/* roulang page: index */
:root{
  --c-primary:#E8503A;
  --c-primary-deep:#C63A26;
  --c-accent:#0F7C86;
  --c-accent-soft:#E3F2F1;
  --c-gold:#F2B24A;
  --c-bg:#FBF8F4;
  --c-surface:#FFFFFF;
  --c-surface-alt:#F3EDE6;
  --c-text:#1B2A30;
  --c-text-2:#5A6B72;
  --c-text-3:#8A979D;
  --c-line:#E7DED4;
  --c-success:#2E8B6E;
  --c-error:#D94A3D;
  --c-ink:#14232B;
  --g-brand:linear-gradient(120deg,#E8503A 0%,#F2B24A 100%);
  --g-cool:linear-gradient(135deg,#0F7C86 0%,#3FB6A8 100%);
  --radius-pill:999px;
  --radius-sm:12px;
  --radius-md:16px;
  --radius-lg:20px;
  --radius-xl:28px;
  --shadow-1:0 8px 24px rgba(27,42,48,.06);
  --shadow-2:0 16px 40px rgba(232,80,58,.14);
  --shadow-3:0 8px 32px rgba(20,35,43,.14);
  --font-sans:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift","Arial Narrow",var(--font-sans);
  --ease:0.25s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  font-family:var(--font-sans);
  font-size:16px;line-height:1.75;font-weight:400;
  color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--c-primary);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--c-text);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--alt{background:var(--c-surface-alt);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(24px,3vw,32px);font-weight:700;letter-spacing:-0.01em;line-height:1.3;}
.section-head .sub{color:var(--c-text-2);font-size:15px;margin-top:10px;max-width:620px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--c-accent);font-weight:600;margin-bottom:14px;}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--g-cool);border-radius:2px;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.28);
  box-shadow:0 6px 26px rgba(20,35,43,.12);
  transition:background var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-stuck{
  background:rgba(251,248,244,.94);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--c-line);
  box-shadow:0 10px 30px rgba(20,35,43,.10);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px;}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:15px;letter-spacing:-0.01em;text-shadow:0 1px 8px rgba(20,35,43,.35);}
.brand-mark{width:34px;height:34px;border-radius:12px;background:var(--g-brand);display:grid;place-items:center;flex:0 0 auto;box-shadow:0 6px 16px rgba(232,80,58,.35);}
.brand-mark svg{width:20px;height:20px;}
.brand-text{white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-item{
  position:relative;padding:10px 14px;font-size:15px;font-weight:500;color:#fff;
  border-radius:var(--radius-pill);text-shadow:0 1px 8px rgba(20,35,43,.35);
  transition:background var(--ease),color var(--ease);
}
.nav-item:hover{background:rgba(255,255,255,.18);color:#fff;}
.nav-item.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:var(--g-brand);
}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--radius-pill);display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.4);color:#fff;background:rgba(255,255,255,.12);
  transition:background var(--ease),transform var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.26);transform:translateY(-1px);}
.icon-btn svg{width:18px;height:18px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-pill);padding:14px 28px;font-size:15px;font-weight:600;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--g-brand);color:#fff;box-shadow:0 10px 24px rgba(232,80,58,.28);background-size:160% 160%;}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(232,80,58,.34);background-position:100% 50%;color:#fff;}
.btn-ghost{border-color:var(--c-primary);color:var(--c-primary);background:transparent;}
.btn-ghost:hover{background:rgba(232,80,58,.08);transform:translateY(-2px);color:var(--c-primary);}
.btn-light{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.5);color:#fff;}
.btn-light:hover{background:rgba(255,255,255,.28);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;color:var(--c-primary);}
.link-arrow span{transition:transform var(--ease);}
.link-arrow:hover span{transform:translateX(4px);}
.site-header.is-stuck .brand,
.site-header.is-stuck .nav-item,
.site-header.is-stuck .icon-btn{color:var(--c-text);text-shadow:none;}
.site-header.is-stuck .icon-btn{border-color:var(--c-line);background:var(--c-surface);}
.site-header.is-stuck .nav-item:hover{background:rgba(232,80,58,.08);color:var(--c-primary);}
.menu-btn{display:none;width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.4);background:rgba(255,255,255,.12);color:#fff;place-items:center;}
.menu-btn svg{width:20px;height:20px;}
.site-header.is-stuck .menu-btn{color:var(--c-text);border-color:var(--c-line);background:var(--c-surface);}
.mobile-drawer{
  position:fixed;inset:76px 0 0 0;z-index:80;display:none;
  background:rgba(251,248,244,.94);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  padding:32px 24px 40px;overflow-y:auto;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a.drawer-link{display:block;font-size:20px;font-weight:600;padding:14px 0;color:var(--c-text);border-bottom:1px solid var(--c-line);}
.mobile-drawer a.drawer-link.is-active{color:var(--c-primary);}
.drawer-foot{margin-top:28px;display:flex;flex-direction:column;gap:14px;}
.drawer-foot .drawer-tip{font-size:13px;color:var(--c-text-3);}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;padding:150px 0 84px;
  background:
    radial-gradient(circle at 12% 18%, rgba(242,178,74,.34), transparent 46%),
    radial-gradient(circle at 88% 78%, rgba(15,124,134,.30), transparent 48%),
    var(--g-brand);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(20,35,43,.18) 0%,rgba(20,35,43,.06) 55%,rgba(251,248,244,.06) 100%);
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:6fr 5fr;gap:56px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.20);border:1px solid rgba(255,255,255,.42);
  color:#fff;font-size:13px;font-weight:600;letter-spacing:.02em;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.hero-tag i{width:8px;height:8px;border-radius:50%;background:#fff;box-shadow:0 0 0 4px rgba(255,255,255,.25);}
.hero h1{
  margin:22px 0 18px;color:#fff;font-weight:700;letter-spacing:-0.01em;
  font-size:clamp(30px,4.4vw,52px);line-height:1.2;text-shadow:0 3px 20px rgba(20,35,43,.24);
}
.hero-sub{color:rgba(255,255,255,.94);font-size:17px;line-height:1.8;max-width:560px;text-shadow:0 2px 12px rgba(20,35,43,.22);}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:22px;margin-top:34px;}
.hero-trust li{display:flex;align-items:center;gap:7px;font-size:13px;color:rgba(255,255,255,.95);}
.hero-trust svg{width:15px;height:15px;flex:0 0 auto;}
.hero-visual{position:relative;}
.hero-card{
  position:relative;border-radius:var(--radius-xl);overflow:hidden;
  box-shadow:0 24px 60px rgba(20,35,43,.28);border:1px solid rgba(255,255,255,.4);
  background:var(--c-surface);
}
.hero-card img{width:100%;height:420px;object-fit:cover;transition:transform .4s ease;}
.hero-card:hover img{transform:scale(1.03);}
.hero-badge{
  position:absolute;right:-14px;bottom:-18px;background:var(--c-surface);border-radius:18px;
  padding:16px 20px;box-shadow:var(--shadow-3);border:1px solid var(--c-line);min-width:176px;
}
.hero-badge .num{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--c-primary);line-height:1.1;}
.hero-badge .num small{font-size:14px;font-weight:600;margin-left:3px;color:var(--c-text-2);}
.hero-badge .txt{font-size:12px;color:var(--c-text-3);margin-top:4px;line-height:1.5;}

/* ---------- stat bar ---------- */
.statbar{background:var(--c-surface);border-bottom:1px solid var(--c-line);}
.statbar-inner{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:38px 28px;text-align:center;border-left:1px solid var(--c-line);}
.stat:first-child{border-left:0;}
.stat .v{font-family:var(--font-num);font-size:34px;font-weight:700;color:var(--c-text);line-height:1.1;letter-spacing:-0.01em;}
.stat .v small{font-size:15px;font-weight:600;color:var(--c-accent);margin-left:4px;}
.stat .k{font-size:12px;color:var(--c-text-3);margin-top:8px;letter-spacing:.02em;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;position:relative;}
.steps::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;height:2px;
  background:linear-gradient(90deg,rgba(15,124,134,.35),rgba(232,80,58,.45));
  border-radius:2px;
}
.step{position:relative;padding-top:0;}
.step-node{
  width:54px;height:54px;border-radius:50%;background:var(--g-cool);color:#fff;
  display:grid;place-items:center;font-family:var(--font-num);font-size:18px;font-weight:700;
  box-shadow:0 10px 24px rgba(15,124,134,.28);position:relative;z-index:2;border:4px solid var(--c-surface-alt);
}
.step h3{font-size:18px;font-weight:700;margin:18px 0 8px;}
.step p{font-size:14px;color:var(--c-text-2);line-height:1.7;}
.step .pill{
  display:inline-block;margin-top:14px;padding:4px 12px;border-radius:var(--radius-pill);
  background:var(--c-surface);border:1px solid var(--c-line);font-size:12px;color:var(--c-accent);font-weight:600;
}

/* ---------- highlights ---------- */
.hl-grid{display:grid;grid-template-columns:1.62fr 1fr;gap:24px;}
.hl-main{
  grid-row:span 2;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-xl);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease);
}
.hl-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.hl-main figure{margin:0;overflow:hidden;border-radius:24px 24px 0 0;}
.hl-main img{width:100%;height:300px;object-fit:cover;transition:transform .4s ease;}
.hl-main:hover img{transform:scale(1.03);}
.hl-main .body{padding:28px 30px 32px;}
.hl-main h3{font-size:22px;font-weight:700;margin-bottom:12px;}
.hl-main p{font-size:15px;color:var(--c-text-2);line-height:1.8;}
.hl-main .link-arrow{margin-top:18px;}
.hl-side{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-lg);
  padding:26px 26px;box-shadow:var(--shadow-1);display:flex;gap:16px;align-items:flex-start;
  transition:transform var(--ease),box-shadow var(--ease);
}
.hl-side:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.hl-side .ico{
  width:46px;height:46px;border-radius:14px;background:var(--c-accent-soft);color:var(--c-accent);
  display:grid;place-items:center;flex:0 0 auto;
}
.hl-side .ico svg{width:22px;height:22px;}
.hl-side h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.hl-side p{font-size:14px;color:var(--c-text-2);line-height:1.7;}

