(--ink);color:var(--inv);}
.off-canvas .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid rgba(245,243,247,.12);}
.off-canvas .drawer-head .brand-top{color:var(--inv);}
.off-canvas .drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid rgba(245,243,247,.24);background:transparent;color:var(--inv);cursor:pointer;}
.off-canvas .drawer-nav{display:flex;flex-direction:column;padding:12px 12px 0;}
.off-canvas .drawer-nav a{padding:14px 12px;border-radius:10px;font-size:16px;color:var(--inv-muted);border-bottom:1px solid rgba(245,243,247,.08);}
.off-canvas .drawer-nav a:hover{color:var(--primary);background:rgba(255,106,43,.08);}
.off-canvas .drawer-nav a.is-active{color:var(--primary);font-weight:700;}
.off-canvas .drawer-cta{padding:20px;}

.tabbar{display:none;}
@media (max-width:640px){
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:80;
    background:rgba(255,255,255,.98);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
    border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
    height:calc(60px + env(safe-area-inset-bottom));}
  .tabbar a{flex:1 1 0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:10.5px;color:var(--muted);line-height:1.2;}
  .tabbar a svg{width:22px;height:22px;stroke-width:1.6;}
  .tabbar a.is-active{color:var(--primary);font-weight:700;}
  .tabbar a.is-active svg{stroke-width:2.1;}
  body{padding-bottom:calc(60px + env(safe-area-inset-bottom));}
}

/* ===================== 8. 面包屑 ===================== */
.crumb-bar{padding:18px 0 0;background:var(--bg);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:#BFBAB1;}
.crumb .now{color:var(--text);font-weight:600;}

/* ===================== 9. Hero ===================== */
.hero-cat{position:relative;padding:56px 0 88px;overflow:hidden;
  background:
    radial-gradient(circle at 82% 12%, rgba(255,106,43,.14), transparent 46%),
    linear-gradient(180deg,#FDFCFA 0%, var(--bg) 100%);}
.hero-cat::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(22,20,28,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(22,20,28,.05) 1px,transparent 1px);
  background-size:60px 60px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 72%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 72%);}
.hero-cat .container{position:relative;z-index:1;}
.hero-media{position:relative;}
.media-frame{position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--line);
  background:linear-gradient(135deg,#FFE3D3,#F4F1EC);aspect-ratio:4 / 3;}
.media-frame img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.media-frame.is-fallback::before{content:attr(data-fallback);position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:52px;font-weight:700;color:var(--primary);background:linear-gradient(135deg,#FFE3D3,#F4F1EC);}
.hero-slash{position:absolute;right:-16px;bottom:-16px;width:28%;height:66px;background:var(--primary);
  clip-path:polygon(18% 0,100% 0,82% 100%,0 100%);border-radius:4px;box-shadow:0 12px 26px rgba(226,78,18,.28);}
.hero-copy{padding-left:8px;}
.hero-copy h1{margin:18px 0 16px;font-size:clamp(30px,4vw,48px);line-height:1.25;letter-spacing:.02em;}
.hero-lead{font-size:17px;line-height:1.9;color:#4A4754;max-width:620px;}
.dot-list{margin:24px 0 28px;display:flex;flex-direction:column;gap:12px;}
.dot-list li{position:relative;padding-left:22px;font-size:15.5px;color:#3C3A47;line-height:1.7;}
.dot-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;background:var(--primary);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
@media (max-width:1024px){
  .hero-cat{padding:36px 0 64px;}
  .hero-media{order:2;margin-top:36px;}
  .hero-copy{order:1;padding-left:0;}
  .hero-slash{width:22%;height:52px;}
}

/* ===================== 10. 说明文板块 ===================== */
.explain-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:32px;height:100%;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;}
.explain-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.explain-card h3{margin-bottom:14px;display:flex;align-items:center;gap:10px;}
.explain-card h3 .num{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;flex:0 0 auto;
  border-radius:50%;border:1.5px solid var(--primary);color:var(--primary);font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;}
.explain-card p{font-size:16px;color:#4A4754;line-height:1.9;}
.explain-card p + p{margin-top:12px;}
.explain-figure{margin-bottom:0;}

/* ===================== 11. 准备清单（步骤流） ===================== */
.steps{position:relative;}
.step-item{position:relative;padding-left:64px;padding-bottom:36px;}
.step-item:last-child{padding-bottom:0;}
.step-item::before{content:"";position:absolute;left:19px;top:44px;bottom:0;width:2px;background:linear-gradient(180deg,rgba(255,106,43,.45),rgba(255,106,43,.06));}
.step-item:last-child::before{display:none;}
.step-dot{position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;background:#fff;
  border:1.5px solid var(--primary);color:var(--primary);display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;}
.step-item h3{margin-bottom:8px;}
.step-item p{font-size:15.5px;color:var(--muted);line-height:1.85;}
@media (max-width:640px){
  .step-item{padding-left:52px;}
  .step-item::before{left:15px;}
  .step-dot{width:32px;height:32px;font-size:13px;}
}

/* ===================== 12. FAQ 折叠 ===================== */
.faq-wrap{max-width:920px;margin:0 auto;}
.accordion{background:transparent;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.accordion-item{background:#fff;border-bottom:1px solid var(--line);}
.accordion-item:last-child{border-bottom:0;}
.accordion-title{position:relative;display:flex;align-items:center;min-height:64px;padding:0 64px 0 24px;
  font-size:18px;font-weight:600;color:var(--ink);border:0;transition:color .2s ease,background-color .2s ease;}
.accordion-title h3{margin:0;font-size:18px;font-weight:600;color:inherit;}
.accordion-title:hover,.accordion-title:focus{background:#FFF9F5;color:var(--primary);}
.accordion-title::before{content:"" !important;position:absolute;right:28px;top:50%;width:10px;height:10px;margin-top:-7px;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg);
  transition:transform .2s ease,border-color .2s ease;}
.accordion-item.is-active > .accordion-title{color:var(--primary);}
.accordion-item.is-active > .accordion-title::before{transform:rotate(-135deg);border-color:var(--primary);}
.accordion-content{padding:0 64px 22px 27px;border-left:3px solid var(--primary);font-size:15.5px;line-height:1.85;color:#4A4754;}
.accordion-content p + p{margin-top:10px;}
@media (max-width:640px){
  .accordion-title{padding:0 52px 0 18px;font-size:16px;min-height:60px;}
  .accordion-title h3{font-size:16px;}
  .accordion-title::before{right:22px;}
  .accordion-content{padding:0 20px 20px 21px;}
}

