/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root{
  --ink:#171a2b;
  --ink-2:#3b4258;
  --muted:#6d7390;
  --brand:#3f46b8;
  --brand-2:#2a2f86;
  --brand-soft:#ececfb;
  --brand-line:#d7d8f4;
  --accent:#e08b4c;
  --accent-soft:#fdf0e3;
  --ok:#2f7d5d;
  --ok-soft:#e7f4ee;
  --bg:#f7f6f2;
  --surface:#ffffff;
  --surface-2:#fbfaf8;
  --line:#e6e3dc;
  --line-2:#d8d4ca;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-full:999px;
  --sh-1:0 1px 2px rgba(23,26,43,.05), 0 6px 18px rgba(23,26,43,.05);
  --sh-2:0 10px 30px rgba(23,26,43,.09);
  --sh-3:0 18px 50px rgba(23,26,43,.14);
  --maxw:1200px;
}

/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,opacity .18s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,dl,dt,dd{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px;}
section[id]{scroll-margin-top:118px;}

/* ===================== 容器 ===================== */
.container{width:min(100% - 40px, var(--maxw));margin-inline:auto;}

/* ===================== 头部导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.brandbar{display:flex;align-items:center;gap:18px;padding:12px 0;}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(145deg,var(--brand),var(--brand-2));
  color:#fff;display:grid;place-items:center;
  font-size:19px;font-weight:800;
  box-shadow:0 6px 16px rgba(63,70,184,.3);
}
.logo-text{display:flex;flex-direction:column;line-height:1.22;}
.logo-name{font-size:19px;font-weight:800;letter-spacing:.06em;}
.logo-sub{font-size:11.5px;color:var(--muted);letter-spacing:.06em;}
.searchbar{
  margin-left:auto;display:flex;align-items:center;gap:9px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-full);padding:7px 15px;min-width:236px;max-width:300px;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.searchbar:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft);}
.searchbar svg{flex-shrink:0;color:var(--muted);}
.searchbar input{border:0;outline:0;background:transparent;width:100%;font-size:14px;}
.searchbar input::placeholder{color:#a4a8bd;}
.top-action{
  flex-shrink:0;font-size:14px;font-weight:600;color:#fff;
  background:var(--ink);padding:9px 18px;border-radius:var(--r-full);
  transition:background-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.top-action:hover{background:var(--brand);transform:translateY(-1px);box-shadow:0 8px 20px rgba(63,70,184,.28);}
.chipbar{border-top:1px solid var(--line);}
.chipbar-inner{
  display:flex;align-items:center;gap:8px;padding:9px 0;
  overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;
}
.chipbar-inner::-webkit-scrollbar{display:none;}
.nav-chip{
  flex:0 0 auto;padding:8px 16px;border-radius:var(--r-full);
  font-size:14.5px;font-weight:500;color:var(--ink-2);
  border:1px solid transparent;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.nav-chip:hover{background:var(--surface);border-color:var(--line-2);color:var(--brand);}
.nav-chip.is-active{background:var(--ink);color:#fff;border-color:var(--ink);font-weight:600;}

/* ===================== Hero ===================== */
.hero{
  position:relative;overflow:hidden;padding:56px 0 66px;
  background:
    radial-gradient(880px 380px at 88% -12%, rgba(63,70,184,.11), transparent 70%),
    radial-gradient(700px 340px at 4% 0%, rgba(224,139,76,.12), transparent 72%);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:start;}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:600;color:var(--brand-2);
  background:var(--brand-soft);border:1px solid var(--brand-line);
  padding:6px 15px;border-radius:var(--r-full);
}
.hero-kicker i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:block;}
.hero h1{
  font-size:clamp(27px,3.4vw,43px);line-height:1.32;font-weight:800;
  letter-spacing:-.01em;margin-top:20px;
}
.hero-lead{margin-top:18px;font-size:16.5px;line-height:1.95;color:var(--ink-2);max-width:580px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-full);
  font-size:15.5px;font-weight:600;border:1px solid transparent;
  transition:transform .18s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(63,70,184,.28);}
.btn-primary:hover{background:var(--brand-2);transform:translateY(-2px);box-shadow:0 15px 32px rgba(63,70,184,.34);}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line-2);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn:active{transform:translateY(0);box-shadow:none;}
.btn-sm{padding:9px 20px;font-size:14px;}
.hero-points{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line);}
.hero-points div strong{display:block;font-size:22px;font-weight:800;color:var(--brand-2);letter-spacing:-.01em;}
.hero-points div span{font-size:13px;color:var(--muted);}

/* 演示面板 */
.demo-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-3);overflow:hidden;
}
.demo-head{
  display:flex;align-items:center;gap:8px;padding:13px 18px;
  border-bottom:1px solid var(--line);background:var(--surface-2);
}
.demo-dots{display:flex;gap:6px;}
.demo-dots i{width:9px;height:9px;border-radius:50%;background:var(--line-2);display:block;}
.demo-dots i:first-child{background:#e8b4a0;}
.demo-title{font-size:12.5px;color:var(--muted);margin-left:8px;letter-spacing:.04em;}
.demo-body{padding:16px 18px 20px;}
.f-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:9px 0;border-bottom:1px dashed var(--line);}
.f-row:last-of-type{border-bottom:0;}
.f-label{width:48px;flex-shrink:0;font-size:13px;color:var(--muted);}
.tag{
  font-size:13px;padding:5px 13px;border-radius:var(--r-full);
  background:#f2f1ee;color:var(--ink-2);border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.tag:hover{background:var(--brand-soft);color:var(--brand-2);border-color:var(--brand-line);}
.tag.is-on{background:var(--brand-soft);color:var(--brand-2);border-color:var(--brand-line);font-weight:600;}
.demo-results{margin-top:12px;display:grid;gap:10px;}
.res-item{
  display:flex;align-items:center;gap:12px;padding:10px;
  border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface-2);
  transition:border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.res-item:hover{border-color:var(--brand-line);box-shadow:var(--sh-1);transform:translateY(-1px);}
.res-thumb{width:52px;height:52px;border-radius:12px;flex-shrink:0;}
.res-thumb.a{background:linear-gradient(135deg,#ffd9a8,#f2a3b3 58%,#8f7ce8);}
.res-thumb.b{background:linear-gradient(135deg,#bfe6dc,#79b7c9 55%,#3c568c);}
.res-thumb.c{background:linear-gradient(135deg,#f6c8d6,#e29a76 52%,#6f5aa8);}
.res-main{min-width:0;flex:1;}
.res-name{font-size:14.5px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.res-meta{font-size:12.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.res-slot{font-size:12.5px;color:var(--ok);background:var(--ok-soft);padding:4px 11px;border-radius:var(--r-full);white-space:nowrap;}
.demo-foot{
  margin-top:14px;padding-top:13px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
}
.demo-foot b{color:var(--brand-2);}

/* ===================== 板块通用 ===================== */
.section{padding:66px 0;}
.section.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section.dark{
  background:
    radial-gradient(760px 300px at 82% -20%, rgba(63,70,184,.42), transparent 70%),
    #151824;
  color:#e9eaf3;
}
.section.dark .head h2{color:#fff;}
.section.dark .head p{color:#9aa0bb;}
.section.dark .eyebrow{color:#9aa1ff;}
.head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:32px;margin-bottom:34px;flex-wrap:wrap;
}
.head-main{max-width:760px;}
.eyebrow{font-size:12.5px;font-weight:700;letter-spacing:.16em;color:var(--brand);}
.head h2{
  font-size:clamp(21px,2.4vw,29px);line-height:1.42;font-weight:800;
  margin-top:10px;letter-spacing:-.005em;
}
.head p{font-size:15px;line-height:1.9;color:var(--muted);margin-top:12px;}
.head-link{
  font-size:14px;font-weight:600;color:var(--brand);
  padding:9px 18px;border-radius:var(--r-full);border:1px solid var(--brand-line);
  background:var(--brand-soft);white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.head-link:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-1px);}