/* ---------- plans ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.plan{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-xl);
  padding:32px 28px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease);
}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.plan.is-featured{
  border:2px solid transparent;
  background:linear-gradient(var(--c-surface),var(--c-surface)) padding-box,
             linear-gradient(120deg,#E8503A,#F2B24A) border-box;
  box-shadow:0 18px 44px rgba(232,80,58,.16);transform:translateY(-8px);
}
.plan.is-featured:hover{transform:translateY(-12px);}
.plan-flag{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  background:var(--c-gold);color:#3A2708;font-size:12px;font-weight:700;
  padding:5px 16px;border-radius:var(--radius-pill);letter-spacing:.04em;box-shadow:0 6px 16px rgba(242,178,74,.4);
}
.plan h3{font-size:20px;font-weight:700;margin-bottom:8px;}
.plan .desc{font-size:14px;color:var(--c-text-2);min-height:44px;line-height:1.7;}
.plan .price{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--c-primary);margin:20px 0 22px;}
.plan .price small{font-size:13px;font-family:var(--font-sans);font-weight:500;color:var(--c-text-3);margin-left:6px;}
.plan ul{display:flex;flex-direction:column;gap:12px;margin-bottom:26px;flex:1;}
.plan li{display:flex;gap:10px;font-size:14px;color:var(--c-text-2);line-height:1.6;}
.plan li svg{width:16px;height:16px;flex:0 0 auto;margin-top:4px;color:var(--c-success);}

/* ---------- news / cms ---------- */
.news-lead{
  display:grid;grid-template-columns:1fr 1fr;gap:0;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--radius-xl);overflow:hidden;
  box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease);margin-bottom:20px;
}
.news-lead:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.news-lead figure{margin:0;overflow:hidden;min-height:260px;}
.news-lead img{width:100%;height:100%;min-height:260px;object-fit:cover;transition:transform .4s ease;}
.news-lead:hover img{transform:scale(1.03);}
.news-lead .body{padding:32px 34px;display:flex;flex-direction:column;justify-content:center;gap:14px;}
.news-lead h3{font-size:22px;font-weight:700;line-height:1.42;}
.news-lead p{font-size:15px;color:var(--c-text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--c-text-3);}
.tag{
  display:inline-block;padding:4px 12px;border-radius:var(--radius-pill);
  background:var(--c-accent-soft);color:var(--c-accent);font-size:12px;font-weight:600;
}
.news-list{display:flex;flex-direction:column;gap:14px;}
.news-row{
  display:flex;align-items:center;gap:20px;justify-content:space-between;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-lg);
  padding:22px 26px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.news-row:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(232,80,58,.28);}
.news-row .txt{min-width:0;}
.news-row h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.news-row p{font-size:14px;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.7;}
.news-row .meta{display:flex;align-items:center;gap:12px;margin-top:10px;font-size:12px;color:var(--c-text-3);flex-wrap:wrap;}
.news-row .go{
  flex:0 0 auto;width:42px;height:42px;border-radius:50%;border:1px solid var(--c-line);
  display:grid;place-items:center;color:var(--c-primary);transition:background var(--ease),transform var(--ease);
}
.news-row:hover .go{background:var(--c-accent-soft);transform:translateX(3px);}
.empty{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--radius-xl);
  text-align:center;padding:36px 24px;
}
.empty svg{width:38px;height:38px;color:var(--c-text-3);}
.empty p{font-size:15px;color:var(--c-text-2);}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 24px;align-items:start;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-lg);
  overflow:hidden;transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item:hover{box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--c-text);
}
.faq-ico{
  width:28px;height:28px;border-radius:50%;border:1px solid var(--c-line);
  display:grid;place-items:center;flex:0 0 auto;color:var(--c-primary);
  transition:background var(--ease),color var(--ease),transform var(--ease);font-size:16px;line-height:1;
}
.faq-item.is-open .faq-ico{background:var(--g-brand);color:#fff;border-color:transparent;transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 22px 22px;font-size:15px;color:var(--c-text-2);line-height:1.85;}

/* ---------- cta ---------- */
.cta{
  position:relative;overflow:hidden;border-radius:32px;padding:64px;color:#fff;
  background:
    radial-gradient(circle at 18% 22%, rgba(255,255,255,.22), transparent 42%),
    radial-gradient(circle at 84% 80%, rgba(15,124,134,.42), transparent 46%),
    var(--g-brand);
  box-shadow:0 24px 60px rgba(232,80,58,.22);
}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;position:relative;z-index:2;}
.cta h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.3;margin-bottom:14px;}
.cta p{font-size:15px;line-height:1.85;color:rgba(255,255,255,.95);max-width:460px;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.cta-points span{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;padding:7px 14px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.36);
}
.form-card{
  background:var(--c-surface);border-radius:24px;padding:28px;box-shadow:var(--shadow-3);
  color:var(--c-text);
}
.form-card h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.form-card .hint{font-size:13px;color:var(--c-text-3);margin-bottom:20px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px;}
.field label{font-size:13px;color:var(--c-text-2);font-weight:600;}
.field input,.field select,.field textarea{
  height:48px;border-radius:var(--radius-sm);border:1px solid var(--c-line);background:var(--c-bg);
  padding:0 14px;transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(232,80,58,.18);
}
.form-note{font-size:12px;color:var(--c-text-3);margin-top:12px;line-height:1.6;}
.form-msg{display:none;margin-top:14px;padding:12px 14px;border-radius:var(--radius-sm);font-size:13px;background:#E9F6F1;color:var(--c-success);border:1px solid rgba(46,139,110,.28);}
.form-msg.is-show{display:block;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:#EFE7DE;margin-top:0;padding:72px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.foot-brand .brand{color:#fff;text-shadow:none;font-size:15px;}
.foot-brand p{font-size:14px;color:#A9B7BD;line-height:1.8;margin-top:16px;max-width:320px;}
.foot-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.foot-badges span{font-size:12px;padding:5px 12px;border-radius:var(--radius-pill);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:#D8CFC6;}
.site-footer h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.02em;}
.foot-links{display:flex;flex-direction:column;gap:12px;}
.foot-links a{font-size:14px;color:#A9B7BD;}
.foot-links a:hover{color:var(--c-gold);}
.foot-contact{display:flex;flex-direction:column;gap:12px;font-size:14px;color:#A9B7BD;}
.foot-contact strong{color:#EFE7DE;font-weight:600;}
.foot-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.foot-bottom p{font-size:12px;color:#8A979D;line-height:1.7;}
.to-top{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;color:#D8CFC6;
  border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-pill);padding:8px 16px;
  transition:background var(--ease),color var(--ease);
}
.to-top:hover{background:rgba(255,255,255,.1);color:var(--c-gold);}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .section{padding:76px 0;}
  .hero{padding:132px 0 70px;}
  .hero-grid{gap:36px;}
  .hero-card img{height:340px;}
  .nav-links{gap:2px;}
  .nav-item{padding:9px 10px;font-size:14px;}
  .stat{padding:30px 16px;}
  .stat .v{font-size:28px;}
  .steps{gap:20px;}
  .hl-grid{grid-template-columns:1fr 1fr;}
  .hl-main{grid-row:span 1;grid-column:span 2;}
  .cta{padding:44px;}
  .cta-grid{gap:32px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:860px){
  .nav-links,.nav-actions .icon-btn{display:none;}
  .menu-btn{display:grid;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual{order:-1;}
  .hero-card img{height:280px;}
  .hero-badge{right:12px;bottom:-16px;}
  .statbar-inner{grid-template-columns:1fr 1fr;}
  .stat:nth-child(3){border-left:0;}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--c-line);}
  .steps{grid-template-columns:1fr;gap:26px;}
  .steps::before{display:none;}
  .step{display:grid;grid-template-columns:54px 1fr;column-gap:18px;align-items:start;}
  .step h3{margin-top:8px;}
  .step p,.step .pill{grid-column:2;}
  .plans{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:12px;}
  .plan{flex:0 0 82%;scroll-snap-align:center;}
  .plan.is-featured{transform:none;}
  .news-lead{grid-template-columns:1fr;}
  .news-lead figure{min-height:200px;}
  .news-lead img{min-height:200px;}
  .faq-grid{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
}
@media (max-width:576px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .hero{padding:118px 0 56px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:15px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
  .brand-text{font-size:13px;}
  .brand-mark{width:30px;height:30px;border-radius:10px;}
  .btn{padding:13px 22px;font-size:14px;}
  .stat .v{font-size:26px;}
  .hl-grid{grid-template-columns:1fr;}
  .hl-main{grid-column:span 1;}
  .hl-main img{height:220px;}
  .cta{padding:30px 22px;border-radius:24px;}
  .form-card{padding:22px;}
  .news-row{flex-direction:column;align-items:flex-start;gap:12px;}
  .news-row .go{display:none;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
  .hero-card:hover img,.hl-main:hover img,.news-lead:hover img{transform:none;}
  .btn:hover,.plan:hover,.news-row:hover,.hl-side:hover,.hl-main:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --c-primary:#E8503A;
  --c-primary-deep:#C63A26;
  --c-accent:#0F7C86;
  --c-accent-soft:#E3F2F1;
  --c-gold:#F2B24A;
  --c-bg:#FBF8F4;
  --c-surface:#FFFFFF;
  --c-surface-alt:#F3EDE6;
  --c-text:#1B2A30;
  --c-text-2:#5A6B72;
  --c-text-3:#8A979D;
  --c-line:#E7DED4;
  --c-success:#2E8B6E;
  --c-error:#D94A3D;
  --g-brand:linear-gradient(120deg,#E8503A 0%,#F2B24A 100%);
  --g-cool:linear-gradient(135deg,#0F7C86 0%,#3FB6A8 100%);
  --r-btn:999px;
  --r-sm:16px;
  --r-md:20px;
  --r-lg:28px;
  --r-img:24px;
  --sh-1:0 8px 24px rgba(27,42,48,.06);
  --sh-2:0 16px 40px rgba(232,80,58,.14);
  --sh-glass:0 8px 32px rgba(20,35,43,.14);
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --num:"DIN Alternate","Bahnschrift","Arial Narrow",sans-serif;
  --ease:.25s ease;
  --w:1200px;
}
*{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:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--c-primary);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:16px;color:var(--c-text);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--alt{background:var(--c-surface-alt);}
.section--tight{padding:72px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--c-accent);background:var(--c-accent-soft);
  padding:6px 14px;border-radius:var(--r-btn);
}
.sec-head{max-width:720px;margin-bottom:40px;}
.sec-head h2{
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.35;font-weight:700;letter-spacing:-.01em;
  margin-top:16px;
}
.sec-head p{margin-top:14px;color:var(--c-text-2);font-size:16px;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(20,35,43,.34);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.28);
  box-shadow:0 6px 24px rgba(20,35,43,.12);
  transition:background var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-stuck{
  background:rgba(251,248,244,.94);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--c-line);
  box-shadow:0 10px 30px rgba(20,35,43,.12);
}
.nav-inner{
  max-width:var(--w);margin:0 auto;padding:0 24px;
  height:76px;display:flex;align-items:center;gap:28px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  background:var(--g-brand);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(232,80,58,.32);
}
.brand-mark svg{width:21px;height:21px;}
.brand-text{
  font-size:16px;font-weight:700;letter-spacing:-.01em;color:#fff;
  text-shadow:0 1px 6px rgba(20,35,43,.35);
  transition:color var(--ease),text-shadow var(--ease);
  white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-item{
  position:relative;display:inline-block;
  padding:8px 14px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;color:rgba(255,255,255,.92);
  text-shadow:0 1px 5px rgba(20,35,43,.3);
  transition:color var(--ease),background var(--ease);
  white-space:nowrap;
}
.nav-item:hover{color:#fff;background:rgba(255,255,255,.16);}
.nav-item.is-active{color:#fff;font-weight:700;}
.nav-item.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--g-brand);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.4);
  color:#fff;transition:background var(--ease),border-color var(--ease),color var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.18);color:#fff;border-color:rgba(255,255,255,.7);}
.btn-login{
  display:inline-flex;align-items:center;justify-content:center;
  padding:11px 22px;border-radius:var(--r-btn);
  background:var(--g-brand);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 8px 20px rgba(232,80,58,.3);
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
  white-space:nowrap;
}
.btn-login:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(232,80,58,.38);filter:saturate(115%);}
.site-header.is-stuck .brand-text,
.site-header.is-stuck .nav-item,
.site-header.is-stuck .icon-btn{color:var(--c-text);text-shadow:none;}
.site-header.is-stuck .nav-item:hover{background:rgba(232,80,58,.08);color:var(--c-primary);}
.site-header.is-stuck .nav-item.is-active{color:var(--c-primary);font-weight:700;}
.site-header.is-stuck .icon-btn{border-color:var(--c-line);color:var(--c-text);}
.site-header.is-stuck .icon-btn:hover{background:var(--c-surface-alt);color:var(--c-primary);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid rgba(255,255,255,.4);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:background var(--ease);}
.site-header.is-stuck .nav-toggle{border-color:var(--c-line);}
.site-header.is-stuck .nav-toggle span{background:var(--c-text);}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(251,248,244,.92);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  padding:100px 28px 40px;
  display:flex;flex-direction:column;gap:8px;
  transform:translateX(100%);
  transition:transform .3s ease;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer a.drawer-link{
  font-size:20px;font-weight:600;color:var(--c-text);
  padding:14px 0;border-bottom:1px solid var(--c-line);
}
.drawer a.drawer-link.is-active{color:var(--c-primary);}
.drawer .btn-login{margin-top:24px;width:100%;padding:15px 24px;font-size:16px;}
.drawer-close{
  position:absolute;top:20px;right:20px;width:42px;height:42px;border-radius:50%;
  border:1px solid var(--c-line);background:var(--c-surface);
  display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--c-text-2);
}
.drawer-note{margin-top:18px;font-size:13px;color:var(--c-text-3);line-height:1.8;}
body.drawer-open{overflow:hidden;}