/* ===================== 13. 相关分类卡 ===================== */
.rel-card{display:flex;flex-direction:column;height:100%;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.rel-card:hover .rel-title{color:var(--primary);}
.rel-media{aspect-ratio:16 / 9;border-radius:0;border:0;border-bottom:1px solid var(--line);}
.rel-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.rel-title{font-size:20px;font-weight:600;color:var(--ink);transition:color .2s ease;}
.rel-text{font-size:14.5px;color:var(--muted);line-height:1.8;}
.rel-foot{margin-top:auto;padding-top:6px;}

/* ===================== 14. 更新说明条 ===================== */
.update-note{border:1px dashed var(--line);border-radius:16px;background:#fff;padding:20px 24px;
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14.5px;color:var(--muted);}
.update-note .note-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:0 0 auto;}

/* ===================== 15. CTA 通栏 ===================== */
.cta-band{background:var(--ink);color:var(--inv);position:relative;overflow:hidden;border-radius:0;}
.cta-band::before{content:"";position:absolute;inset:0;opacity:.35;
  background-image:radial-gradient(rgba(245,243,247,.16) 1px,transparent 1px);background-size:22px 22px;}
.cta-inner{position:relative;z-index:1;}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);color:var(--inv);}
.cta-inner p{margin-top:12px;font-size:16px;color:var(--inv-muted);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.cta-mail{margin-top:16px;font-size:14px;color:var(--inv-muted);}
.cta-mail a{color:var(--accent);}
@media (max-width:1024px){.cta-actions{justify-content:flex-start;margin-top:26px;}}

/* ===================== 16. 页脚 ===================== */
.site-footer{background:var(--ink);color:var(--inv-muted);padding:72px 0 28px;}
.footer-grid{padding-bottom:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-top{color:var(--inv);}
.footer-brand .brand-bottom{color:var(--primary);}
.footer-desc{font-size:14.5px;line-height:1.85;color:var(--inv-muted);max-width:300px;}
.footer-mail{display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:14px;color:var(--inv);}
.footer-mail:hover{color:var(--primary);}
.footer-title{font-size:15px;font-weight:600;color:var(--inv);margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--inv-muted);}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-bottom{border-top:1px solid rgba(245,243,247,.14);padding-top:22px;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:13px;color:#8E8A98;}
@media (max-width:640px){
  .site-footer{padding:56px 0 calc(28px + 60px);}
  .footer-grid .cell{margin-bottom:32px;}
}

/* 进入动画 */
.reveal-up{animation:revealUp .6s ease both;}
@keyframes revealUp{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:none;}}
@media (prefers-reduced-motion:reduce){.reveal-up{animation:none;}html{scroll-behavior:auto;}}

/* roulang page: category2 */
:root{
  --primary:#FF6A2B;
  --primary-dark:#E24E12;
  --accent:#00BFA5;
  --ink:#16141C;
  --bg:#F8F6F2;
  --card:#FFFFFF;
  --line:#E8E4DC;
  --text:#22202A;
  --muted:#6B6873;
  --inverse:#F5F3F7;
  --inverse-muted:#C9C5CF;
  --success:#17916B;
  --warn:#D9481E;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(22,20,28,.06), 0 8px 24px rgba(22,20,28,.06);
  --shadow-2:0 12px 32px rgba(22,20,28,.12);
  --container:1200px;
  --gap:22px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
  padding-bottom:0;
}
img{max-width:100%;display:block;height:auto;border-radius:var(--radius-md);}
a{color:var(--text);text-decoration:none;transition:color .18s ease,transform .18s ease;}
a:hover{color:var(--primary);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:4px;
}
.container{
  width:92%;
  max-width:var(--container);
  margin:0 auto;
}
@media (min-width:1440px){
  .container{max-width:1280px;}
}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{margin-bottom:44px;}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--text);
}
.section-head h2::before{
  content:"";
  display:block;
  width:32px;
  height:4px;
  border-radius:2px;
  background:var(--primary);
  margin-bottom:18px;
}
.section-head .lead{
  margin-top:14px;
  font-size:16px;
  color:var(--muted);
  max-width:660px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  border:1.5px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 6px 18px rgba(255,106,43,.28);
}
.btn-primary:hover,.btn-primary:active{
  background:var(--primary-dark);
  color:#fff;
  transform:translateY(-2px);
}
.btn-ghost{
  background:transparent;
  color:var(--ink);
  border-color:var(--ink);
}
.btn-ghost:hover{
  background:var(--ink);
  color:#fff;
  transform:translateY(-2px);
}
.btn-ghost-light{
  background:transparent;
  color:var(--inverse);
  border-color:rgba(245,243,247,.7);
}
.btn-ghost-light:hover{
  background:#fff;
  color:var(--ink);
  border-color:#fff;
  transform:translateY(-2px);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--primary);
}
.link-arrow svg{transition:transform .18s ease;}
.link-arrow:hover svg{transform:translateX(3px);}
.link-arrow:hover{color:var(--primary-dark);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(248,246,242,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease,background-color .2s ease;
}
.site-header.is-scrolled{
  background:rgba(248,246,242,1);
  box-shadow:0 6px 20px rgba(22,20,28,.08);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:70px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  width:36px;
  height:36px;
  border-radius:10px;
  background:var(--primary);
  position:relative;
  flex:0 0 auto;
  overflow:hidden;
}
.brand-mark::after{
  content:"";
  position:absolute;
  right:-8px;
  bottom:-8px;
  width:22px;
  height:22px;
  background:var(--ink);
  transform:rotate(45deg);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12;}
.brand-top{font-size:15px;font-weight:700;letter-spacing:.04em;color:var(--ink);}
.brand-bottom{font-size:11px;font-weight:600;letter-spacing:.12em;color:var(--muted);}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  padding:6px 0;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-2px;
  height:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease;
}
.nav-links a:hover{color:var(--primary);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--primary);font-weight:700;}
.nav-links a.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:var(--card);
  color:var(--ink);
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);}
.menu-toggle{display:none;}