/* ===================== 痛点卡 ===================== */
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.pain-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:24px 22px 28px;overflow:hidden;
  transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.pain-card::after{
  content:"";position:absolute;left:22px;right:22px;bottom:0;height:3px;
  border-radius:3px 3px 0 0;background:linear-gradient(90deg,var(--accent),#f3bd80);
  opacity:0;transition:opacity .22s ease;
}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#e2ded4;}
.pain-card:hover::after{opacity:1;}
.pain-num{font-size:12.5px;font-weight:700;color:var(--accent);letter-spacing:.14em;}
.pain-card h3{font-size:17px;font-weight:700;margin:10px 0 8px;}
.pain-card p{font-size:14px;line-height:1.85;color:var(--muted);}

/* ===================== 服务亮点 ===================== */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.feature{
  display:flex;gap:15px;padding:22px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);
  transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.feature:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.feature-ico{
  width:42px;height:42px;border-radius:12px;flex-shrink:0;
  background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;
  transition:background-color .22s ease,color .22s ease;
}
.feature:hover .feature-ico{background:var(--brand);color:#fff;}
.feature h3{font-size:16px;font-weight:700;margin-bottom:7px;}
.feature p{font-size:14px;line-height:1.85;color:var(--muted);}

/* ===================== 场景演示 ===================== */
.scene{
  display:grid;grid-template-columns:1fr 1fr;gap:34px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:34px;box-shadow:var(--sh-1);
}
.scene-steps li{
  display:flex;gap:15px;padding:15px 0;border-bottom:1px dashed var(--line);
}
.scene-steps li:last-child{border-bottom:0;padding-bottom:0;}
.scene-steps li:first-child{padding-top:0;}
.scene-step-n{
  width:28px;height:28px;border-radius:9px;flex-shrink:0;
  background:var(--brand-soft);color:var(--brand-2);
  display:grid;place-items:center;font-size:13px;font-weight:800;
}
.scene-steps h3{font-size:15.5px;font-weight:700;margin-bottom:5px;}
.scene-steps p{font-size:14px;line-height:1.8;color:var(--muted);}
.scene-doc{
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--r-md);padding:22px;
}
.doc-head{
  font-size:13px;font-weight:700;color:var(--brand-2);letter-spacing:.08em;
  padding-bottom:13px;border-bottom:1px solid var(--line);margin-bottom:6px;
}
.doc-list div{
  display:flex;justify-content:space-between;gap:16px;
  padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px;
}
.doc-list div:last-child{border-bottom:0;}
.doc-list dt{color:var(--muted);flex-shrink:0;}
.doc-list dd{color:var(--ink);font-weight:600;text-align:right;}

/* ===================== 档期卡 ===================== */
.slot-rail{
  display:flex;gap:16px;overflow-x:auto;padding:4px 4px 18px;
  scroll-snap-type:x mandatory;scrollbar-width:thin;
}
.slot-rail::-webkit-scrollbar{height:6px;}
.slot-rail::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:99px;}
.slot-card{
  flex:0 0 262px;scroll-snap-align:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px;transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.slot-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.slot-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.slot-avatar{width:44px;height:44px;border-radius:13px;flex-shrink:0;}
.slot-avatar.a{background:linear-gradient(135deg,#ffd6a5,#f0a0b6 60%,#8d7ce6);}
.slot-avatar.b{background:linear-gradient(135deg,#c2e7dd,#7db6c8 55%,#3b5588);}
.slot-avatar.c{background:linear-gradient(135deg,#f7cada,#e39c78 52%,#6d58a6);}
.slot-avatar.d{background:linear-gradient(135deg,#ffe1b8,#d9a06b 55%,#8a5a3c);}
.slot-avatar.e{background:linear-gradient(135deg,#d9e2ff,#9aa6e8 58%,#4a4f9c);}
.slot-name{font-size:15.5px;font-weight:700;}
.slot-skill{font-size:12.5px;color:var(--muted);}
.slot-line{font-size:13.5px;color:var(--ink-2);line-height:1.8;margin-bottom:12px;min-height:50px;}
.slot-badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;color:var(--ok);
  background:var(--ok-soft);padding:5px 12px;border-radius:var(--r-full);
}
.slot-badge i{width:6px;height:6px;border-radius:50%;background:var(--ok);display:block;}
.slot-badge.warm{color:#b06a24;background:var(--accent-soft);}
.slot-badge.warm i{background:var(--accent);}

/* ===================== 团队 ===================== */
.team-list{border-top:1px solid var(--line);}
.team-row{
  display:grid;grid-template-columns:200px 1fr 190px;gap:24px;align-items:center;
  padding:22px 8px;border-bottom:1px solid var(--line);
  transition:background-color .2s ease, padding-left .2s ease;
}
.team-row:hover{background:var(--surface);padding-left:16px;}
.team-role{font-size:16px;font-weight:700;}
.team-role span{display:block;font-size:12.5px;font-weight:500;color:var(--muted);margin-top:3px;}
.team-desc{font-size:14px;line-height:1.85;color:var(--muted);}
.team-taglist{display:flex;flex-wrap:wrap;gap:7px;justify-content:flex-end;}
.mini-tag{
  font-size:12.5px;color:var(--ink-2);background:#f2f1ee;
  padding:5px 12px;border-radius:var(--r-full);
}

/* ===================== 步骤 ===================== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.step{
  padding:28px 24px;border-radius:var(--r-md);border:1px solid var(--line);
  background:linear-gradient(180deg,#ffffff,#fbfaf8);
  transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.step-num{
  font-size:32px;font-weight:800;line-height:1;color:var(--brand);
  opacity:.28;letter-spacing:-.02em;
}
.step h3{font-size:16.5px;font-weight:700;margin:14px 0 8px;}
.step p{font-size:14px;line-height:1.85;color:var(--muted);}

/* ===================== 数据 ===================== */
.stat-strip{
  display:grid;grid-template-columns:repeat(5,1fr);gap:1px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-md);overflow:hidden;
}
.stat{background:#1b1f30;padding:28px 22px;}
.stat strong{
  display:block;font-size:clamp(23px,2.6vw,33px);font-weight:800;
  color:#fff;letter-spacing:-.015em;line-height:1.2;
}
.stat span{display:block;font-size:13px;color:#9aa0bb;margin-top:9px;line-height:1.7;}

/* ===================== 评价 ===================== */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.quote{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;display:flex;flex-direction:column;
  transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.quote:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.quote p{font-size:14.5px;line-height:1.9;color:var(--ink-2);flex:1;}
.quote-foot{display:flex;align-items:center;gap:11px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);}
.avatar{width:38px;height:38px;border-radius:50%;flex-shrink:0;}
.avatar.a{background:linear-gradient(135deg,#ffd7ac,#ea9db4);}
.avatar.b{background:linear-gradient(135deg,#c8e6de,#7fb4c6);}
.avatar.c{background:linear-gradient(135deg,#e2dcff,#9d92e6);}
.quote-name{font-size:14px;font-weight:700;}
.quote-role{font-size:12.5px;color:var(--muted);}