/* ---------- 页头 KV ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:#14232B;
  padding:150px 0 86px;
  color:#fff;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.20;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 12% 18%,rgba(232,80,58,.55),transparent 46%),
    radial-gradient(circle at 84% 78%,rgba(15,124,134,.45),transparent 48%),
    linear-gradient(150deg,rgba(20,35,43,.86),rgba(20,35,43,.62));
}
.page-hero .container{position:relative;z-index:2;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.72);margin-bottom:22px;
}
.crumb a{color:rgba(255,255,255,.86);}
.crumb a:hover{color:var(--c-gold);}
.crumb .sep{opacity:.55;}
.crumb .cur{color:#fff;font-weight:600;}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.24;font-weight:700;letter-spacing:-.01em;
  max-width:16em;
}
.page-hero h1 em{
  font-style:normal;
  background:var(--g-brand);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-hero .hero-lede{
  margin-top:20px;max-width:640px;
  font-size:16px;line-height:1.85;color:rgba(255,255,255,.85);
}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.hero-chips span{
  font-size:13px;font-weight:500;
  padding:7px 14px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.26);
  color:#fff;
}

/* ---------- 导语 ---------- */
.lead-grid{
  display:grid;grid-template-columns:1.35fr 1fr;gap:44px;align-items:start;
}
.prose p{font-size:17px;line-height:1.9;color:var(--c-text-2);}
.prose p + p{margin-top:18px;}
.prose strong{color:var(--c-text);font-weight:600;}
.lead-side{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--sh-1);
}
.lead-side h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.lead-side .sub{font-size:13px;color:var(--c-text-3);margin-bottom:20px;}
.mini-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-top:1px dashed var(--c-line);
  font-size:15px;color:var(--c-text-2);line-height:1.7;
}
.mini-list li:first-of-type{border-top:0;}
.mini-list .dot{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  background:var(--g-cool);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;font-family:var(--num);margin-top:2px;
}

/* ---------- 阶梯图文 ---------- */
.zig-row{
  display:grid;grid-template-columns:1.02fr 1fr;gap:48px;align-items:center;
  padding:34px 0;
}
.zig-row + .zig-row{
  border-top:1px solid var(--c-line);
  margin-top:22px;padding-top:56px;
}
.zig-row.is-rev .zig-media{order:2;}
.zig-media{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--c-line);background:var(--c-surface);
  box-shadow:var(--sh-1);
}
.zig-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .4s ease;
}
.zig-media:hover img{transform:scale(1.03);}
.zig-media .media-tag{
  position:absolute;left:16px;bottom:16px;z-index:2;
  font-size:12px;font-weight:600;color:#fff;
  background:rgba(20,35,43,.72);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  padding:6px 13px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.24);
}
.zig-body .step-no{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--num);font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--c-primary);background:rgba(232,80,58,.1);
  padding:6px 14px;border-radius:var(--r-btn);
  margin-bottom:16px;
}
.zig-body h3{
  font-size:clamp(20px,2vw,24px);font-weight:700;line-height:1.4;
  letter-spacing:-.01em;margin-bottom:14px;
}
.zig-body p{font-size:16px;line-height:1.85;color:var(--c-text-2);}
.zig-body p + p{margin-top:12px;}
.check-list{margin-top:20px;display:grid;gap:10px;}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--c-text-2);line-height:1.7;
}
.check-list .tick{
  flex:0 0 auto;width:20px;height:20px;border-radius:50%;
  background:var(--c-accent-soft);color:var(--c-accent);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;margin-top:2px;
}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:22px;font-size:15px;font-weight:600;color:var(--c-primary);
}
.text-link .ar{transition:transform var(--ease);display:inline-block;}
.text-link:hover .ar{transform:translateX(4px);}