/* ---------- 抽屉导航 ---------- */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(22,20,28,.5);
  opacity:0;
  visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;
  z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:300px;
  max-width:86vw;
  background:var(--card);
  z-index:80;
  transform:translateX(105%);
  transition:transform .26s ease;
  padding:22px 20px 28px;
  display:flex;
  flex-direction:column;
  gap:18px;
  overflow-y:auto;
  box-shadow:-10px 0 30px rgba(22,20,28,.16);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-links{display:flex;flex-direction:column;gap:2px;}
.drawer-links a{
  padding:13px 10px;
  border-radius:var(--radius-sm);
  font-size:15px;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-links a:hover{background:var(--bg);color:var(--primary);}
.drawer-links a.is-active{color:var(--primary);font-weight:700;background:rgba(255,106,43,.08);}
.drawer-note{font-size:13px;color:var(--muted);}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  background-color:#221F2A;
  color:var(--inverse);
  padding:88px 0 84px;
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(22,20,28,.45);
}
.cat-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(245,243,247,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(245,243,247,.06) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.55;
}
.cat-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--inverse-muted);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--inverse-muted);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.6;}
.breadcrumb .current{color:#fff;font-weight:600;}
.cat-hero h1{
  font-size:clamp(30px,4vw,46px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:.02em;
  max-width:820px;
}
.cat-hero .hero-lead{
  margin-top:20px;
  max-width:720px;
  font-size:16px;
  line-height:1.9;
  color:rgba(245,243,247,.86);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:30px;
}
.tag-pill{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(245,243,247,.42);
  font-size:13px;
  color:rgba(245,243,247,.9);
}

/* ---------- 卡片网格 ---------- */
.info-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:var(--gap);
}
.info-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:28px;
  display:flex;
  flex-direction:column;
  gap:14px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#DCD6CB;}
.info-card.is-wide{
  grid-column:1 / -1;
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  align-items:center;
  gap:32px;
  padding:30px;
}
.info-card.is-wide .info-body{display:flex;flex-direction:column;gap:14px;}
.info-card .card-media{
  border-radius:var(--radius-md);
  overflow:hidden;
  background:linear-gradient(135deg,rgba(255,106,43,.14),rgba(0,191,165,.16));
  aspect-ratio:16/9;
}
.info-card .card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:var(--radius-md);
}
.info-card h3{
  font-size:21px;
  line-height:1.45;
  font-weight:600;
  color:var(--text);
}
.info-card p{
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}
.badge{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  padding:4px 12px;
  border-radius:999px;
  background:rgba(0,191,165,.12);
  color:#00806F;
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
}
.seal-tag{
  display:inline-flex;
  align-items:center;
  padding:3px 9px;
  border-radius:6px;
  border:1px solid var(--line);
  font-size:12px;
  color:var(--muted);
  background:var(--bg);
}

/* ---------- 深色数据条 ---------- */
.stat-strip{
  background:var(--ink);
  color:var(--inverse);
  padding:64px 0;
  position:relative;
  overflow:hidden;
}
.stat-strip::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(245,243,247,.09) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.7;
  pointer-events:none;
}
.stat-strip .container{position:relative;z-index:2;}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
}
.stat-item{
  padding:0 26px;
  border-left:1px solid rgba(245,243,247,.14);
}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-num{
  font-size:clamp(34px,4vw,50px);
  line-height:1.1;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}
.stat-item:nth-child(odd) .stat-num{color:var(--primary);}
.stat-item:nth-child(even) .stat-num{color:var(--accent);}
.stat-label{
  margin-top:8px;
  font-size:14px;
  color:var(--inverse-muted);
  line-height:1.6;
}

/* ---------- 自查清单 ---------- */
.check-wrap{
  display:grid;
  grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
  gap:48px;
  align-items:start;
}
.check-intro h2{
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.32;
  font-weight:700;
}
.check-intro h2::before{
  content:"";
  display:block;
  width:32px;
  height:4px;
  border-radius:2px;
  background:var(--primary);
  margin-bottom:18px;
}
.check-intro p{
  margin-top:16px;
  color:var(--muted);
  font-size:15.5px;
}
.check-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:10px 26px;
}
.check-list li{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:18px 0;
  border-bottom:1px solid var(--line);
  font-size:15.5px;
  color:var(--text);
}
.check-list li:last-child{border-bottom:0;}
.check-list .tick{
  flex:0 0 auto;
  width:22px;
  height:22px;
  border-radius:50%;
  border:1.5px solid var(--accent);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--accent);
  margin-top:3px;
}

/* ---------- FAQ ---------- */
.faq-block .accordion{
  background:transparent;
  border:0;
  border-top:1px solid var(--line);
}
.faq-block .accordion-item{border-bottom:1px solid var(--line);}
.faq-block .accordion-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 4px 22px 0;
  border:0;
  background:transparent;
  color:var(--text);
  font-size:16px;
  position:relative;
}
.faq-block .accordion-title h3{
  font-size:19px;
  line-height:1.5;
  font-weight:600;
  margin:0;
}
.faq-block .accordion-title::before{
  content:"";
  position:absolute;
  left:-14px;
  top:14px;
  bottom:14px;
  width:3px;
  background:var(--primary);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .2s ease;
}
.faq-block .accordion-item.is-active .accordion-title::before{transform:scaleY(1);}
.faq-block .accordion-title::after{
  content:"";
  width:10px;
  height:10px;
  flex:0 0 auto;
  border-right:2px solid var(--muted);
  border-bottom:2px solid var(--muted);
  transform:rotate(45deg);
  transition:transform .2s ease;
  margin-right:6px;
}
.faq-block .accordion-item.is-active .accordion-title::after{
  transform:rotate(-135deg);
  border-color:var(--primary);
}
.faq-block .accordion-content{
  padding:0 40px 22px 0;
  border:0;
  background:transparent;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.85;
}