/* ===================== 适用人群 ===================== */
.who{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.who-card{
  border-radius:var(--r-md);padding:28px;border:1px solid var(--line);
  background:var(--surface);
}
.who-card.no{background:var(--surface-2);border-style:dashed;border-color:var(--line-2);}
.who-card h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.who-card > p{font-size:13.5px;color:var(--muted);margin-bottom:16px;}
.who-card li{
  display:flex;gap:11px;padding:11px 0;font-size:14.5px;line-height:1.8;
  color:var(--ink-2);border-bottom:1px dashed var(--line);
}
.who-card li:last-child{border-bottom:0;}
.mark{flex-shrink:0;width:20px;height:20px;border-radius:6px;display:grid;place-items:center;font-size:12px;font-weight:800;margin-top:3px;}
.mark.yes{background:var(--ok-soft);color:var(--ok);}
.mark.no{background:#f1efe9;color:#a09c92;}

/* ===================== 精选清单 ===================== */
.pick-list{border-top:1px solid var(--line);}
.pick-row{
  display:flex;align-items:center;gap:20px;padding:20px 8px;
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease, padding-left .2s ease;
}
.pick-row:hover{background:var(--surface);padding-left:16px;}
.pick-n{
  font-size:15px;font-weight:800;color:var(--brand);
  width:38px;height:38px;border-radius:11px;background:var(--brand-soft);
  display:grid;place-items:center;flex-shrink:0;
}
.pick-main{flex:1;min-width:0;}
.pick-main h3{font-size:15.5px;font-weight:700;}
.pick-main p{font-size:13.5px;color:var(--muted);margin-top:4px;}
.pick-count{font-size:13px;color:var(--muted);white-space:nowrap;}

/* ===================== 频道入口 ===================== */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.channel-card{
  display:block;position:relative;overflow:hidden;
  padding:30px 26px 28px;border-radius:var(--r-lg);
  background:var(--surface);border:1px solid var(--line);
  transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}
.channel-card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:4px;
  background:linear-gradient(90deg,var(--brand),#7f86e0);
  transform:scaleX(0);transform-origin:left;transition:transform .3s ease;
}
.channel-card:hover{transform:translateY(-5px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.channel-card:hover::before{transform:scaleX(1);}
.channel-idx{font-size:12.5px;font-weight:700;letter-spacing:.16em;color:var(--accent);}
.channel-card h3{font-size:19px;font-weight:800;margin:12px 0 10px;}
.channel-card p{font-size:14px;line-height:1.85;color:var(--muted);}
.channel-meta{
  display:flex;gap:14px;flex-wrap:wrap;margin-top:18px;padding-top:16px;
  border-top:1px dashed var(--line);font-size:12.5px;color:var(--muted);
}
.channel-meta b{color:var(--brand-2);font-weight:700;}

/* ===================== 合集目录 ===================== */
.collection-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.collection{
  display:block;padding:20px 22px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);
  transition:background-color .2s ease, border-color .2s ease, transform .2s ease;
}
.collection:hover{background:var(--brand-soft);border-color:var(--brand-line);transform:translateY(-2px);}
.collection h3{font-size:15.5px;font-weight:700;}
.collection p{font-size:13.5px;color:var(--muted);margin-top:6px;line-height:1.8;}
.collection-count{
  display:inline-block;margin-top:13px;font-size:12.5px;font-weight:700;
  color:var(--brand-2);background:#f0f0fc;padding:4px 12px;border-radius:var(--r-full);
}

/* ===================== 资讯 ===================== */
.news-list{display:grid;grid-template-columns:1.35fr 1fr;gap:22px;}
.news-main{
  padding:28px;border-radius:var(--r-lg);background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--sh-1);
}
.news-main h3{font-size:20px;font-weight:800;line-height:1.5;margin:12px 0 10px;}
.news-main p{font-size:14.5px;line-height:1.9;color:var(--muted);}
.news-date{font-size:12.5px;color:var(--accent);font-weight:700;letter-spacing:.1em;}
.news-side li{
  padding:16px 0;border-bottom:1px dashed var(--line);
  transition:padding-left .2s ease;
}
.news-side li:first-child{padding-top:0;}
.news-side li:last-child{border-bottom:0;}
.news-side li:hover{padding-left:8px;}
.news-side h4{font-size:14.8px;font-weight:700;line-height:1.7;}
.news-side span{font-size:12.5px;color:var(--muted);display:block;margin-top:5px;}

/* ===================== 误区 ===================== */
.myth-table{
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;background:var(--surface);
}
.myth-row{
  display:grid;grid-template-columns:1fr 1.3fr;
  border-bottom:1px solid var(--line);
}
.myth-row:last-child{border-bottom:0;}
.myth-row > div{padding:18px 22px;font-size:14.5px;line-height:1.85;}
.myth-wrong{color:var(--muted);background:var(--surface-2);border-right:1px solid var(--line);position:relative;}
.myth-wrong::before{
  content:"误区";display:block;font-size:11.5px;font-weight:800;
  letter-spacing:.14em;color:var(--accent);margin-bottom:6px;
}
.myth-right{color:var(--ink-2);}
.myth-right::before{
  content:"正解";display:block;font-size:11.5px;font-weight:800;
  letter-spacing:.14em;color:var(--brand);margin-bottom:6px;
}

/* ===================== 需求表单 ===================== */
.brief-wrap{
  display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:0;
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-2);background:var(--surface);
}
.brief-side{
  padding:38px 34px;
  background:
    radial-gradient(560px 260px at 100% 0%, rgba(63,70,184,.45), transparent 68%),
    #171a2b;
  color:#e9eaf3;
}
.brief-side .eyebrow{color:#9aa1ff;}
.brief-side h2{font-size:clamp(20px,2.2vw,26px);line-height:1.45;font-weight:800;color:#fff;margin-top:12px;}
.brief-side p{font-size:14.5px;line-height:1.9;color:#a4aac4;margin-top:14px;}
.brief-side ul{margin-top:24px;display:grid;gap:12px;}
.brief-side li{display:flex;gap:11px;font-size:14px;color:#c8ccdd;line-height:1.8;}
.brief-side li i{
  width:20px;height:20px;border-radius:6px;background:rgba(255,255,255,.12);
  color:#fff;display:grid;place-items:center;font-size:11px;font-weight:800;
  flex-shrink:0;margin-top:3px;font-style:normal;
}
.brief-form{padding:38px 34px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-2);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 15px;font-size:14.5px;color:var(--ink);
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-sm);
  outline:0;transition:border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:#a4a8bd;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px var(--brand-soft);
}
.field textarea{min-height:104px;resize:vertical;line-height:1.8;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-note{font-size:13px;color:var(--muted);margin-top:14px;line-height:1.8;}
.brief-form .btn{width:100%;margin-top:6px;}

/* ===================== 页脚 ===================== */
.site-footer{background:#12141f;color:#a4aac4;padding:56px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:36px;}
.footer-brand .logo-name{color:#fff;}
.footer-brand .logo-sub{color:#7b8199;}
.footer-brand p{font-size:14px;line-height:1.9;margin-top:16px;max-width:340px;color:#8f95ad;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.footer-col li{font-size:13.8px;line-height:2.15;color:#8f95ad;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:42px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#767c94;
}