/* ---------- 准备清单 ---------- */
.prep-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.prep-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:26px 22px;
  box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.prep-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(232,80,58,.28);}
.prep-ico{
  width:44px;height:44px;border-radius:14px;
  background:var(--c-accent-soft);color:var(--c-accent);
  display:inline-flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}
.prep-ico svg{width:22px;height:22px;}
.prep-card h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.prep-card p{font-size:14px;line-height:1.75;color:var(--c-text-2);}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:box-shadow var(--ease),border-color var(--ease);
  overflow:hidden;
}
.faq-item:hover{box-shadow:var(--sh-2);border-color:rgba(232,80,58,.26);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:16px;font-weight:600;line-height:1.55;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .plus{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--c-line);color:var(--c-text-2);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:600;line-height:1;
  transition:background var(--ease),color var(--ease),transform var(--ease),border-color var(--ease);
}
.faq-item[open] summary .plus{
  background:var(--g-brand);color:#fff;border-color:transparent;transform:rotate(45deg);
}
.faq-item .answer{
  padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--c-text-2);
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--g-brand);
  padding:82px 0;
  color:#fff;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 16% 22%,rgba(255,255,255,.28),transparent 42%),
    radial-gradient(circle at 84% 82%,rgba(20,35,43,.28),transparent 46%);
}
.cta-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
}
.cta-copy h2{font-size:clamp(24px,2.8vw,34px);line-height:1.35;font-weight:700;letter-spacing:-.01em;}
.cta-copy p{margin-top:16px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.92);max-width:28em;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.cta-points span{
  font-size:13px;padding:7px 14px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.34);
}
.cta-form{
  background:var(--c-surface);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:0 18px 44px rgba(20,35,43,.24);
}
.cta-form h3{font-size:18px;font-weight:700;color:var(--c-text);margin-bottom:6px;}
.cta-form .form-note{font-size:13px;color:var(--c-text-3);margin-bottom:20px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;font-weight:600;color:var(--c-text-2);}
.field input,.field select,.field textarea{
  height:48px;padding:0 14px;border-radius:12px;
  border:1px solid var(--c-line);background:var(--c-bg);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
  width:100%;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);background:var(--c-surface);
  box-shadow:0 0 0 3px rgba(232,80,58,.18);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn-primary{
  background:var(--g-brand);color:#fff;
  box-shadow:0 10px 24px rgba(232,80,58,.3);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(232,80,58,.4);filter:saturate(115%);}
.btn-ghost{
  border:1px solid var(--c-primary);color:var(--c-primary);background:transparent;
}
.btn-ghost:hover{background:rgba(232,80,58,.08);color:var(--c-primary-deep);}
.btn-white{
  background:#fff;color:var(--c-primary-deep);
  box-shadow:0 10px 24px rgba(20,35,43,.18);
}
.btn-white:hover{color:var(--c-primary-deep);transform:translateY(-2px);box-shadow:0 16px 32px rgba(20,35,43,.24);}
.btn-block{width:100%;}
.form-submit{margin-top:20px;}
.form-success{
  display:none;margin-top:16px;padding:12px 16px;border-radius:12px;
  background:rgba(46,139,110,.12);color:var(--c-success);
  font-size:14px;border:1px solid rgba(46,139,110,.28);
}
.form-success.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#14232B;color:#EDE6DE;
  padding:72px 0 0;
}
.foot-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.12);
}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand .brand-text{color:#fff;text-shadow:none;}
.foot-brand p{font-size:14px;line-height:1.85;color:#A9B6BC;max-width:32em;}
.foot-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.foot-badges span{
  font-size:12px;padding:5px 12px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  color:#D6DEE2;
}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;}
.foot-links{display:grid;gap:11px;}
.foot-links a{font-size:14px;color:#A9B6BC;}
.foot-links a:hover{color:var(--c-gold);}
.foot-contact{display:grid;gap:11px;font-size:14px;color:#A9B6BC;line-height:1.75;}
.foot-contact strong{color:#EDE6DE;font-weight:600;}
.foot-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:26px 0 32px;
}
.foot-bottom p{font-size:12px;color:#8A979D;line-height:1.8;max-width:70em;}
.to-top{font-size:13px;color:#A9B6BC;padding:7px 14px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.16);}
.to-top:hover{color:var(--c-gold);border-color:rgba(242,178,74,.5);}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .nav-inner{gap:18px;}
  .nav-item{padding:8px 11px;font-size:14px;}
}
@media (max-width:992px){
  .section{padding:72px 0;}
  .nav-links{gap:2px;}
  .nav-item{padding:8px 9px;font-size:13.5px;}
  .brand-text{font-size:15px;}
  .page-hero{padding:132px 0 68px;}
  .lead-grid{grid-template-columns:1fr;gap:32px;}
  .zig-row{grid-template-columns:1fr;gap:28px;}
  .zig-row.is-rev .zig-media{order:0;}
  .prep-grid{grid-template-columns:repeat(2,1fr);}
  .cta-inner{grid-template-columns:1fr;gap:34px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:768px){
  .nav-links,.nav-actions .btn-login,.nav-actions .icon-btn{display:none;}
  .nav-toggle{display:flex;}
  .nav-inner{height:68px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .page-hero{padding:118px 0 56px;}
  .page-hero .hero-lede{font-size:15px;}
  .faq-grid{grid-template-columns:1fr;}
  .cta-form{padding:22px;}
  .form-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;gap:30px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:576px){
  .container{padding:0 18px;}
  .page-hero h1{font-size:30px;}
  .prep-grid{grid-template-columns:1fr;}
  .btn{width:100%;}
  .cta-points span{font-size:12px;}
  .zig-row + .zig-row{padding-top:40px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .zig-media:hover img{transform:none;}
  .prep-card:hover,.btn:hover{transform:none;}
}

/* roulang page: article */
:root{
  --c-primary:#E8503A;
  --c-primary-deep:#C63A26;
  --c-accent:#0F7C86;
  --c-accent-soft:#E3F2F1;
  --c-gold:#F2B24A;
  --c-bg:#FBF8F4;
  --c-surface:#FFFFFF;
  --c-surface-alt:#F3EDE6;
  --c-text:#1B2A30;
  --c-text-2:#5A6B72;
  --c-text-3:#8A979D;
  --c-line:#E7DED4;
  --c-success:#2E8B6E;
  --c-error:#D94A3D;
  --g-brand:linear-gradient(120deg,#E8503A 0%,#F2B24A 100%);
  --g-cool:linear-gradient(135deg,#0F7C86 0%,#3FB6A8 100%);
  --shadow-sm:0 8px 24px rgba(27,42,48,.06);
  --shadow-md:0 12px 32px rgba(27,42,48,.09);
  --shadow-lg:0 16px 40px rgba(232,80,58,.14);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:28px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift","Arial Narrow",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:76px;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:rgba(255,255,255,.14);
  backdrop-filter:blur(18px) saturate(160%);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.28);
  box-shadow:0 6px 24px rgba(20,35,43,.08);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-stuck{
  background:rgba(251,248,244,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--c-line);
  box-shadow:0 8px 28px rgba(27,42,48,.08);
}
.header-inner{display:flex;align-items:center;gap:20px;height:76px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--g-brand);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
  box-shadow:0 6px 16px rgba(232,80,58,.28);
}
.brand-mark svg{width:20px;height:20px;display:block}
.brand-text{font-size:15px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;color:var(--c-text)}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-item{
  position:relative;padding:10px 12px;font-size:14.5px;color:var(--c-text-2);
  border-radius:999px;transition:color .25s ease,background .25s ease;white-space:nowrap;
}
.nav-item:hover{color:var(--c-primary);background:rgba(232,80,58,.07)}
.nav-item.is-active{color:var(--c-text);font-weight:600}
.nav-item.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--g-brand);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.icon-btn{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  color:var(--c-text-2);transition:color .25s ease,background .25s ease;
}
.icon-btn:hover{color:var(--c-primary);background:rgba(232,80,58,.08)}
.icon-btn svg{width:19px;height:19px;display:block}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:12px;place-items:center;
  border:1px solid var(--c-line);color:var(--c-text);background:rgba(255,255,255,.6);
}
.menu-toggle svg{width:20px;height:20px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;font-size:15px;padding:14px 28px;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease;
  white-space:nowrap;border:1px solid transparent;
}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-primary{background:var(--g-brand);color:#fff;box-shadow:0 8px 20px rgba(232,80,58,.26)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(232,80,58,.34)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:rgba(232,80,58,.45);color:var(--c-primary);background:transparent}
.btn-ghost:hover{background:rgba(232,80,58,.08);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--c-primary-deep);box-shadow:0 10px 24px rgba(20,35,43,.18)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(20,35,43,.24)}
.btn-outline-light{border-color:rgba(255,255,255,.7);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.7;
}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent)}
.badge-gold{background:rgba(242,178,74,.16);color:#9A6A14}

/* ============ 文章头部 ============ */
.article-head{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#FFF6F0 0%,var(--c-bg) 100%);
  padding:26px 0 34px;
}
.article-head::before{
  content:"";position:absolute;width:460px;height:460px;right:-140px;top:-240px;border-radius:50%;
  background:radial-gradient(circle,rgba(232,80,58,.20),transparent 68%);pointer-events:none;
}
.article-head::after{
  content:"";position:absolute;width:380px;height:380px;left:-160px;top:-170px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,124,134,.16),transparent 68%);pointer-events:none;
}
.article-head .container{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3)}
.crumbs a{color:var(--c-text-2);transition:color .25s ease}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{color:#C9BCAE}
.head-main{max-width:880px;margin-top:22px}
.head-main h1{
  margin:16px 0 18px;font-size:clamp(26px,3.6vw,42px);line-height:1.34;
  font-weight:700;letter-spacing:-.01em;color:var(--c-text);
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--c-text-3)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#D6C9BB}
.meta-row .meta-strong{color:var(--c-text-2);font-weight:600}

/* ============ 正文布局 ============ */
.article-layout{
  display:grid;grid-template-columns:206px minmax(0,760px);gap:56px;
  justify-content:center;padding-top:44px;padding-bottom:24px;
}
.article-aside{position:sticky;top:104px;align-self:start;display:flex;flex-direction:column;gap:16px}
.aside-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:18px;box-shadow:var(--shadow-sm);
}
.aside-card h3{
  font-size:12px;letter-spacing:.06em;color:var(--c-text-3);
  margin:0 0 12px;font-weight:600;
}
.aside-card p{font-size:13px;line-height:1.8;color:var(--c-text-2);margin:0}
.share-list{display:flex;flex-wrap:wrap;gap:8px}
.share-btn{
  font-size:12.5px;padding:6px 12px;border-radius:999px;border:1px solid var(--c-line);
  color:var(--c-text-2);transition:all .25s ease;background:var(--c-surface);
}
.share-btn:hover{color:var(--c-primary);border-color:rgba(232,80,58,.4);background:rgba(232,80,58,.06)}
.share-tip{font-size:12px;color:var(--c-success);margin-top:10px;min-height:16px}