/* ---------- 相关分类 ---------- */
.rel-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:var(--gap);
}
.rel-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#DCD6CB;}
.rel-card h3{font-size:19px;font-weight:600;line-height:1.45;}
.rel-card p{font-size:14.5px;color:var(--muted);}
.rel-card .link-arrow{margin-top:auto;}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  background:var(--ink);
  color:var(--inverse);
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-60px;
  bottom:-90px;
  width:320px;
  height:320px;
  background:var(--primary);
  opacity:.16;
  transform:rotate(45deg);
}
.cta-band .container{position:relative;z-index:2;padding:78px 0;}
.cta-band h2{
  font-size:clamp(24px,2.8vw,34px);
  line-height:1.32;
  font-weight:700;
  color:#fff;
}
.cta-band p{
  margin-top:14px;
  color:var(--inverse-muted);
  max-width:640px;
  font-size:15.5px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:var(--inverse-muted);
  padding:72px 0 0;
}
.footer-grid{gap:38px 24px;}
.site-footer .brand-top{color:#fff;}
.site-footer .brand-bottom{color:var(--inverse-muted);}
.site-footer .brand-mark{background:var(--primary);}
.site-footer .brand-mark::after{background:#0F0D13;}
.footer-desc{
  margin-top:18px;
  font-size:14px;
  line-height:1.85;
  color:var(--inverse-muted);
  max-width:300px;
}
.footer-mail{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:16px;
  font-size:14px;
  color:var(--inverse);
}
.footer-mail:hover{color:var(--primary);}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{
  font-size:14px;
  color:var(--inverse-muted);
  transition:color .18s ease,transform .18s ease;
  display:inline-block;
}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-bottom{
  margin-top:52px;
  border-top:1px solid rgba(245,243,247,.12);
  padding:20px 0 24px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:#9C97A5;
}

/* ---------- 移动底部 Tab ---------- */
.bottom-tab{display:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-links{display:none;}
  .menu-toggle{display:inline-flex;}
  .section{padding:72px 0;}
  .section-tight{padding:60px 0;}
  .check-wrap{grid-template-columns:1fr;gap:30px;}
  .stat-item{padding:0 18px;}
  .info-card.is-wide{grid-template-columns:1fr;}
}
@media (max-width:900px){
  .rel-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:640px){
  body{padding-bottom:70px;}
  .header-inner{height:62px;}
  .header-actions .btn{display:none;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:30px;}
  .cat-hero{padding:60px 0 56px;}
  .hero-actions .btn{width:100%;}
  .info-grid{grid-template-columns:1fr;gap:18px;}
  .info-card.is-wide{grid-column:auto;grid-template-columns:1fr;gap:20px;padding:22px;}
  .info-card{padding:22px;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 0;}
  .stat-item{padding:0 16px;border-left:1px solid rgba(245,243,247,.14);}
  .stat-item:nth-child(odd){border-left:0;padding-left:0;}
  .rel-grid{grid-template-columns:1fr;}
  .check-panel{padding:6px 18px;}
  .faq-block .accordion-title{padding:18px 0;}
  .faq-block .accordion-title h3{font-size:17px;}
  .faq-block .accordion-content{padding:0 10px 18px 0;}
  .cta-band .container{padding:58px 0;}
  .cta-actions .btn{width:100%;}
  .site-footer{padding-top:56px;}
  .footer-bottom{flex-direction:column;}
  .bottom-tab{
    display:flex;
    position:fixed;
    left:0;
    right:0;
    bottom:0;
    z-index:75;
    height:60px;
    padding-bottom:env(safe-area-inset-bottom);
    background:rgba(255,255,255,.97);
    border-top:1px solid var(--line);
    backdrop-filter:blur(10px);
  }
  .bottom-tab a{
    flex:1;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:3px;
    font-size:10.5px;
    color:var(--muted);
    letter-spacing:.02em;
  }
  .bottom-tab a svg{width:22px;height:22px;stroke-width:1.7;}
  .bottom-tab a.is-active{color:var(--primary);font-weight:600;}
  .bottom-tab a.is-active svg{stroke:var(--primary);fill:rgba(255,106,43,.12);}
}

/* roulang page: category3 */
:root{
  --primary:#FF6A2B;
  --primary-dark:#E24E12;
  --accent:#00BFA5;
  --ink:#16141C;
  --bg:#F8F6F2;
  --card:#FFFFFF;
  --line:#E8E4DC;
  --text:#22202A;
  --muted:#6B6873;
  --invert:#F5F3F7;
  --invert-muted:#C9C5CF;
  --success:#17916B;
  --warn:#D9481E;
  --r-card:16px;
  --r-img:12px;
  --r-input:10px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(22,20,28,.06), 0 8px 24px rgba(22,20,28,.06);
  --sh-2:0 12px 32px rgba(22,20,28,.12);
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --sp-section:96px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none}
a:hover,a:focus{color:var(--primary-dark)}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:.02em;font-weight:700}
h1{font-size:clamp(30px,4vw,44px);line-height:1.25}
h2{font-size:clamp(26px,3vw,34px);line-height:1.3}
h3{font-size:21px;line-height:1.4;font-weight:600}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){
  .container{max-width:1280px}
}

/* Foundation 栅格覆盖 */
.grid-padding-x{margin-left:-12px;margin-right:-12px}
.grid-padding-x > .cell{padding-left:12px;padding-right:12px}

/* 基础板块 */
.section{padding:var(--sp-section) 0}
.section--tight{padding:72px 0}
.section--paper{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:40px}
.section-kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:600;letter-spacing:.16em;
  color:var(--primary);margin-bottom:14px;
}
.section-kicker::before{content:"";width:32px;height:4px;border-radius:2px;background:var(--primary)}
.section-sub{color:var(--muted);font-size:16px;margin-top:12px;max-width:64ch}
.section-head--row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;
}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(248,246,242,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease,background .22s ease;
}
.site-header.is-scrolled{background:#F8F6F2;box-shadow:0 6px 22px rgba(22,20,28,.08)}
.header-inner{height:70px;display:flex;align-items:center;gap:20px}

.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;flex:0 0 auto;background:var(--primary);
  clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);
  border-radius:9px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.06}
.brand-top{font-size:16px;font-weight:700;letter-spacing:.02em}
.brand-bottom{font-size:11.5px;font-weight:600;color:var(--muted);letter-spacing:.18em}
.brand:hover .brand-bottom{color:var(--primary)}

.nav-links{display:flex;align-items:center;gap:22px;margin-left:12px}
.nav-links a{
  position:relative;padding:6px 0;font-size:15px;color:var(--muted);
  text-decoration:none;transition:color .18s ease;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-links a:hover{color:var(--primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--primary);font-weight:700}
.nav-links a.is-active::after{transform:scaleX(1)}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:10px;background:transparent;color:var(--muted);
  cursor:pointer;transition:all .18s ease;
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);background:#fff}
.offcanvas-toggle{display:none}