/* ===================== 响应式 ===================== */
@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .pain-grid{grid-template-columns:repeat(2,1fr);}
  .stat-strip{grid-template-columns:repeat(3,1fr);}
  .quote-grid{grid-template-columns:repeat(2,1fr);}
  .channel-grid{grid-template-columns:1fr 1fr;}
  .collection-grid{grid-template-columns:1fr 1fr;}
  .team-row{grid-template-columns:170px 1fr;}
  .team-taglist{grid-column:1 / -1;justify-content:flex-start;}
  .brief-wrap{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:860px){
  .searchbar{display:none;}
  .top-action{margin-left:auto;}
  .scene{grid-template-columns:1fr;gap:26px;padding:26px;}
  .news-list{grid-template-columns:1fr;}
  .who{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .section{padding:52px 0;}
  .hero{padding:42px 0 52px;}
}
@media (max-width:640px){
  .container{width:min(100% - 30px, var(--maxw));}
  .logo-sub{display:none;}
  .logo-name{font-size:17.5px;}
  .pain-grid{grid-template-columns:1fr;}
  .feature-grid{grid-template-columns:1fr;}
  .quote-grid{grid-template-columns:1fr;}
  .channel-grid{grid-template-columns:1fr;}
  .collection-grid{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:1fr 1fr;}
  .stat{padding:20px 18px;}
  .field-row{grid-template-columns:1fr;}
  .brief-side,.brief-form{padding:28px 22px;}
  .hero-points{gap:18px 24px;}
  .myth-row{grid-template-columns:1fr;}
  .myth-wrong{border-right:0;border-bottom:1px solid var(--line);}
  .pick-row{align-items:flex-start;gap:14px;padding:16px 4px;}
  .pick-count{display:none;}
  .head{margin-bottom:26px;}
  .head-link{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-brand p{max-width:none;}
  .scene-doc{padding:18px;}
  .doc-list div{flex-direction:column;gap:4px;}
  .doc-list dd{text-align:left;}
}
@media (max-width:400px){
  .hero h1{font-size:25px;}
  .hero-lead{font-size:15.5px;}
  .btn{padding:12px 20px;font-size:14.5px;}
}