.entry{
  font-size:17px;line-height:1.9;color:var(--c-text);
  min-width:0;overflow-wrap:break-word;word-break:break-word;
}
.entry > *:first-child{margin-top:0}
.entry h2{
  position:relative;margin:2em 0 .8em;padding-left:16px;
  font-size:24px;line-height:1.5;font-weight:700;letter-spacing:-.01em;
}
.entry h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;
  border-radius:4px;background:var(--g-brand);
}
.entry h3{margin:1.7em 0 .6em;font-size:19px;line-height:1.6;font-weight:700}
.entry h4{margin:1.4em 0 .5em;font-size:17px;font-weight:700;color:var(--c-text-2)}
.entry p{margin:0 0 1.15em}
.entry a{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px;transition:color .25s ease}
.entry a:hover{color:var(--c-primary)}
.entry strong{font-weight:700}
.entry ul{list-style:none;padding-left:0;margin:0 0 1.2em}
.entry ul li{position:relative;padding-left:22px;margin-bottom:.5em}
.entry ul li::before{
  content:"";position:absolute;left:4px;top:.78em;width:7px;height:7px;
  border-radius:50%;background:var(--c-primary);
}
.entry ol{list-style:decimal;padding-left:1.4em;margin:0 0 1.2em}
.entry ol li{margin-bottom:.5em;padding-left:4px}
.entry ol li::marker{color:var(--c-primary);font-weight:700}
.entry blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--c-accent-soft);
  border-left:3px solid var(--c-accent);border-radius:0 14px 14px 0;color:#12515A;
}
.entry blockquote p{margin:0 0 .6em}
.entry blockquote p:last-child{margin-bottom:0}
.entry img{border-radius:16px;margin:1.6em 0;width:100%;height:auto}
.entry figure{margin:1.6em 0}
.entry figcaption{font-size:12.5px;color:var(--c-text-3);margin-top:10px;text-align:center;line-height:1.7}
.entry table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;
  margin:1.5em 0;font-size:15px;line-height:1.75;
}
.entry th,.entry td{border:1px solid var(--c-line);padding:11px 14px;text-align:left;vertical-align:top}
.entry thead th{background:var(--c-surface-alt);font-weight:600;color:var(--c-text)}
.entry tbody tr:nth-child(even){background:#FCFAF7}
.entry pre{
  background:#16262C;color:#EAF2F4;padding:18px 20px;border-radius:14px;
  overflow-x:auto;font-size:13.5px;line-height:1.75;margin:1.5em 0;
}
.entry code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.entry p code,.entry li code{
  background:var(--c-surface-alt);color:var(--c-primary-deep);
  padding:2px 6px;border-radius:6px;font-size:.9em;
}
.entry hr{border:0;border-top:1px solid var(--c-line);margin:2.4em 0}
.entry .tip-box{
  margin:1.5em 0;padding:16px 20px;border-radius:14px;
  background:#FFF6EC;border:1px solid rgba(242,178,74,.4);font-size:15.5px;color:#7A5212;
}

/* 空态 */
.empty-state{
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-lg);
  padding:56px 28px;text-align:center;box-shadow:var(--shadow-sm);
}
.empty-state h2{font-size:22px;margin:0 0 12px;padding:0}
.empty-state h2::before{display:none}
.empty-state p{color:var(--c-text-2);font-size:15px;margin:0 0 24px}

/* ============ 文末 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--g-brand);color:#fff;margin-top:26px;
}
.cta-band::before{
  content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.34),transparent 66%);
  top:-280px;right:-120px;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;width:400px;height:400px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22),transparent 68%);
  bottom:-240px;left:-100px;pointer-events:none;
}
.cta-inner{
  position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;
  gap:36px;padding:56px 0;
}
.cta-inner h2{font-size:clamp(21px,2.4vw,27px);line-height:1.45;margin:0 0 10px;letter-spacing:-.01em}
.cta-inner p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.9);max-width:560px;margin:0}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0}

/* ============ 相关内容 ============ */
.related{padding:70px 0 74px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:26px}
.sec-head h2{font-size:clamp(22px,2.4vw,28px);letter-spacing:-.01em;margin:0}
.text-link{
  font-size:14px;font-weight:600;color:var(--c-primary);
  display:inline-flex;align-items:center;gap:6px;transition:color .25s ease;
}
.text-link span{transition:transform .25s ease}
.text-link:hover span{transform:translateX(4px)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(232,80,58,.32)}
.rel-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--c-surface-alt)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px}
.rel-body h3{font-size:16.5px;line-height:1.55;font-weight:700;margin:0}
.rel-meta{font-size:12.5px;color:var(--c-text-3);margin:0}
.back-row{padding-top:28px}
.back-row .text-link{font-size:14px;color:var(--c-text-2)}
.back-row .text-link:hover{color:var(--c-primary)}

/* ============ 页脚 ============ */
.site-footer{background:#14232B;color:#EAF2F4;padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px}
.foot-brand .brand-text{color:#fff}
.foot-brand p{font-size:13.5px;line-height:1.85;color:#A9B8BE;margin:16px 0 18px;max-width:340px}
.foot-badges{display:flex;flex-wrap:wrap;gap:8px}
.foot-badges span{
  font-size:11.5px;padding:4px 10px;border-radius:999px;
  border:1px solid rgba(255,255,255,.16);color:#BCC9CE;
}
.site-footer h4{font-size:14px;margin:0 0 16px;color:#fff;font-weight:600;letter-spacing:.02em}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{font-size:13.5px;color:#A9B8BE;transition:color .25s ease}
.foot-links a:hover{color:var(--c-gold)}
.foot-contact{display:flex;flex-direction:column;gap:10px;font-size:13px;color:#A9B8BE;line-height:1.85}
.foot-contact strong{color:#fff;font-weight:600}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.foot-bottom p{font-size:12px;color:#8A979D;line-height:1.75;max-width:800px;margin:0}
.to-top{font-size:12.5px;color:#BCC9CE;transition:color .25s ease}
.to-top:hover{color:var(--c-gold)}

/* ============ 移动抽屉 ============ */
.mobile-drawer{
  display:none;position:fixed;inset:76px 0 0;z-index:88;
  background:rgba(251,248,244,.95);backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  padding:28px 24px 44px;overflow-y:auto;
  flex-direction:column;gap:24px;
}
.mobile-drawer nav{display:flex;flex-direction:column;gap:20px}
.mobile-drawer nav a{font-size:20px;font-weight:600;color:var(--c-text);transition:color .25s ease}
.mobile-drawer nav a:hover{color:var(--c-primary)}
.drawer-note{font-size:13px;color:var(--c-text-3);line-height:1.8;margin:0}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding-top:36px;padding-bottom:12px}
  .article-aside{display:none}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:48px 0;gap:26px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:900px){
  body{padding-top:68px}
  .header-inner{height:68px;gap:14px}
  .nav-links{display:none}
  .menu-toggle{display:grid}
  .header-actions .btn-sm{display:none}
  .mobile-drawer.is-open{display:flex}
  .brand-text{font-size:14px}
  .article-head{padding:20px 0 28px}
  .entry{font-size:16px;line-height:1.85}
  .entry h2{font-size:21px}
  .entry h3{font-size:18px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .related-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:30px;padding-bottom:34px}
  .cta-inner{padding:42px 0}
  .related{padding:52px 0 58px}
  .sec-head{align-items:center}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:576px){
  .btn{width:100%;padding:14px 20px}
  .btn-sm{width:auto;padding:9px 16px}
  .cta-actions{width:100%;flex-direction:column}
  .head-main h1{font-size:26px}
  .entry{font-size:16px}
  .entry blockquote{padding:14px 16px}
  .article-layout{padding-top:28px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
  .rel-card:hover,.btn:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --c-primary:#E8503A;--c-primary-deep:#C63A26;--c-accent:#0F7C86;--c-accent-soft:#E3F2F1;
  --c-gold:#F2B24A;--c-bg:#FBF8F4;--c-surface:#FFFFFF;--c-surface-alt:#F3EDE6;
  --c-text:#1B2A30;--c-text-2:#5A6B72;--c-text-3:#8A979D;--c-line:#E7DED4;
  --c-success:#2E8B6E;--c-error:#D94A3D;
  --g-brand:linear-gradient(120deg,#E8503A 0%,#F2B24A 100%);
  --g-cool:linear-gradient(135deg,#0F7C86 0%,#3FB6A8 100%);
  --r-sm:12px;--r-md:16px;--r-lg:20px;--r-xl:28px;
  --sh-1:0 8px 24px rgba(27,42,48,.06);
  --sh-2:0 16px 40px rgba(232,80,58,.14);
  --sh-3:0 8px 32px rgba(20,35,43,.14);
  --t:.25s ease;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift","Arial Narrow",Arial,sans-serif;
}
*,*::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:1.75;color:var(--c-text);
  background:var(--c-bg);-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--t)}
a:hover{color:var(--c-primary)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--alt{background:var(--c-surface-alt)}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.08em;color:var(--c-accent);
  background:var(--c-accent-soft);padding:6px 14px;border-radius:999px;font-weight:600;
}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;letter-spacing:-.01em;line-height:1.35}
.sec-head p{margin-top:14px;color:var(--c-text-2);font-size:16px}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.28);
  box-shadow:0 6px 24px rgba(20,35,43,.10);
  transition:background var(--t),box-shadow var(--t),border-color var(--t);
}
.site-header.is-stuck{
  background:rgba(251,248,244,.94);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--c-line);
  box-shadow:0 10px 30px rgba(20,35,43,.12);
}
.header-inner{display:flex;align-items:center;gap:24px;height:76px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--g-brand);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(232,80,58,.32);
}
.brand-mark svg{width:22px;height:22px}
.brand-text{
  font-size:16px;font-weight:700;letter-spacing:-.01em;color:#fff;
  text-shadow:0 1px 8px rgba(20,35,43,.35);white-space:nowrap;
  transition:color var(--t),text-shadow var(--t);
}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-item{
  position:relative;font-size:15px;font-weight:500;color:#fff;padding:8px 14px;border-radius:999px;
  text-shadow:0 1px 6px rgba(20,35,43,.28);transition:color var(--t),background var(--t);
}
.nav-item::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-item:hover{color:#fff;background:rgba(255,255,255,.16)}
.nav-item:hover::after,.nav-item.is-active::after{transform:scaleX(1)}
.nav-item.is-active{font-weight:700}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  color:#fff;border:1px solid rgba(255,255,255,.4);transition:background var(--t),color var(--t),border-color var(--t);
}
.icon-btn:hover{background:rgba(255,255,255,.2)}
.icon-btn svg{width:18px;height:18px}
.site-header.is-stuck .brand-text,.site-header.is-stuck .nav-item,.site-header.is-stuck .icon-btn{color:var(--c-text-2)}
.site-header.is-stuck .brand-text{color:var(--c-text);text-shadow:none}
.site-header.is-stuck .icon-btn{border-color:var(--c-line)}
.site-header.is-stuck .nav-item{text-shadow:none}
.site-header.is-stuck .nav-item:hover{color:var(--c-primary);background:rgba(232,80,58,.08)}
.site-header.is-stuck .nav-item.is-active{color:var(--c-primary)}
.menu-toggle{display:none;width:42px;height:42px;border-radius:12px;align-items:center;justify-content:center;color:#fff;border:1px solid rgba(255,255,255,.4)}
.site-header.is-stuck .menu-toggle{color:var(--c-text);border-color:var(--c-line)}
.menu-toggle svg{width:20px;height:20px}
.mobile-drawer{
  position:fixed;inset:0;z-index:99;padding:100px 24px 40px;
  background:rgba(251,248,244,.94);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  display:flex;flex-direction:column;gap:8px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.mobile-drawer a.drawer-link{
  font-size:20px;font-weight:600;padding:12px 0;border-bottom:1px solid var(--c-line);
}
.mobile-drawer a.drawer-link.is-active{color:var(--c-primary)}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px;padding-top:24px}
.drawer-foot span{font-size:13px;color:var(--c-text-3)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
  border:1px solid transparent;
}
.btn-primary{background:var(--g-brand);background-size:160% 160%;color:#fff;box-shadow:0 8px 22px rgba(232,80,58,.26)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-2);background-position:100% 0;color:#fff}
.btn-outline{border-color:var(--c-primary);color:var(--c-primary);background:transparent}
.btn-outline:hover{background:rgba(232,80,58,.08);transform:translateY(-2px);color:var(--c-primary)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-light{background:#fff;color:var(--c-primary-deep);box-shadow:0 10px 26px rgba(20,35,43,.18)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(20,35,43,.24);color:var(--c-primary-deep)}
.btn-ghost-light{border-color:rgba(255,255,255,.75);color:#fff;background:rgba(255,255,255,.08)}
.btn-ghost-light:hover{background:rgba(255,255,255,.2);transform:translateY(-2px);color:#fff}
.link-arrow{font-size:15px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.link-arrow span{transition:transform var(--t)}
.link-arrow:hover span{transform:translateX(4px)}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;padding:150px 0 88px;color:#fff;
  background:var(--g-brand);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;opacity:.22;mix-blend-mode:multiply;
}
.page-hero::after{
  content:"";position:absolute;width:520px;height:520px;right:-140px;top:-180px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.42),rgba(255,255,255,0) 68%);opacity:.34;
}
.hero-inner{position:relative;z-index:2;max-width:860px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.86);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.86)}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{opacity:.7}
.breadcrumb .current{color:#fff;font-weight:600}
.page-hero .eyebrow{background:rgba(255,255,255,.2);color:#fff}
.page-hero h1{
  font-size:clamp(30px,4.4vw,48px);line-height:1.24;font-weight:700;letter-spacing:-.01em;
  margin:18px 0 18px;text-shadow:0 4px 22px rgba(80,26,12,.26);
}
.hero-sub{font-size:17px;line-height:1.8;color:rgba(255,255,255,.94);max-width:680px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