/* 按钮 */
.button.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;margin:0;font-size:15px;font-weight:600;line-height:1;
  border:1.5px solid transparent;border-radius:var(--r-btn);
  background:var(--primary);color:#fff;text-decoration:none;cursor:pointer;
  box-shadow:0 6px 18px rgba(255,106,43,.22);
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
}
.button.btn:hover,.button.btn:focus{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(226,78,18,.28)}
.button.btn:active{transform:translateY(0);background:#C8440F}
.button.btn-sm{padding:10px 18px;font-size:14px}
.button.btn-block{width:100%}
.button.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);box-shadow:none}
.button.btn-ghost:hover,.button.btn-ghost:focus{background:var(--ink);color:#fff;border-color:var(--ink);box-shadow:none}
.button.btn-ghost-light{background:transparent;color:var(--invert);border-color:rgba(245,243,247,.55);box-shadow:none}
.button.btn-ghost-light:hover{background:var(--invert);color:var(--ink);border-color:var(--invert)}
.button.btn[disabled],.button.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}

.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--primary);
}
.link-arrow svg{transition:transform .2s ease}
.link-arrow:hover svg{transform:translateX(3px)}

/* 徽章 / 标签 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  background:rgba(0,191,165,.12);color:#0A8F7C;
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;border:1px solid var(--line);border-radius:999px;
  font-size:13px;color:var(--muted);background:#fff;
}

/* 图片位与降级 */
.media{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  background:linear-gradient(135deg,#FF8A54,#E24E12);
  display:flex;align-items:center;justify-content:center;
}
.media::before{
  content:attr(data-char);
  position:absolute;z-index:0;
  font-size:56px;font-weight:700;color:rgba(255,255,255,.86);letter-spacing:.06em;
}
.media img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover}
.media img.is-missing{display:none}
.media-16x9{aspect-ratio:16/9}
.media-4x3{aspect-ratio:4/3}

/* Hero */
.page-hero{position:relative;padding:52px 0 84px;background:var(--bg);overflow:hidden}
.hero-mesh{
  position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:linear-gradient(rgba(22,20,28,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(22,20,28,.045) 1px,transparent 1px);
  background-size:34px 34px;
}
.page-hero::after{
  content:"";position:absolute;top:-70px;right:-80px;width:360px;height:360px;
  background:var(--primary);opacity:.11;
  clip-path:polygon(22% 0,100% 0,100% 76%,0 100%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);margin-bottom:26px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#BFBAB0}
.breadcrumb .current{color:var(--ink);font-weight:600}
.eyebrow{
  display:inline-flex;align-items:center;
  padding:6px 14px;border:1px solid var(--primary);border-radius:6px;
  color:var(--primary);font-size:13px;font-weight:600;letter-spacing:.08em;
  background:rgba(255,106,43,.06);margin-bottom:20px;
}
.hero-lead{font-size:17px;line-height:1.9;color:var(--muted);max-width:60ch;margin-top:18px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-media{position:relative;box-shadow:var(--sh-1)}
.hero-media::after{
  content:"";position:absolute;right:0;bottom:0;width:30%;height:26%;
  background:var(--primary);opacity:.9;z-index:2;
  clip-path:polygon(100% 0,100% 100%,0 100%);
  border-bottom-right-radius:var(--r-card);
}

/* 时间线 */
.timeline{position:relative;list-style:none;padding:6px 0 0}
.timeline::before{
  content:"";position:absolute;left:19px;top:12px;bottom:26px;width:2px;
  background:linear-gradient(180deg,var(--primary),rgba(255,106,43,.12));
}
.timeline-item{position:relative;padding:0 0 34px 68px}
.timeline-item:last-child{padding-bottom:6px}
.step-num{
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:2px solid var(--primary);color:var(--primary);
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;z-index:2;
}
.timeline-item h3{margin:6px 0 8px}
.timeline-item p{color:var(--muted);font-size:16px;margin:0}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}

/* 右侧信息卡 */
.side-sticky{position:sticky;top:96px}
.info-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.info-card .media{border-radius:0}
.info-card-body{padding:24px}
.info-card-body h3{margin-bottom:10px}
.info-card-body > p{color:var(--muted);font-size:15px;margin-bottom:18px}
.info-list{list-style:none;margin:18px 0 0;padding:18px 0 0;border-top:1px dashed var(--line)}
.info-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--muted);padding:6px 0;
}
.info-list i{color:var(--primary);margin-top:4px;font-size:13px}
.info-note{font-size:12.5px;color:var(--muted);margin-top:14px;line-height:1.7}

/* 现象对照 */
.symptom-rows{display:grid;gap:0;margin:0;border-top:1px solid var(--line)}
.symptom-row{
  display:grid;grid-template-columns:238px 1fr;gap:28px;
  padding:24px 0;border-bottom:1px dashed var(--line);
}
.symptom-row dt{
  font-size:17px;font-weight:600;color:var(--ink);
  display:flex;align-items:flex-start;gap:10px;
}
.symptom-row dt i{color:var(--accent);margin-top:5px;font-size:14px}
.symptom-row dd{margin:0;color:var(--muted);font-size:16px}
.symptom-hint{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:6px;font-size:13.5px;color:var(--success);font-weight:600;
}

/* FAQ */
.faq-list{list-style:none;margin:0;border-top:1px solid var(--line)}
.faq-list .accordion-item{border-bottom:1px solid var(--line);background:transparent}
.faq-q{margin:0;font-size:inherit}
.faq-list .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;min-height:62px;padding:16px 4px 16px 16px;
  border-left:3px solid transparent;border-bottom:0;
  background:transparent;color:var(--ink);font-size:18px;font-weight:600;
  text-decoration:none;transition:color .2s ease,border-color .2s ease,padding .2s ease;
}
.faq-list .accordion-title::before{display:none}
.faq-list .accordion-title:hover{color:var(--primary)}
.faq-list .accordion-item.is-active > .faq-q > .accordion-title{
  color:var(--primary);border-left-color:var(--primary);
}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto;color:currentColor}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;top:8px;width:10px;height:1.8px;border-radius:2px;background:currentColor;
  transition:transform .2s ease;
}
.faq-icon::before{left:0;transform:rotate(45deg)}
.faq-icon::after{right:0;transform:rotate(-45deg)}
.accordion-item.is-active .faq-icon::before{transform:rotate(-45deg)}
.accordion-item.is-active .faq-icon::after{transform:rotate(45deg)}
.faq-list .accordion-content{padding:0 4px 24px 16px;background:transparent;border:0}
.faq-list .accordion-content p{font-size:15.5px;line-height:1.85;color:var(--muted)}
.faq-list .accordion-content a{text-decoration:underline dashed;text-underline-offset:3px}