/* roulang page: category3 */
/* ===================== 设计变量 ===================== */
:root{
 --ink:#171a2b;
 --ink-2:#3b4258;
 --muted:#6d7390;
 --brand:#3f46b8;
 --brand-2:#2a2f86;
 --brand-soft:#ececfb;
 --brand-line:#d7d8f4;
 --accent:#e08b4c;
 --accent-soft:#fdf0e3;
 --ok:#2f7d5d;
 --ok-soft:#e7f4ee;
 --bg:#f7f6f2;
 --surface:#ffffff;
 --surface-2:#fbfaf8;
 --line:#e6e3dc;
 --line-2:#d8d4ca;
 --r-xs:6px;
 --r-sm:10px;
 --r-md:16px;
 --r-lg:24px;
 --r-full:999px;
 --sh-1:0 1px 2px rgba(23,26,43,.05), 0 6px 18px rgba(23,26,43,.05);
 --sh-2:0 10px 30px rgba(23,26,43,.09);
 --sh-3:0 18px 50px rgba(23,26,43,.14);
 --maxw:1200px;
}
/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 font-size:16px;
 line-height:1.75;
 color:var(--ink);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,opacity .18s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(63,70,184,.45);outline-offset:2px;border-radius:4px;}
section[id]{scroll-margin-top:126px;}
/* ===================== 容器 ===================== */
.container{width:min(100% - 40px, var(--maxw));margin-inline:auto;}
/* ===================== 头部导航 ===================== */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(247,246,242,.94);
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
 border-bottom:1px solid var(--line);
}
.brandbar{display:flex;align-items:center;gap:18px;padding:12px 0;flex-wrap:wrap;}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.logo-mark{
 width:38px;height:38px;border-radius:11px;
 background:linear-gradient(145deg,var(--brand),var(--brand-2));
 color:#fff;display:grid;place-items:center;
 font-size:19px;font-weight:800;
 box-shadow:0 6px 16px rgba(63,70,184,.3);
}
.logo-text{display:flex;flex-direction:column;line-height:1.22;}
.logo-name{font-size:19px;font-weight:800;letter-spacing:.06em;}
.logo-sub{font-size:11.5px;color:var(--muted);letter-spacing:.06em;}
.searchbar{
 margin-left:auto;display:flex;align-items:center;gap:9px;
 background:var(--surface);border:1px solid var(--line);
 border-radius:var(--r-full);padding:7px 15px;min-width:236px;max-width:300px;
 transition:border-color .2s ease, box-shadow .2s ease;
}
.searchbar:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft);}
.searchbar svg{flex-shrink:0;color:var(--muted);}
.searchbar input{border:0;outline:0;background:transparent;width:100%;font-size:14px;}
.searchbar input::placeholder{color:#a4a8bd;}
.top-action{
 display:inline-flex;align-items:center;justify-content:center;
 padding:10px 20px;border-radius:var(--r-full);
 background:var(--brand);color:#fff;font-size:14.5px;font-weight:600;white-space:nowrap;
 box-shadow:0 8px 20px rgba(63,70,184,.24);
 transition:background-color .2s ease, transform .18s ease, box-shadow .2s ease;
}
.top-action:hover{background:var(--brand-2);transform:translateY(-1px);box-shadow:0 12px 26px rgba(63,70,184,.3);}
.top-action:active{transform:translateY(0);box-shadow:none;}
.chipbar{border-top:1px solid var(--line);}
.chipbar-inner{
 display:flex;align-items:center;gap:8px;padding:9px 0;
 overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;
}
.chipbar-inner::-webkit-scrollbar{display:none;}
.nav-chip{
 flex:0 0 auto;padding:8px 16px;border-radius:var(--r-full);
 font-size:14.5px;font-weight:500;color:var(--ink-2);
 border:1px solid transparent;white-space:nowrap;
 transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.nav-chip:hover{background:var(--surface);border-color:var(--line-2);color:var(--brand);}
.nav-chip.is-active{background:var(--ink);color:#fff;border-color:var(--ink);font-weight:600;}
/* ===================== 内页首屏 ===================== */
.cat-hero{
 position:relative;overflow:hidden;color:#fff;padding:60px 0 34px;
 background:
  radial-gradient(760px 420px at 84% 4%, rgba(224,139,76,.34), transparent 66%),
  radial-gradient(680px 400px at 6% 96%, rgba(63,70,184,.55), transparent 72%),
  linear-gradient(152deg,#191d3d 0%,#272c67 48%,#343b95 100%);
}
.cat-hero::before{
 content:"";position:absolute;inset:0;pointer-events:none;
 background-image:radial-gradient(rgba(255,255,255,.16) 1px, transparent 1px);
 background-size:26px 26px;opacity:.55;
}
.cat-hero::after{
 content:"";position:absolute;right:-90px;top:-80px;width:340px;height:340px;border-radius:50%;
 background:radial-gradient(circle at 30% 30%, rgba(255,255,255,.22), transparent 70%);
 pointer-events:none;
}
.hero-inner{position:relative;z-index:1;}
.crumb{
 display:inline-flex;align-items:center;gap:9px;
 font-size:13px;color:rgba(255,255,255,.72);
 background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
 padding:6px 15px;border-radius:var(--r-full);letter-spacing:.04em;
}
.crumb span{opacity:.55;}
.cat-hero h1{
 font-size:clamp(26px,3.3vw,42px);line-height:1.34;font-weight:800;
 letter-spacing:-.01em;margin-top:22px;max-width:820px;
}
.hero-lead{
 margin-top:18px;font-size:16.5px;line-height:1.95;
 color:rgba(255,255,255,.82);max-width:660px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:13px 26px;border-radius:var(--r-full);
 font-size:15.5px;font-weight:600;border:1px solid transparent;
 transition:transform .18s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(63,70,184,.28);}
.btn-primary:hover{background:var(--brand-2);transform:translateY(-2px);box-shadow:0 15px 32px rgba(63,70,184,.34);}
.btn-light{background:#fff;color:var(--brand-2);box-shadow:0 10px 24px rgba(10,12,30,.25);}
.btn-light:hover{background:#f1f1fb;transform:translateY(-2px);}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line-2);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-outline-light{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.36);}
.btn-outline-light:hover{background:rgba(255,255,255,.16);border-color:#fff;transform:translateY(-2px);}
.btn:active{transform:translateY(0);box-shadow:none;}
.btn-sm{padding:9px 20px;font-size:14px;}
.hero-stats{
 display:flex;flex-wrap:wrap;gap:34px;margin-top:36px;padding-top:24px;
 border-top:1px solid rgba(255,255,255,.2);position:relative;z-index:1;
}
.hero-stats div strong{display:block;font-size:23px;font-weight:800;letter-spacing:-.01em;}
.hero-stats div span{font-size:13px;color:rgba(255,255,255,.7);}
/* 大图上的系列导航条 */
.series-bar{
 position:relative;z-index:1;margin-top:34px;
 display:flex;align-items:center;gap:10px;
 padding:12px 14px;border-radius:var(--r-lg);
 background:rgba(255,255,255,.1);
 border:1px solid rgba(255,255,255,.22);
 backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
 overflow-x:auto;scrollbar-width:none;
}
.series-bar::-webkit-scrollbar{display:none;}
.series-bar::before{
 content:"本分类条目";flex:0 0 auto;font-size:12.5px;letter-spacing:.1em;
 color:rgba(255,255,255,.72);padding-right:10px;margin-right:2px;
 border-right:1px solid rgba(255,255,255,.22);
}
.series-chip{
 flex:0 0 auto;padding:8px 17px;border-radius:var(--r-full);
 font-size:14px;font-weight:500;color:#fff;white-space:nowrap;
 border:1px solid rgba(255,255,255,.28);
 transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.series-chip:hover{background:rgba(255,255,255,.2);border-color:#fff;}
.series-chip.is-on{background:#fff;color:var(--brand-2);border-color:#fff;font-weight:700;}
/* ===================== 板块 ===================== */
.section{padding:74px 0;}
.section-tight{padding:52px 0 74px;}
.section-alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-dark{
 background:linear-gradient(150deg,#1a1e3f 0%,#262a63 55%,#2f3589 100%);
 color:#fff;
}
.section-head{max-width:740px;margin-bottom:38px;}
.section-head.center{margin-inline:auto;text-align:center;}
.eyebrow{
 display:inline-flex;align-items:center;gap:9px;
 font-size:12.5px;font-weight:700;letter-spacing:.16em;
 color:var(--brand);text-transform:uppercase;
}
.section-dark .eyebrow{color:#b9bdf5;}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--accent);}
.section-head.center .eyebrow::before{display:none;}
.sec-title{font-size:clamp(22px,2.4vw,31px);font-weight:800;line-height:1.42;margin-top:14px;letter-spacing:-.01em;}
.sec-sub{margin-top:14px;font-size:15.5px;line-height:1.92;color:var(--ink-2);}
.section-dark .sec-sub{color:rgba(255,255,255,.78);}
/* ===================== 网格 ===================== */
.grid{display:grid;gap:20px;}
.g-2{grid-template-columns:repeat(2,minmax(0,1fr));}
.g-3{grid-template-columns:repeat(3,minmax(0,1fr));}
.g-4{grid-template-columns:repeat(4,minmax(0,1fr));}
/* ===================== 卡片 ===================== */
.card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
 padding:24px;box-shadow:var(--sh-1);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.pain-card{display:flex;flex-direction:column;gap:10px;}
.pain-num{
 font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--accent);
 background:var(--accent-soft);border-radius:var(--r-xs);
 padding:3px 10px;align-self:flex-start;
}
.pain-title{font-size:17.5px;font-weight:700;line-height:1.5;}
.pain-text{font-size:14.8px;line-height:1.9;color:var(--ink-2);}
/* ===================== 条款对照 ===================== */
.terms-layout{display:grid;grid-template-columns:256px minmax(0,1fr);gap:32px;align-items:start;}
.terms-side{
 position:sticky;top:126px;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
 padding:22px;box-shadow:var(--sh-1);
}
.side-title{font-size:13px;letter-spacing:.14em;color:var(--muted);font-weight:700;}
.side-list{margin-top:16px;display:flex;flex-direction:column;gap:4px;}
.side-link{
 display:block;padding:9px 13px;border-radius:var(--r-sm);