/* ---------- intro ---------- */
.intro-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-xl);
  box-shadow:var(--sh-1);padding:40px;margin-top:-56px;position:relative;z-index:3;
}
.intro-card p{color:var(--c-text-2);font-size:16.5px;line-height:1.9}
.intro-card p + p{margin-top:16px}
.intro-card strong{color:var(--c-text);font-weight:600}

/* ---------- compare table ---------- */
.table-wrap{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.table-scroll{overflow-x:auto}
table.compare{width:100%;border-collapse:collapse;min-width:640px}
table.compare caption{
  text-align:left;padding:22px 26px 0;font-size:14px;color:var(--c-text-3);
}
table.compare th,table.compare td{padding:18px 26px;text-align:left;font-size:15px;vertical-align:top}
table.compare thead th{
  background:var(--c-surface-alt);color:var(--c-text);font-weight:700;font-size:14px;
  letter-spacing:.02em;border-bottom:1px solid var(--c-line);white-space:nowrap;
}
table.compare tbody tr + tr td{border-top:1px solid var(--c-line)}
table.compare tbody tr:nth-child(even){background:#FCFAF7}
table.compare tbody tr:hover{background:rgba(232,80,58,.05)}
table.compare td:first-child{font-weight:600;color:var(--c-text);width:44%}
table.compare td:last-child{color:var(--c-text-2)}
.tip-line{margin-top:18px;font-size:14px;color:var(--c-text-3)}

/* ---------- badge wall + checklist ---------- */
.badge-wall{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:44px;
}
.data-badge{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:26px 22px;transition:transform var(--t),box-shadow var(--t);
}
.data-badge:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.data-badge .num{
  font-family:var(--font-num);font-size:36px;font-weight:700;line-height:1;
  background:var(--g-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.data-badge .unit{font-family:var(--font-num);font-size:14px;color:var(--c-text-3);margin-left:4px}
.data-badge .label{display:block;margin-top:12px;font-size:13px;font-weight:600;color:var(--c-text)}
.data-badge .desc{display:block;margin-top:6px;font-size:13px;color:var(--c-text-3);line-height:1.6}
.data-badge.cool .num{background:var(--g-cool);-webkit-background-clip:text;background-clip:text;color:transparent}

.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:start}
.checklist{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:12px 26px;
}
.checklist li{
  display:flex;gap:14px;align-items:flex-start;padding:18px 0;font-size:15.5px;color:var(--c-text-2);
  border-bottom:1px solid var(--c-line);line-height:1.7;
}
.checklist li:last-child{border-bottom:0}
.checklist .tick{
  flex:0 0 auto;width:24px;height:24px;border-radius:999px;background:var(--c-accent-soft);
  display:inline-flex;align-items:center;justify-content:center;margin-top:2px;
}
.checklist .tick svg{width:14px;height:14px;stroke:var(--c-accent)}
.checklist li b{color:var(--c-text);font-weight:600}

.photo-card{
  border-radius:var(--r-xl);overflow:hidden;background:var(--c-surface);border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.photo-card figure{margin:0;overflow:hidden;border-radius:0}
.photo-card img{width:100%;height:320px;object-fit:cover;transition:transform .4s ease}
.photo-card:hover img{transform:scale(1.03)}
.photo-card .pc-body{padding:24px 26px}
.photo-card h3{font-size:19px;font-weight:700;margin-bottom:10px}
.photo-card p{font-size:14.5px;color:var(--c-text-2);line-height:1.8}
.photo-card .tag{
  display:inline-block;margin-top:16px;font-size:12px;font-weight:600;color:var(--c-accent);
  background:var(--c-accent-soft);border-radius:999px;padding:5px 12px;
}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow var(--t);
}
.faq-item:hover{box-shadow:0 12px 30px rgba(27,42,48,.09)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  padding:20px 22px;font-size:16px;font-weight:600;color:var(--c-text);
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:999px;border:1px solid var(--c-line);
  position:relative;transition:background var(--t),border-color var(--t),transform var(--t);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-text-2);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform var(--t),background var(--t);
}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px}
.faq-q[aria-expanded="true"] .faq-icon{background:var(--g-brand);border-color:transparent;transform:rotate(180deg)}
.faq-q[aria-expanded="true"] .faq-icon::before,
.faq-q[aria-expanded="true"] .faq-icon::after{background:#fff}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 22px 22px;font-size:15px;color:var(--c-text-2);line-height:1.85}

/* ---------- cta ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--g-brand);padding:88px 0;color:#fff}
.cta-band::before{
  content:"";position:absolute;width:460px;height:460px;left:-120px;bottom:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.34),rgba(255,255,255,0) 70%);opacity:.32;
}
.cta-band::after{
  content:"";position:absolute;width:420px;height:420px;right:-100px;top:-180px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.28),rgba(255,255,255,0) 70%);opacity:.3;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.cta-copy h2{font-size:clamp(24px,2.8vw,34px);line-height:1.32;font-weight:700}
.cta-copy p{margin-top:16px;font-size:16px;color:rgba(255,255,255,.94);line-height:1.85}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:10px;font-size:14.5px;color:rgba(255,255,255,.94)}
.cta-points span{display:flex;gap:10px;align-items:flex-start}
.cta-points i{
  flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:#fff;margin-top:9px;
}
.form-card{
  background:var(--c-surface);border-radius:var(--r-xl);box-shadow:0 24px 56px rgba(20,35,43,.24);
  padding:32px;color:var(--c-text);
}
.form-card h3{font-size:20px;font-weight:700;margin-bottom:6px}
.form-card .form-note{font-size:13px;color:var(--c-text-3);margin-bottom:20px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;font-weight:600;color:var(--c-text-2)}
.field input,.field select,.field textarea{
  height:48px;padding:0 14px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  background:#fff;font-size:15px;transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-text-3) 50%),linear-gradient(135deg,var(--c-text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(232,80,58,.18);
}
.form-card .btn{width:100%;margin-top:20px}
.form-hint{font-size:12px;color:var(--c-text-3);margin-top:12px;line-height:1.7}