/* 相关分类横向条 */
.related-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  padding:22px 24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
}
.related-label{font-size:14px;font-weight:600;color:var(--ink);margin-right:6px}
.related-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border:1px solid var(--line);border-radius:999px;
  font-size:14px;color:var(--text);background:var(--bg);
  transition:all .18s ease;
}
.related-link:hover{border-color:var(--primary);color:var(--primary);background:#fff;transform:translateY(-1px)}
.related-link i{font-size:12px;color:var(--accent)}

/* CTA 通栏 */
.cta-band{
  position:relative;color:var(--invert);
  background-image:linear-gradient(rgba(22,20,28,.88),rgba(22,20,28,.88)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  padding:76px 0;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;bottom:-60px;width:300px;height:300px;
  background:var(--primary);opacity:.2;clip-path:polygon(0 0,100% 40%,100% 100%,0 100%);
}
.cta-band .container{position:relative;z-index:2}
.cta-band h2{color:#fff;max-width:20ch}
.cta-band p{color:var(--invert-muted);font-size:16px;max-width:58ch;margin-top:14px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-meta{
  display:grid;gap:12px;margin-top:28px;padding-top:24px;
  border-top:1px solid rgba(245,243,247,.18);
}
.cta-meta span{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--invert-muted)}
.cta-meta i{color:var(--accent)}

/* 页脚 */
.site-footer{background:var(--ink);color:var(--invert-muted);padding:72px 0 32px}
.footer-grid{row-gap:36px}
.footer-brand .brand{color:#fff}
.footer-brand .brand-bottom{color:var(--invert-muted)}
.footer-brand .brand:hover .brand-bottom{color:var(--primary)}
.footer-desc{font-size:14px;line-height:1.8;color:var(--invert-muted);margin:18px 0 16px;max-width:34ch}
.footer-mail{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--invert);transition:color .18s ease}
.footer-mail:hover{color:var(--primary)}
.footer-title{font-size:15px;font-weight:600;color:var(--invert);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--invert-muted);transition:color .18s ease,transform .18s ease}
.footer-links a:hover{color:var(--primary);transform:translateX(2px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(245,243,247,.14);
  font-size:13px;color:#8E8A99;
}

/* 移动端抽屉 */
.off-canvas{background:var(--bg);border-left:1px solid var(--line);width:296px}
.off-canvas .close-button{color:var(--muted);top:14px;right:14px}
.mobile-brand{display:flex;align-items:center;gap:10px;padding:24px 22px 18px;border-bottom:1px solid var(--line)}
.mobile-nav{display:flex;flex-direction:column;padding:12px 0}
.mobile-nav a{
  padding:15px 22px;font-size:16px;color:var(--text);border-left:3px solid transparent;
  transition:all .18s ease;
}
.mobile-nav a:hover{background:#fff;color:var(--primary)}
.mobile-nav a.is-active{border-left-color:var(--primary);color:var(--primary);font-weight:700;background:#fff}
.off-canvas-cta{padding:20px 22px}

/* 底部 Tab */
.bottom-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -6px 20px rgba(22,20,28,.08);
  padding-bottom:env(safe-area-inset-bottom);
}
.bottom-tab a{
  flex:1;min-height:60px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;font-size:10.5px;color:var(--muted);text-decoration:none;transition:color .18s ease;
}
.bottom-tab a i{font-size:20px}
.bottom-tab a.is-active{color:var(--primary);font-weight:700}

/* 响应式 */
@media (max-width:1024px){
  :root{--sp-section:72px}
  .nav-links{display:none}
  .header-cta{display:none}
  .offcanvas-toggle{display:inline-flex}
  .side-sticky{position:static;margin-top:40px}
  .page-hero{padding:40px 0 64px}
  .symptom-row{grid-template-columns:190px 1fr;gap:20px}
}
@media (max-width:640px){
  :root{--sp-section:56px}
  .container{padding:0 16px}
  .section-head--row{flex-direction:column;align-items:flex-start}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .button.btn{width:100%}
  .hero-media::after{width:38%}
  .timeline-item{padding-left:58px}
  .timeline::before{left:17px}
  .step-num{width:36px;height:36px;font-size:14px}
  .symptom-row{grid-template-columns:1fr;gap:8px}
  .faq-list .accordion-title{font-size:16px;min-height:56px;padding-left:12px}
  .faq-list .accordion-content{padding-left:12px}
  .cta-actions .button.btn{width:100%}
  .bottom-tab{display:flex}
  .site-footer{padding-bottom:96px}
  .footer-bottom{flex-direction:column}
}
@media (min-width:641px) and (max-width:1024px){
  .container{width:92%;padding:0 20px}
}

/* roulang page: category4 */
:root{
  --brand:#FF6A2B;
  --brand-dark:#E24E12;
  --accent:#00BFA5;
  --ink:#16141C;
  --bg:#F8F6F2;
  --card:#FFFFFF;
  --line:#E8E4DC;
  --text:#22202A;
  --muted:#6B6873;
  --inv:#F5F3F7;
  --inv-muted:#C9C5CF;
  --ok:#17916B;
  --warn:#D9481E;
  --r-card:16px;
  --r-img:14px;
  --r-input:10px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,20,28,.06), 0 8px 24px rgba(22,20,28,.06);
  --sh-2:0 12px 32px rgba(22,20,28,.12);
  --sec:96px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--text);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand);}
button{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
h1,h2,h3{letter-spacing:.02em;}
ul,ol{padding-left:1.1em;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(255,106,43,.22);}