 font-size:14.5px;color:var(--ink-2);border-left:2px solid transparent;
 transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.side-link:hover{background:var(--brand-soft);color:var(--brand-2);border-left-color:var(--brand);}
.side-note{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
 font-size:13px;color:var(--muted);line-height:1.8;}
.terms-main{display:flex;flex-direction:column;gap:18px;}
.term-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
 padding:26px;box-shadow:var(--sh-1);
 transition:border-color .2s ease,box-shadow .2s ease;
}
.term-card:hover{border-color:var(--brand-line);box-shadow:var(--sh-2);}
.term-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.term-head h3{font-size:18.5px;font-weight:700;}
.term-body{margin-top:14px;font-size:15px;line-height:1.92;color:var(--ink-2);}
.term-list{margin-top:16px;display:flex;flex-direction:column;gap:9px;}
.term-list li{
 position:relative;padding-left:24px;font-size:14.8px;line-height:1.85;color:var(--ink-2);
}
.term-list li::before{
 content:"";position:absolute;left:6px;top:11px;width:7px;height:7px;border-radius:2px;
 background:var(--brand);opacity:.8;
}
/* ===================== 标签 ===================== */
.tag{
 display:inline-flex;align-items:center;
 font-size:12.5px;padding:5px 13px;border-radius:var(--r-full);
 background:#f2f1ee;color:var(--ink-2);border:1px solid transparent;
 transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.tag:hover{background:var(--brand-soft);color:var(--brand-2);border-color:var(--brand-line);}
.tag-brand{background:var(--brand-soft);color:var(--brand-2);border-color:var(--brand-line);}
.tag-accent{background:var(--accent-soft);color:#a45f24;}
.tag-ok{background:var(--ok-soft);color:var(--ok);}
/* ===================== 流程步骤 ===================== */
.flow{display:grid;grid-template-columns:repeat(auto-fit,minmax(228px,1fr));gap:18px;}
.flow-step{
 position:relative;background:var(--surface);border:1px solid var(--line);
 border-radius:var(--r-md);padding:24px 22px;box-shadow:var(--sh-1);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.step-num{
 display:inline-grid;place-items:center;width:34px;height:34px;border-radius:10px;
 background:var(--brand-soft);color:var(--brand-2);font-weight:800;font-size:15px;
 border:1px solid var(--brand-line);
}
.step-title{margin-top:14px;font-size:16.5px;font-weight:700;line-height:1.5;}
.step-text{margin-top:9px;font-size:14.5px;line-height:1.88;color:var(--ink-2);}
/* ===================== 数据条 ===================== */
.stat-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
 padding:24px;box-shadow:var(--sh-1);
}
.stat-num{font-size:30px;font-weight:800;color:var(--brand-2);letter-spacing:-.02em;line-height:1.2;}
.stat-label{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.7;}
.bars{margin-top:34px;display:flex;flex-direction:column;gap:20px;}
.bar-row{display:grid;grid-template-columns:190px minmax(0,1fr) 62px;align-items:center;gap:18px;}
.bar-row .bar-name{font-size:14.5px;color:var(--ink-2);}
.bar-track{height:9px;border-radius:var(--r-full);background:#eceae4;overflow:hidden;}
.bar-fill{height:100%;border-radius:var(--r-full);background:linear-gradient(90deg,var(--brand),#6a70d8);}
.bar-fill.alt{background:linear-gradient(90deg,var(--accent),#eeb27f);}
.bar-val{font-size:14px;font-weight:700;color:var(--brand-2);text-align:right;}
/* ===================== 证言 ===================== */
.quote-card{
 background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);
 border-radius:var(--r-md);padding:26px 24px;box-shadow:var(--sh-1);
 transition:transform .2s ease,box-shadow .2s ease;
}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.quote-text{font-size:15.2px;line-height:1.95;color:var(--ink-2);}
.quote-meta{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);display:flex;flex-direction:column;gap:3px;}
.quote-meta strong{font-size:15px;font-weight:700;}
.quote-meta span{font-size:13px;color:var(--muted);}
/* ===================== 适用人群 ===================== */
.who-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
 padding:22px;box-shadow:var(--sh-1);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.who-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.who-icon{
 width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
 background:var(--brand-soft);color:var(--brand-2);font-weight:800;font-size:15px;
 border:1px solid var(--brand-line);
}
.who-card h3{margin-top:14px;font-size:16.5px;font-weight:700;}
.who-card p{margin-top:9px;font-size:14.5px;line-height:1.88;color:var(--ink-2);}
/* ===================== 条目速查列表 ===================== */
.journal-list{display:flex;flex-direction:column;gap:12px;}
.journal-item{
 display:grid;grid-template-columns:132px minmax(0,1fr) 92px;gap:22px;align-items:center;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
 padding:20px 24px;box-shadow:var(--sh-1);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.journal-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.ji-tag{font-size:12.5px;color:var(--brand-2);background:var(--brand-soft);border:1px solid var(--brand-line);
 border-radius:var(--r-full);padding:4px 12px;justify-self:start;white-space:nowrap;}
.ji-title{font-size:16.5px;font-weight:700;line-height:1.55;}
.ji-desc{margin-top:7px;font-size:14.3px;line-height:1.85;color:var(--ink-2);}
.ji-meta{font-size:13px;color:var(--muted);text-align:right;}
/* ===================== 深色指标区 ===================== */
.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:18px;}
.metric-item{
 border:1px solid rgba(255,255,255,.2);border-radius:var(--r-md);
 background:rgba(255,255,255,.07);padding:24px;
 transition:background-color .2s ease,transform .2s ease;
}
.metric-item:hover{background:rgba(255,255,255,.13);transform:translateY(-3px);}
.metric-num{font-size:28px;font-weight:800;letter-spacing:-.02em;}
.metric-label{margin-top:8px;font-size:13.8px;color:rgba(255,255,255,.76);line-height:1.75;}
/* ===================== 转化区 ===================== */
.cta{padding:76px 0;}
.cta-panel{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
 box-shadow:var(--sh-3);padding:44px;
 display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:44px;
}
.cta-panel h2{font-size:clamp(21px,2.2vw,28px);font-weight:800;line-height:1.45;}
.cta-panel p{margin-top:16px;font-size:15.2px;line-height:1.92;color:var(--ink-2);}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:11px;}
.cta-points li{position:relative;padding-left:24px;font-size:14.6px;color:var(--ink-2);line-height:1.85;}
.cta-points li::before{
 content:"";position:absolute;left:5px;top:10px;width:8px;height:8px;border-radius:50%;
 background:var(--accent);
}
.form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13.6px;font-weight:600;color:var(--ink-2);}
.field input,.field select,.field textarea{
 width:100%;padding:12px 14px;border:1px solid var(--line-2);border-radius:var(--r-sm);
 background:var(--surface-2);font-size:14.6px;
 transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.8;}
.field input:focus,.field select:focus,.field textarea:focus{
 outline:0;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px var(--brand-soft);
}
.form-note{grid-column:1 / -1;font-size:13px;color:var(--muted);line-height:1.8;}
.form .btn{grid-column:1 / -1;justify-self:start;}
/* ===================== 页脚 ===================== */
.site-footer{
 background:#14162c;color:rgba(255,255,255,.78);
 padding:56px 0 26px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-name{color:#fff;}
.footer-brand .logo-sub{color:rgba(255,255,255,.55);}
.footer-brand p{font-size:14.3px;line-height:1.9;color:rgba(255,255,255,.66);max-width:340px;}
.footer-col h4{font-size:14.5px;font-weight:700;color:#fff;margin:0 0 16px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:14px;color:rgba(255,255,255,.66);line-height:1.75;}
.footer-col a{color:rgba(255,255,255,.66);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
 margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
 display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
 font-size:13px;color:rgba(255,255,255,.52);
}
/* ===================== 响应式 ===================== */
@media (max-width:1024px){
 .hero-grid,.cta-panel{grid-template-columns:1fr;}
 .terms-layout{grid-template-columns:1fr;gap:24px;}
 .terms-side{position:static;}
 .g-4{grid-template-columns:repeat(2,minmax(0,1fr));}
 .g-3{grid-template-columns:repeat(2,minmax(0,1fr));}
 .footer-grid{grid-template-columns:1fr 1fr;}
 .cta-panel{padding:34px;}
}
@media (max-width:768px){
 .brandbar{gap:12px;padding:12px 0 10px;}
 .searchbar{order:3;margin-left:0;max-width:none;width:100%;min-width:0;}
 .top-action{margin-left:auto;}
 .section{padding:56px 0;}
 .section-tight{padding:40px 0 56px;}
 .cat-hero{padding:44px 0 28px;}
 .hero-stats{gap:22px;}
 .bar-row{grid-template-columns:1fr;gap:8px;}
 .bar-val{text-align:left;}
 .journal-item{grid-template-columns:1fr;gap:12px;}
 .ji-meta{text-align:left;}
 .form{grid-template-columns:1fr;}
 .cta{padding:56px 0;}
}
@media (max-width:520px){
 .container{width:min(100% - 28px, var(--maxw));}
 .logo-sub{display:none;}
 .g-2,.g-3,.g-4{grid-template-columns:1fr;}
 .flow{grid-template-columns:1fr;}
 .hero-actions{gap:10px;}
 .hero-actions .btn{width:100%;}
 .cta-panel{padding:24px;}
 .form .btn{width:100%;}
 .footer-grid{grid-template-columns:1fr;gap:26px;}
 .hero-stats div strong{font-size:20px;}
 .stat-num{font-size:26px;}
}