/* ---------- footer ---------- */
.site-footer{background:#14232B;color:#F3EDE6;padding:72px 0 0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand .brand-text{color:#fff;text-shadow:none;font-size:15px}
.foot-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:#B9C4C8;max-width:340px}
.foot-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.foot-badges span{
  font-size:12px;padding:5px 12px;border-radius:999px;color:#EADFD2;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
}
.site-footer h4{font-size:14px;font-weight:700;letter-spacing:.04em;margin-bottom:18px;color:#fff}
.foot-links{display:flex;flex-direction:column;gap:12px;font-size:14px}
.foot-links a{color:#B9C4C8}
.foot-links a:hover{color:var(--c-gold)}
.foot-contact{display:flex;flex-direction:column;gap:12px;font-size:13.5px;color:#B9C4C8;line-height:1.8}
.foot-contact strong{color:#fff;font-weight:600}
.foot-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.foot-bottom p{font-size:12px;color:#8A979D;line-height:1.8;max-width:820px}
.to-top{font-size:13px;color:#B9C4C8}
.to-top:hover{color:var(--c-gold)}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .nav-item{padding:8px 10px;font-size:14px}
}
@media (max-width:992px){
  .section{padding:72px 0}
  .page-hero{padding:132px 0 72px}
  .intro-card{padding:30px}
  .badge-wall{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:32px}
  .cta-inner{grid-template-columns:1fr;gap:36px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
  .header-actions .btn-sm{display:none}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .faq-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .photo-card img{height:250px}
  .page-hero h1{font-size:30px}
  table.compare th,table.compare td{padding:14px 16px}
}
@media (max-width:576px){
  .section{padding:56px 0}
  .page-hero{padding:120px 0 60px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .intro-card{margin-top:-40px;padding:24px;border-radius:var(--r-lg)}
  .badge-wall{grid-template-columns:1fr 1fr;gap:12px}
  .data-badge{padding:20px 16px}
  .data-badge .num{font-size:28px}
  .foot-grid{grid-template-columns:1fr}
  .form-card{padding:24px}
  .cta-band{padding:60px 0}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .data-badge:hover,.btn:hover,.photo-card:hover img{transform:none !important}
}

/* roulang page: category2 */
:root{
  --c-primary:#E8503A;
  --c-primary-deep:#C63A26;
  --c-accent:#0F7C86;
  --c-accent-soft:#E3F2F1;
  --c-gold:#F2B24A;
  --c-bg:#FBF8F4;
  --c-surface:#FFFFFF;
  --c-surface-alt:#F3EDE6;
  --c-text:#1B2A30;
  --c-text-2:#5A6B72;
  --c-text-3:#8A979D;
  --c-line:#E7DED4;
  --c-success:#2E8B6E;
  --c-error:#D94A3D;
  --c-ink:#14232B;
  --g-brand:linear-gradient(120deg,#E8503A 0%,#F2B24A 100%);
  --g-cool:linear-gradient(135deg,#0F7C86 0%,#3FB6A8 100%);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:28px;
  --sh-1:0 8px 24px rgba(27,42,48,.06);
  --sh-2:0 16px 40px rgba(232,80,58,.14);
  --sh-3:0 8px 32px rgba(20,35,43,.14);
  --f-main:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --f-num:"DIN Alternate","Bahnschrift","Arial Narrow",sans-serif;
  --t:0.25s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--f-main);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
svg{display:block}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(232,80,58,.18)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:var(--c-surface-alt)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);
  font-weight:700;
  letter-spacing:-0.01em;
  line-height:1.35;
  margin-bottom:14px;
}
.section-head p{color:var(--c-text-2);font-size:16px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--c-accent);
  background:var(--c-accent-soft);
  border-radius:999px;
  padding:6px 14px;
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;border-radius:999px;background:var(--c-accent);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn--primary{
  background:var(--g-brand);
  color:#fff;
  box-shadow:0 10px 24px rgba(232,80,58,.24);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(232,80,58,.3);background:linear-gradient(150deg,#E8503A 0%,#F2B24A 100%)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{
  background:transparent;
  color:var(--c-primary);
  border-color:var(--c-primary);
}
.btn--ghost:hover{background:rgba(232,80,58,.08);transform:translateY(-2px)}
.btn--light{
  background:rgba(255,255,255,.16);
  color:#fff;
  border-color:rgba(255,255,255,.6);
  backdrop-filter:blur(8px);
}
.btn--light:hover{background:rgba(255,255,255,.28)}
.btn--sm{padding:10px 20px;font-size:14px}
.btn--block{width:100%}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:600;
  font-size:14px;
  color:var(--c-primary);
}
.text-link span.arrow{transition:transform var(--t)}
.text-link:hover span.arrow{transform:translateX(4px)}
.text-link:hover{text-decoration:underline;text-underline-offset:4px}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  background:rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.28);
  box-shadow:var(--sh-3);
  transition:background var(--t),box-shadow var(--t),border-color var(--t);
}
.site-header.is-stuck{
  background:rgba(251,248,244,.94);
  border-bottom-color:var(--c-line);
  box-shadow:0 8px 24px rgba(27,42,48,.1);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:76px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  background:var(--g-brand);
  display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(232,80,58,.28);
}
.brand-mark svg{width:22px;height:22px}
.brand-text{
  font-size:15px;
  font-weight:700;
  letter-spacing:-0.01em;
  transition:color var(--t);
}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-item{
  position:relative;
  font-size:15px;
  font-weight:500;
  padding:6px 0;
  color:var(--c-text);
  transition:color var(--t),opacity var(--t);
}
.nav-item:hover{color:var(--c-primary)}
.nav-item.is-active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
}
.site-header:not(.is-stuck) .brand-text,
.site-header:not(.is-stuck) .nav-item,
.site-header:not(.is-stuck) .icon-btn{color:#fff;text-shadow:0 1px 3px rgba(20,35,43,.32)}
.site-header:not(.is-stuck) .nav-item:hover{color:#FFF4E4}
.site-header:not(.is-stuck) .nav-item.is-active::after{background:var(--c-gold)}
.site-header:not(.is-stuck) .icon-btn{border-color:rgba(255,255,255,.5)}
.site-header:not(.is-stuck) .icon-btn:hover{background:rgba(255,255,255,.18)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:transparent;
  color:var(--c-text-2);
  transition:background var(--t),color var(--t),border-color var(--t);
}
.icon-btn:hover{background:rgba(232,80,58,.08);color:var(--c-primary);border-color:rgba(232,80,58,.3)}
.icon-btn svg{width:17px;height:17px}
.menu-toggle{
  display:none;
  width:40px;height:40px;
  border:1px solid var(--c-line);
  border-radius:999px;
  background:transparent;
  padding:0;
  position:relative;
}
.menu-toggle span{
  position:absolute;
  left:11px;right:11px;
  height:2px;
  border-radius:2px;
  background:var(--c-text);
  transition:transform var(--t),opacity var(--t);
}
.site-header:not(.is-stuck) .menu-toggle{border-color:rgba(255,255,255,.5)}
.site-header:not(.is-stuck) .menu-toggle span{background:#fff}
.menu-toggle span:nth-child(1){top:14px}
.menu-toggle span:nth-child(2){top:19px}
.menu-toggle span:nth-child(3){top:24px}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:90;
  display:none;
  background:rgba(251,248,244,.94);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  padding:100px 24px 40px;
  overflow-y:auto;
}
.drawer.is-open{display:block}
.drawer-link{
  display:block;
  font-size:20px;
  font-weight:600;
  padding:16px 0;
  border-bottom:1px solid var(--c-line);
  color:var(--c-text);
  transition:color var(--t),padding-left var(--t);
}
.drawer-link:hover{color:var(--c-primary);padding-left:6px}
.drawer-cta{margin-top:28px}
.drawer-note{margin-top:18px;font-size:13px;color:var(--c-text-3);line-height:1.7}

/* ---------- 页头 KV ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:150px 0 82px;
  color:#fff;
  background:linear-gradient(120deg,#C63A26 0%,#E8503A 46%,#F2B24A 100%);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  opacity:.22;
  mix-blend-mode:luminosity;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:-20% -10%;
  background:
    radial-gradient(circle at 18% 22%,rgba(255,255,255,.35),transparent 42%),
    radial-gradient(circle at 82% 78%,rgba(242,178,74,.4),transparent 46%);
  opacity:.6;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.82);
  margin-bottom:22px;
}
.breadcrumb a{color:rgba(255,255,255,.82);transition:color var(--t)}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{opacity:.6}
.breadcrumb .current{color:#fff;font-weight:600}
.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);
  font-weight:700;
  letter-spacing:-0.01em;
  line-height:1.24;
  max-width:16em;
  margin-bottom:18px;
  text-shadow:0 2px 16px rgba(20,35,43,.18);
}
.page-hero .hero-lead{
  max-width:640px;
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.94);
}
.hero-quick{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:28px;
}
.hero-quick span{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:12px;
  font-weight:600;
  padding:7px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.4);
  backdrop-filter:blur(6px);
}
.hero-quick span::before{
  content:"";
  width:5px;height:5px;border-radius:999px;background:var(--c-gold);
}

/* ---------- 导语 ---------- */
.intro-grid{
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:48px;
  align-items:center;
}
.intro-copy h2{
  font-size:clamp(23px,2.4vw,30px);
  font-weight:700;
  letter-spacing:-0.01em;
  line-height:1.4;
  margin-bottom:18px;
}
.intro-copy p{
  color:var(--c-text-2);
  font-size:16.5px;
  line-height:1.85;
  margin-bottom:16px;
}
.intro-copy p:last-of-type{margin-bottom:0}
.intro-copy strong{color:var(--c-text);font-weight:600}
.figure-card{
  border-radius:24px;
  overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  background:var(--c-surface);
  position:relative;
}
.figure-card img{
  width:100%;
  height:330px;
  object-fit:cover;
  transition:transform .4s ease;
}
.figure-card:hover img{transform:scale(1.03)}
.figure-card figcaption{
  padding:14px 18px;
  font-size:12.5px;
  color:var(--c-text-3);
  line-height:1.6;
  border-top:1px solid var(--c-line);
  background:var(--c-surface);
}
.stat-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
  margin-top:16px;
}
.stat-chip{
  display:flex;
  align-items:center;
  gap:14px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:16px 18px;
  box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t);
}
.stat-chip:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.stat-num{
  font-family:var(--f-num);
  font-size:32px;
  font-weight:700;
  line-height:1;
  letter-spacing:-0.02em;
}
.stat-chip--gold .stat-num{color:var(--c-primary-deep)}
.stat-chip--cool .stat-num{color:var(--c-accent)}
.stat-meta{display:flex;flex-direction:column;gap:2px}
.stat-meta .unit{font-size:13px;font-weight:600;color:var(--c-text)}
.stat-meta .desc{font-size:12px;color:var(--c-text-3);line-height:1.5}