/* ==== 容器 ==== */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ==== 按钮 ==== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;letter-spacing:.02em;line-height:1;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(255,106,43,.26);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(226,78,18,.3);}
.btn-primary:active{transform:translateY(0);background:#C8430D;}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--text);}
.btn-ghost:hover{background:var(--text);color:#fff;transform:translateY(-2px);}
.btn-ghost-inv{background:transparent;color:var(--inv);border-color:rgba(245,243,247,.5);}
.btn-ghost-inv:hover{background:var(--inv);color:var(--ink);transform:translateY(-2px);}
.btn-sm{height:42px;padding:0 18px;font-size:14.5px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-loading{opacity:.55;pointer-events:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);
}
.link-arrow svg{transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--brand-dark);}
.link-arrow:hover svg{transform:translateX(3px);}

.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-pill);
  font-size:13.5px;color:var(--muted);background:rgba(255,255,255,.7);
}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(0,191,165,.12);color:#00806E;font-size:12.5px;font-weight:600;letter-spacing:.02em;
}

/* ==== 头部导航 ==== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(248,246,242,.94);
  -webkit-backdrop-filter:saturate(150%) blur(12px);
  backdrop-filter:saturate(150%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease),background-color .25s var(--ease);
}
.site-header.is-scrolled{background:rgba(248,246,242,.99);box-shadow:0 6px 22px rgba(22,20,28,.08);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:70px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  position:relative;width:36px;height:36px;border-radius:11px;background:var(--brand);flex:0 0 auto;
  box-shadow:0 6px 14px rgba(255,106,43,.28);
}
.brand-mark::after{
  content:"";position:absolute;right:8px;bottom:8px;width:13px;height:13px;background:#fff;
  clip-path:polygon(0 100%,100% 100%,100% 0);
}
.brand-text{display:flex;flex-direction:column;line-height:1.05;}
.brand-top{font-size:15px;font-weight:700;color:var(--text);letter-spacing:.04em;}
.brand-bottom{font-size:11px;font-weight:600;color:var(--muted);letter-spacing:.14em;}
.brand:hover .brand-top{color:var(--brand);}
.nav-links{display:flex;align-items:center;gap:26px;flex-wrap:nowrap;}
.nav-links a{
  position:relative;font-size:15px;color:var(--text);padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.nav-links a:hover{color:var(--brand);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--brand);font-weight:700;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:42px;height:42px;display:none;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}

/* ==== 抽屉导航 ==== */
.off-canvas-wrapper{position:relative;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:302px;max-width:88vw;
  background:#fff;border-left:1px solid var(--line);z-index:80;
  padding:20px 20px 32px;overflow-y:auto;
  transform:translateX(104%);transition:transform .28s var(--ease);
  box-shadow:-12px 0 34px rgba(22,20,28,.12);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;
  display:grid;place-items:center;color:var(--muted);
}
.drawer-close:hover{color:var(--brand);border-color:var(--brand);}
.drawer-links{display:flex;flex-direction:column;gap:2px;margin-bottom:22px;}
.drawer-links a{
  padding:12px 12px;border-radius:10px;font-size:15.5px;color:var(--text);
}
.drawer-links a:hover{background:#FFF4EE;color:var(--brand);}
.drawer-links a.is-active{background:#FFF4EE;color:var(--brand);font-weight:700;}
.drawer-meta{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);line-height:1.9;}
.scrim{
  position:fixed;inset:0;background:rgba(22,20,28,.42);z-index:70;opacity:0;visibility:hidden;
  transition:opacity .25s var(--ease),visibility .25s var(--ease);
}
.scrim.is-open{opacity:1;visibility:visible;}

/* ==== 面包屑 ==== */
.crumb{padding:22px 0 0;font-size:13px;color:var(--muted);}
.crumb ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0;}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:#BFBAB2;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb li[aria-current]{color:var(--text);font-weight:600;}

/* ==== Hero ==== */
.page-hero{position:relative;padding:52px 0 88px;overflow:hidden;}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(22,20,28,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(22,20,28,.045) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:radial-gradient(circle at 22% 12%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 22% 12%,#000 0%,transparent 72%);
  pointer-events:none;
}
.hero-grid{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:48px;}
.hero-copy{flex:1 1 520px;min-width:0;}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;
  color:var(--brand);letter-spacing:.06em;margin-bottom:16px;
}
.hero-kicker::before{content:"";width:32px;height:4px;border-radius:2px;background:var(--brand);}
.page-hero h1{
  font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:700;color:var(--text);margin-bottom:20px;
}
.lede{font-size:17px;line-height:1.9;color:var(--muted);max-width:36em;}
.lede strong{color:var(--text);font-weight:600;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 22px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.hero-figure{
  flex:1 1 380px;min-width:0;position:relative;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);aspect-ratio:5/4;background:#EFEAE2;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure::after{
  content:"";position:absolute;right:0;bottom:0;width:28%;height:44%;background:var(--brand);
  clip-path:polygon(0 100%,100% 100%,100% 0);opacity:.94;
}
.media.is-fallback{display:grid;place-items:center;background:linear-gradient(140deg,var(--brand),#FF9A63);}
.media.is-fallback::after{content:attr(data-fallback);color:#fff;font-size:20px;font-weight:700;letter-spacing:.08em;}

/* ==== 板块 ==== */
.section{padding:var(--sec) 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(25px,3vw,34px);line-height:1.3;font-weight:700;color:var(--text);margin-bottom:14px;position:relative;padding-top:20px;}
.section-head h2::before{content:"";position:absolute;top:0;left:0;width:32px;height:4px;border-radius:2px;background:var(--brand);}
.section-sub{font-size:16px;line-height:1.85;color:var(--muted);max-width:44em;}

/* ==== 对比表 ==== */
.table-scroll{
  overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
}
table.cmp{width:100%;min-width:760px;border-collapse:collapse;}
table.cmp caption{text-align:left;padding:18px 22px;font-size:14px;color:var(--muted);border-bottom:1px solid var(--line);}
table.cmp thead th{
  background:var(--ink);color:var(--inv);font-size:14px;font-weight:600;letter-spacing:.06em;
  text-align:left;padding:16px 22px;white-space:nowrap;
}
table.cmp thead th:first-child{border-top-left-radius:0;}
table.cmp tbody td{
  padding:18px 22px;font-size:15px;line-height:1.8;color:var(--muted);
  border-top:1px solid var(--line);vertical-align:top;
}
table.cmp tbody td:first-child{color:var(--text);font-weight:600;width:26%;}
table.cmp tbody tr:hover{background:#FFF7F2;}
table.cmp tbody td .cell-step{color:var(--brand);font-weight:600;}
.table-note{margin-top:16px;font-size:13.5px;color:var(--muted);}