/* roulang page: category2 */
:root{
 --ink:#171a2b;
 --ink-2:#3b4258;
 --muted:#6d7390;
 --brand:#3f46b8;
 --brand-2:#2a2f86;
 --brand-soft:#ececfb;
 --brand-line:#d7d8f4;
 --accent:#e08b4c;
 --accent-soft:#fdf0e3;
 --ok:#2f7d5d;
 --ok-soft:#e7f4ee;
 --bg:#f7f6f2;
 --surface:#ffffff;
 --surface-2:#fbfaf8;
 --line:#e6e3dc;
 --line-2:#d8d4ca;
 --r-xs:6px;
 --r-sm:10px;
 --r-md:16px;
 --r-lg:24px;
 --r-full:999px;
 --sh-1:0 1px 2px rgba(23,26,43,.05), 0 6px 18px rgba(23,26,43,.05);
 --sh-2:0 10px 30px rgba(23,26,43,.09);
 --sh-3:0 18px 50px rgba(23,26,43,.14);
 --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,opacity .18s ease,transform .18s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:var(--r-xs);}
section[id]{scroll-margin-top:118px;}
.container{width:min(100% - 40px, var(--maxw));margin-inline:auto;}

/* ===================== 头部导航 ===================== */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(247,246,242,.94);
 backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
 border-bottom:1px solid var(--line);
}
.brandbar{display:flex;align-items:center;gap:18px;padding:12px 0;}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.logo-mark{
 width:38px;height:38px;border-radius:11px;
 background:linear-gradient(145deg,var(--brand),var(--brand-2));
 color:#fff;display:grid;place-items:center;font-size:19px;font-weight:800;
 box-shadow:0 6px 16px rgba(63,70,184,.3);
}
.logo-text{display:flex;flex-direction:column;line-height:1.22;}
.logo-name{font-size:19px;font-weight:800;letter-spacing:.06em;}
.logo-sub{font-size:11.5px;color:var(--muted);letter-spacing:.06em;}
.searchbar{
 margin-left:auto;display:flex;align-items:center;gap:9px;
 background:var(--surface);border:1px solid var(--line);
 border-radius:var(--r-full);padding:7px 15px;min-width:236px;max-width:300px;
 transition:border-color .2s ease, box-shadow .2s ease;
}
.searchbar:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft);}
.searchbar svg{flex-shrink:0;color:var(--muted);}
.searchbar input{border:0;outline:0;background:transparent;width:100%;font-size:14px;}
.searchbar input::placeholder{color:#a4a8bd;}
.top-action{
 flex-shrink:0;padding:9px 18px;border-radius:var(--r-full);
 background:var(--ink);color:#fff;font-size:14px;font-weight:600;white-space:nowrap;
 transition:background-color .2s ease, transform .18s ease, box-shadow .2s ease;
}
.top-action:hover{background:var(--brand);transform:translateY(-1px);box-shadow:0 8px 20px rgba(63,70,184,.28);}
.top-action:active{transform:translateY(0);}
.chipbar{border-top:1px solid var(--line);}
.chipbar-inner{
 display:flex;align-items:center;gap:8px;padding:9px 0;
 overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;
}
.chipbar-inner::-webkit-scrollbar{display:none;}
.nav-chip{
 flex:0 0 auto;padding:8px 16px;border-radius:var(--r-full);
 font-size:14.5px;font-weight:500;color:var(--ink-2);
 border:1px solid transparent;white-space:nowrap;
 transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.nav-chip:hover{background:var(--surface);border-color:var(--line-2);color:var(--brand);}
.nav-chip.is-active{background:var(--ink);color:#fff;border-color:var(--ink);font-weight:600;}

/* ===================== 按钮 / 标签 ===================== */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:13px 26px;border-radius:var(--r-full);
 font-size:15.5px;font-weight:600;border:1px solid transparent;
 transition:transform .18s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(63,70,184,.28);}
.btn-primary:hover{background:var(--brand-2);transform:translateY(-2px);box-shadow:0 15px 32px rgba(63,70,184,.34);}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line-2);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn:active{transform:translateY(0);box-shadow:none;}
.btn-sm{padding:9px 20px;font-size:14px;}
.tag{
 display:inline-block;font-size:13px;padding:5px 13px;border-radius:var(--r-full);
 background:#f2f1ee;color:var(--ink-2);border:1px solid transparent;
 transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.tag:hover{background:var(--brand-soft);color:var(--brand-2);border-color:var(--brand-line);}
.tag.is-on{background:var(--brand-soft);color:var(--brand-2);border-color:var(--brand-line);font-weight:600;}

/* ===================== 分类页深色首屏 ===================== */
.cat-hero{
 position:relative;overflow:hidden;color:#fff;padding:50px 0 62px;
 background:
  radial-gradient(760px 420px at 88% -20%, rgba(224,139,76,.24), transparent 68%),
  radial-gradient(600px 360px at 6% 110%, rgba(63,70,184,.5), transparent 72%),
  linear-gradient(150deg,#1b1e35 0%,#262a63 60%,#31377f 100%);
}
.cat-hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:48px;align-items:start;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6);}
.crumb a:hover{color:#fff;}
.hero-kicker{
 display:inline-flex;align-items:center;gap:8px;margin-top:22px;
 font-size:13px;font-weight:600;color:#ffd9b4;
 background:rgba(224,139,76,.16);border:1px solid rgba(224,139,76,.42);
 padding:6px 15px;border-radius:var(--r-full);
}
.hero-kicker i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:block;}
.cat-hero h1{font-size:clamp(26px,3.2vw,40px);line-height:1.34;font-weight:800;letter-spacing:-.01em;margin-top:18px;}
.cat-hero .lead{margin-top:18px;font-size:16px;line-height:1.95;color:rgba(255,255,255,.78);max-width:600px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px;}
.hero-tags .tag{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.2);color:rgba(255,255,255,.9);}
.hero-tags .tag:hover{background:rgba(255,255,255,.2);color:#fff;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.cat-hero .btn-primary{background:var(--accent);color:#231603;box-shadow:0 12px 26px rgba(224,139,76,.32);}
.cat-hero .btn-primary:hover{background:#f0a367;}
.cat-hero .btn-ghost{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.3);color:#fff;}
.cat-hero .btn-ghost:hover{background:rgba(255,255,255,.18);border-color:#fff;color:#fff;}
.rank-panel{
 background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
 border-radius:var(--r-lg);padding:22px 24px;
 box-shadow:var(--sh-3);backdrop-filter:blur(6px);
}
.rank-head{display:flex;justify-content:space-between;align-items:baseline;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.14);}
.rank-head strong{font-size:15.5px;letter-spacing:.02em;color:#fff;}
.rank-head span{font-size:12.5px;color:rgba(255,255,255,.55);}
.rank-row{padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.13);}
.rank-row:last-child{border-bottom:0;padding-bottom:2px;}
.rank-top{display:flex;justify-content:space-between;font-size:14px;color:rgba(255,255,255,.9);margin-bottom:7px;}
.rank-top em{font-style:normal;color:rgba(255,255,255,.55);font-size:12.5px;}
.rank-bar{height:6px;border-radius:var(--r-full);background:rgba(255,255,255,.12);overflow:hidden;}
.rank-bar i{display:block;height:100%;width:var(--w,50%);border-radius:var(--r-full);background:linear-gradient(90deg,#e08b4c,#f2bd8e);}
.rank-bar i.is-blue{background:linear-gradient(90deg,#7f86ef,#b3b7f6);}
.rank-foot{margin-top:16px;padding-top:14px;border-top:1px solid rgba(255,255,255,.14);font-size:12.5px;color:rgba(255,255,255,.55);line-height:1.8;}