/* ---------- 步骤清单 ---------- */
.step-list{
  display:grid;
  gap:16px;
  max-width:920px;
  margin:0 auto;
}
.step-item{
  position:relative;
  display:grid;
  grid-template-columns:64px 1fr;
  gap:20px;
  padding:24px 28px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.step-item:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-2);
  border-color:rgba(232,80,58,.24);
}
.step-item::before{
  content:"";
  position:absolute;
  left:53px;
  top:-16px;
  width:2px;
  height:16px;
  background:linear-gradient(180deg,rgba(15,124,134,.45),rgba(15,124,134,.05));
}
.step-item:first-child::before{display:none}
.step-num{
  width:56px;height:56px;
  border-radius:999px;
  background:var(--g-cool);
  color:#fff;
  display:grid;place-items:center;
  font-family:var(--f-num);
  font-size:19px;
  font-weight:700;
  letter-spacing:.02em;
  box-shadow:0 8px 18px rgba(15,124,134,.24);
}
.step-body h3{
  font-size:19px;
  font-weight:700;
  line-height:1.45;
  margin-bottom:8px;
  letter-spacing:-0.01em;
}
.step-body p{
  color:var(--c-text-2);
  font-size:15.5px;
  line-height:1.8;
}
.step-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:12px;
}
.tag{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  font-weight:600;
  padding:4px 11px;
  border-radius:999px;
  background:var(--c-accent-soft);
  color:var(--c-accent);
}
.tag--gold{background:rgba(242,178,74,.18);color:#9A6A16}
.tag--muted{background:var(--c-surface-alt);color:var(--c-text-2)}

/* ---------- 提示条 ---------- */
.note-bar{
  max-width:920px;
  margin:26px auto 0;
  display:flex;
  gap:14px;
  align-items:flex-start;
  background:var(--c-accent-soft);
  border-left:3px solid var(--c-accent);
  border-radius:var(--r-sm);
  padding:18px 22px;
  font-size:14.5px;
  line-height:1.8;
  color:#10464C;
}
.note-bar .note-icon{
  flex:0 0 22px;
  width:22px;height:22px;
  border-radius:999px;
  background:var(--c-accent);
  color:#fff;
  display:grid;place-items:center;
  font-size:12px;
  font-weight:700;
  margin-top:2px;
}

/* ---------- 双列要点 ---------- */
.tips-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
}
.tip-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t);
}
.tip-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.tip-card h3{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:700;
  margin-bottom:16px;
}
.tip-card h3 .dot{
  width:10px;height:10px;border-radius:999px;background:var(--g-brand);
}
.tip-card ul{display:grid;gap:10px}
.tip-card li{
  position:relative;
  padding-left:22px;
  font-size:15px;
  color:var(--c-text-2);
  line-height:1.75;
}
.tip-card li::before{
  content:"";
  position:absolute;
  left:2px;top:10px;
  width:7px;height:7px;
  border-radius:999px;
  border:2px solid var(--c-accent);
  background:transparent;
}
.tip-card--warm li::before{border-color:var(--c-primary)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:box-shadow var(--t),border-color var(--t);
}
.faq-item + .faq-item{margin-top:12px}
.faq-item:hover{box-shadow:0 12px 30px rgba(27,42,48,.08)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  transition:color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-icon{
  position:relative;
  flex:0 0 28px;
  width:28px;height:28px;
  border-radius:999px;
  border:1px solid var(--c-line);
  transition:background var(--t),border-color var(--t),transform var(--t);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--c-primary);
  border-radius:2px;
  transition:transform var(--t),opacity var(--t),background var(--t);
}
.faq-icon::before{width:12px;height:2px;transform:translate(-50%,-50%)}
.faq-icon::after{width:2px;height:12px;transform:translate(-50%,-50%)}
.faq-item[open] .faq-icon{background:var(--g-brand);border-color:transparent;transform:rotate(180deg)}
.faq-item[open] .faq-icon::before,
.faq-item[open] .faq-icon::after{background:#fff}
.faq-item[open] .faq-icon::after{opacity:0}
.faq-panel{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-2);
}
.faq-panel p{margin:0}

/* ---------- CTA ---------- */
.cta-section{
  position:relative;
  overflow:hidden;
  padding:88px 0;
  background:var(--g-brand);
  color:#fff;
}
.cta-section::before{
  content:"";
  position:absolute;
  inset:-30%;
  background:
    radial-gradient(circle at 14% 26%,rgba(255,255,255,.3),transparent 40%),
    radial-gradient(circle at 84% 72%,rgba(15,124,134,.35),transparent 44%);
  opacity:.55;
  pointer-events:none;
}
.cta-section .container{position:relative;z-index:2}
.cta-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.cta-copy h2{
  font-size:clamp(24px,2.8vw,34px);
  font-weight:700;
  line-height:1.34;
  letter-spacing:-0.01em;
  margin-bottom:16px;
}
.cta-copy p{
  font-size:16px;
  line-height:1.85;
  color:rgba(255,255,255,.94);
  margin-bottom:22px;
  max-width:480px;
}
.cta-points{display:grid;gap:10px;margin-bottom:8px}
.cta-points li{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14.5px;
  color:rgba(255,255,255,.95);
}
.cta-points li::before{
  content:"";
  width:16px;height:16px;
  flex:0 0 16px;
  border-radius:999px;
  background:rgba(255,255,255,.22);
  border:1px solid rgba(255,255,255,.6);
  background-image:linear-gradient(45deg,transparent 46%,#fff 46%,#fff 54%,transparent 54%);
  background-size:8px 2px;
  background-repeat:no-repeat;
  background-position:center;
}
.form-card{
  background:var(--c-surface);
  border-radius:24px;
  padding:30px;
  box-shadow:0 24px 56px rgba(20,35,43,.24);
  color:var(--c-text);
}
.form-card h3{
  font-size:19px;
  font-weight:700;
  margin-bottom:6px;
}
.form-card .form-hint{
  font-size:13px;
  color:var(--c-text-3);
  margin-bottom:20px;
  line-height:1.7;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field--full{grid-column:1 / -1}
.field label{font-size:13px;font-weight:600;color:var(--c-text-2)}
.field input,
.field select,
.field textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  font-family:inherit;
  font-size:15px;
  color:var(--c-text);
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  transition:border-color var(--t),box-shadow var(--t);
  appearance:none;
}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,var(--c-text-3) 50%),linear-gradient(135deg,var(--c-text-3) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;
  background-size:5px 5px,5px 5px;
  background-repeat:no-repeat;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(232,80,58,.18);
}
.field input::placeholder,
.field textarea::placeholder{color:var(--c-text-3)}
.form-actions{margin-top:20px}
.form-foot{
  margin-top:14px;
  font-size:12px;
  color:var(--c-text-3);
  line-height:1.7;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);
  color:#E9E2D9;
  padding:72px 0 0;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.foot-brand .brand{margin-bottom:16px}
.foot-brand .brand-text{color:#fff}
.foot-brand p{
  font-size:14px;
  line-height:1.85;
  color:#A9B4B9;
  max-width:340px;
  margin-bottom:18px;
}
.foot-badges{display:flex;flex-wrap:wrap;gap:8px}
.foot-badges span{
  font-size:12px;
  padding:5px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  color:#D8CFC4;
}
.site-footer h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.foot-links{display:grid;gap:10px}
.foot-links a{
  font-size:14px;
  color:#A9B4B9;
  transition:color var(--t),padding-left var(--t);
}
.foot-links a:hover{color:var(--c-gold);padding-left:4px}
.foot-contact{display:grid;gap:10px;font-size:14px;color:#A9B4B9;line-height:1.75}
.foot-contact strong{color:#E9E2D9;font-weight:600}
.foot-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.12);
}
.foot-bottom p{
  font-size:12px;
  color:var(--c-text-3);
  line-height:1.7;
  max-width:760px;
}
.to-top{
  font-size:12px;
  color:#A9B4B9;
  border:1px solid rgba(255,255,255,.18);
  border-radius:999px;
  padding:8px 16px;
  transition:color var(--t),border-color var(--t),background var(--t);
}
.to-top:hover{color:var(--c-gold);border-color:rgba(242,178,74,.5);background:rgba(242,178,74,.08)}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .nav-links{gap:18px}
  .brand-text{font-size:14px}
}
@media (max-width:992px){
  .section{padding:76px 0}
  .section--tight{padding:60px 0}
  .nav-links{display:none}
  .header-actions .btn--primary{display:none}
  .menu-toggle{display:inline-block}
  .intro-grid{grid-template-columns:1fr;gap:32px}
  .figure-card img{height:280px}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .page-hero{padding:130px 0 64px}
  .page-hero h1{max-width:100%}
  .tips-grid{grid-template-columns:1fr}
  .step-item{grid-template-columns:1fr;gap:14px;padding:22px}
  .step-item::before{display:none}
  .step-num{width:48px;height:48px;font-size:17px}
  .stat-row{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .form-card{padding:24px}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:576px){
  .container{padding:0 18px}
  .header-inner{height:66px}
  .brand-text{font-size:13px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .page-hero{padding:120px 0 54px}
  .page-hero h1{font-size:30px}
  .page-hero .hero-lead{font-size:15.5px}
  .btn{width:100%;padding:14px 20px}
  .hero-quick .btn,
  .hero-quick span{width:auto}
  .hero-quick{gap:8px}
  .step-body h3{font-size:17.5px}
  .cta-section{padding:64px 0}
  .note-bar{padding:16px 18px}
  .to-top{width:auto}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .step-item:hover,.tip-card:hover,.stat-chip:hover,.btn:hover{transform:none !important}
  .figure-card:hover img{transform:none !important}
}