/* ==== 折叠面板 ==== */
.faq-wrap{display:flex;flex-wrap:wrap;gap:40px;}
.faq-side{flex:0 0 300px;max-width:300px;}
.faq-side .side-card{
  position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:17px;font-weight:600;margin-bottom:10px;}
.side-card p{font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:18px;}
.side-card .side-line{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--muted);padding:7px 0;}
.side-card .side-line svg{color:var(--brand);flex:0 0 auto;}
.faq-list{flex:1 1 480px;min-width:0;}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:14px;
  margin-bottom:14px;overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{box-shadow:var(--sh-1);}
.faq-item.is-open{border-left:3px solid var(--brand);}
.faq-h{margin:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:62px;padding:12px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--text);line-height:1.5;
}
.faq-q .faq-ic{width:20px;height:20px;flex:0 0 auto;color:var(--brand);transition:transform .2s var(--ease);}
.faq-item.is-open .faq-q .faq-ic{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);}
.faq-a-inner{padding:0 22px 20px;font-size:15.5px;line-height:1.85;color:var(--muted);}
.faq-a-inner a{color:var(--brand);border-bottom:1px dashed rgba(255,106,43,.55);}
.faq-a-inner a:hover{border-bottom-style:solid;}

/* ==== 准备事项 ==== */
.prep-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.prep-item{
  display:flex;gap:16px;padding:24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.prep-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#F3D6C6;}
.prep-num{
  flex:0 0 auto;width:46px;height:46px;border-radius:var(--r-pill);
  display:grid;place-items:center;border:1px solid rgba(255,106,43,.4);color:var(--brand);
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
}
.prep-item h3{font-size:18px;font-weight:600;margin-bottom:6px;}
.prep-item p{font-size:14.5px;color:var(--muted);line-height:1.8;}

/* ==== 相关分类 ==== */
.rel-bar{display:flex;flex-wrap:wrap;gap:14px;}
.rel-bar a{
  display:inline-flex;align-items:center;gap:10px;padding:15px 22px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-pill);font-size:15px;font-weight:600;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.rel-bar a svg{transition:transform .2s var(--ease);color:var(--brand);}
.rel-bar a:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-1);}
.rel-bar a:hover svg{transform:translateX(3px);}

/* ==== 深色 CTA 通栏 ==== */
.cta-band{position:relative;background:var(--ink);border-radius:24px;padding:56px 56px;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(245,243,247,.14) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;
}
.cta-band::after{
  content:"";position:absolute;top:0;right:0;width:32%;height:100%;background:var(--brand);
  clip-path:polygon(38% 0,100% 0,100% 100%,0 100%);opacity:.9;
}
.cta-inner{position:relative;z-index:2;max-width:640px;}
.cta-inner h2{font-size:clamp(24px,2.8vw,32px);line-height:1.35;color:var(--inv);margin-bottom:14px;font-weight:700;}
.cta-inner p{font-size:15.5px;line-height:1.85;color:var(--inv-muted);margin-bottom:26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ==== 页脚 ==== */
.site-footer{background:var(--ink);color:var(--inv-muted);padding:76px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:36px;}
.footer-brand .brand-top{color:var(--inv);}
.footer-brand .brand-bottom{color:var(--inv-muted);}
.footer-desc{font-size:14px;line-height:1.85;margin:18px 0 16px;color:var(--inv-muted);}
.footer-mail{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--inv);}
.footer-mail:hover{color:var(--brand);}
.footer-title{font-size:15px;font-weight:600;color:var(--inv);margin-bottom:16px;letter-spacing:.04em;}
.footer-links{display:flex;flex-direction:column;}
.footer-links a{font-size:14px;color:var(--inv-muted);padding:6px 0;transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-links a:hover{color:var(--brand);transform:translateX(2px);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  margin-top:52px;padding:20px 0 26px;border-top:1px solid rgba(245,243,247,.12);font-size:13px;color:var(--inv-muted);
}

/* ==== 底部 Tab ==== */
.tabbar{display:none;}

/* ==== 响应式 ==== */
@media (min-width:1440px){:root{--sec:104px;}}
@media (max-width:1024px){
  :root{--sec:72px;}
  .nav-links{display:none;}
  .icon-btn{display:inline-flex;}
  .page-hero{padding:36px 0 64px;}
  .hero-grid{gap:36px;}
  .hero-copy{flex:1 1 100%;}
  .hero-figure{flex:1 1 100%;aspect-ratio:16/10;}
  .faq-side{flex:1 1 100%;max-width:none;}
  .faq-side .side-card{position:static;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .cta-band{padding:44px 36px;}
  .cta-band::after{width:34%;}
}
@media (max-width:640px){
  :root{--sec:58px;}
  body{padding-bottom:calc(60px + env(safe-area-inset-bottom));}
  .container{padding:0 16px;}
  .nav-inner{height:62px;}
  .nav-actions .btn{display:none;}
  .page-hero{padding:28px 0 52px;}
  .hero-actions .btn{width:100%;}
  .prep-grid{grid-template-columns:1fr;}
  .faq-q{font-size:16px;padding:12px 16px;min-height:58px;}
  .faq-a-inner{padding:0 16px 18px;}
  .section-head{margin-bottom:32px;}
  .cta-band{padding:34px 22px;border-radius:20px;}
  .cta-band::after{display:none;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding-top:56px;margin-top:64px;}
  .footer-bottom{padding:18px 0 22px;font-size:12.5px;}
  .rel-bar a{width:100%;justify-content:space-between;}
  .tabbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:65;
    height:calc(60px + env(safe-area-inset-bottom));
    padding-bottom:env(safe-area-inset-bottom);
    background:rgba(255,255,255,.97);
    -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
    border-top:1px solid var(--line);
  }
  .tabbar a{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    font-size:10.5px;color:var(--muted);line-height:1.2;
  }
  .tabbar a svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;}
  .tabbar a.is-active{color:var(--brand);}
  .tabbar a.is-active svg{stroke:var(--brand);}
}