/* ===================== 通用板块 ===================== */
.section{padding:66px 0;}
.section-alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-dark{
 background:
  radial-gradient(700px 340px at 92% -10%, rgba(63,70,184,.4), transparent 70%),
  linear-gradient(155deg,#1b1e35,#242a5c);
 color:#fff;
}
.section-head{max-width:760px;}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.16em;color:var(--brand);}
.section-head h2{font-size:clamp(22px,2.4vw,31px);line-height:1.4;font-weight:800;margin-top:12px;letter-spacing:-.01em;}
.section-head p{margin-top:14px;font-size:15.5px;line-height:1.95;color:var(--ink-2);}
.section-dark .eyebrow{color:#f2bd8e;}
.section-dark .section-head h2{color:#fff;}
.section-dark .section-head p{color:rgba(255,255,255,.74);}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* 痛点 */
.pain-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:36px;}
.pain-item{
 display:flex;gap:16px;background:var(--surface);border:1px solid var(--line);
 border-radius:var(--r-md);padding:22px 24px;box-shadow:var(--sh-1);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pain-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.pain-num{
 width:34px;height:34px;flex:0 0 34px;border-radius:10px;
 background:var(--accent-soft);color:#b1672d;
 display:grid;place-items:center;font-weight:800;font-size:15px;
}
.pain-item h3{font-size:17px;margin-bottom:8px;}
.pain-item p{font-size:14.5px;line-height:1.85;color:var(--muted);}

/* 四维对照 */
.dim-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:38px;}
.dim-card{
 display:flex;flex-direction:column;gap:12px;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
 padding:24px 22px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.dim-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.dim-icon{
 width:42px;height:42px;border-radius:12px;background:var(--brand-soft);
 color:var(--brand);display:grid;place-items:center;font-weight:800;font-size:16px;
}
.dim-card h3{font-size:17px;}
.dim-card p{font-size:14.5px;line-height:1.85;color:var(--muted);}
.dim-card .tag{align-self:flex-start;margin-top:auto;}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;margin-top:38px;}
.step{
 position:relative;background:var(--surface);border:1px solid var(--line);
 border-radius:var(--r-md);padding:24px 20px 22px;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.step-no{
 display:inline-grid;place-items:center;width:30px;height:30px;border-radius:9px;
 background:var(--ink);color:#fff;font-size:13.5px;font-weight:700;margin-bottom:14px;
}
.step h3{font-size:16px;margin-bottom:9px;}
.step p{font-size:14px;line-height:1.8;color:var(--muted);}

/* 数据 + 证言 */
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:36px;}
.metric{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-md);padding:24px 22px;}
.metric strong{display:block;font-size:32px;font-weight:800;letter-spacing:-.02em;line-height:1.2;}
.metric strong em{font-style:normal;font-size:16px;font-weight:600;margin-left:3px;color:rgba(255,255,255,.72);}
.metric span{display:block;margin-top:8px;font-size:13.5px;color:rgba(255,255,255,.68);line-height:1.75;}
.quotes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:26px;}
.quote{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.13);border-radius:var(--r-md);padding:24px 22px;}
.quote p{font-size:15px;line-height:1.9;color:rgba(255,255,255,.86);}
.quote .who{display:flex;align-items:center;gap:11px;margin-top:18px;font-size:13px;color:rgba(255,255,255,.6);}
.avatar{
 width:34px;height:34px;flex:0 0 34px;border-radius:50%;
 background:linear-gradient(145deg,#e08b4c,#b1672d);
 display:grid;place-items:center;font-size:13px;font-weight:700;color:#fff;
}

/* 适用人群 */
.aud-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:36px;}
.aud-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
 padding:24px 22px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.aud-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.aud-card h3{font-size:17px;margin-bottom:8px;}
.aud-card > p{font-size:14.5px;line-height:1.85;color:var(--muted);}
.aud-card ul{margin-top:14px;display:grid;gap:7px;}
.aud-card li{position:relative;padding-left:16px;font-size:14px;color:var(--ink-2);}
.aud-card li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--brand-line);}

/* 分类入口 */
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:36px;}
.channel{
 display:flex;flex-direction:column;gap:12px;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
 padding:24px 22px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand);}
.channel .ch-head{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:17px;font-weight:700;}
.channel .arrow{color:var(--brand);font-weight:700;transition:transform .2s ease;}
.channel:hover .arrow{transform:translateX(4px);}
.channel p{font-size:14.5px;line-height:1.85;color:var(--muted);}
.channel .tag{align-self:flex-start;}

/* 图鉴条目 + 侧栏 */
.archive{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;margin-top:36px;align-items:start;}
.topic-list{display:grid;gap:14px;}
.topic{
 display:grid;grid-template-columns:96px minmax(0,1fr);gap:20px;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
 padding:20px 22px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.topic:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.topic-thumb{border-radius:var(--r-sm);aspect-ratio:4/3;border:1px solid var(--line);}
.t1{background:linear-gradient(135deg,#eaf3ee,#cfe3d7);}
.t2{background:linear-gradient(135deg,#f3eee6,#dbcdbb);}
.t3{background:linear-gradient(135deg,#ececfb,#c9caf4);}
.t4{background:linear-gradient(135deg,#fdf0e3,#f2c89c);}
.t5{background:linear-gradient(135deg,#e9eef6,#c2cfe4);}
.t6{background:linear-gradient(135deg,#f1eaf3,#d6c2dd);}
.topic h3{font-size:16.5px;margin-bottom:8px;}
.topic p{font-size:14.5px;line-height:1.85;color:var(--muted);}
.topic-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:22px 20px;}
.side-card + .side-card{margin-top:18px;}
.side-card h3{font-size:15.5px;margin-bottom:14px;}
.side-list{display:grid;gap:11px;}
.side-list li{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--ink-2);padding-bottom:10px;border-bottom:1px dashed var(--line);}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list em{font-style:normal;color:var(--muted);font-size:13px;}
.cloud{display:flex;flex-wrap:wrap;gap:8px;}

/* 动态时间线 */
.timeline{margin-top:36px;}
.tl-item{display:grid;grid-template-columns:130px minmax(0,1fr);gap:24px;padding:20px 0;border-bottom:1px dashed var(--line);}
.tl-item:first-child{border-top:1px dashed var(--line);}
.tl-date{font-size:13.5px;font-weight:700;color:var(--brand);letter-spacing:.02em;}
.tl-item h3{font-size:16.5px;margin-bottom:7px;}
.tl-item p{font-size:14.5px;line-height:1.85;color:var(--muted);}

/* 转化区 */
.cta-band{
 background:
  radial-gradient(620px 320px at 96% 0%, rgba(224,139,76,.16), transparent 70%),
  linear-gradient(140deg,#ececfb,#f7f6f2 62%);
 border-top:1px solid var(--brand-line);
}
.cta-grid{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:46px;align-items:start;}
.cta-points{display:grid;gap:12px;margin-top:26px;}
.cta-points li{display:flex;gap:11px;font-size:15px;color:var(--ink-2);line-height:1.8;}
.cta-points li::before{
 content:"✓";flex:0 0 22px;height:22px;margin-top:3px;border-radius:50%;
 background:var(--ok-soft);color:var(--ok);font-size:12.5px;font-weight:700;
 display:grid;place-items:center;
}
.brief-form{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-2);}
.brief-form h3{font-size:19px;margin-bottom:8px;}
.form-note{font-size:14px;color:var(--muted);margin-bottom:20px;line-height:1.8;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:grid;gap:7px;margin-bottom:16px;}
.field label{font-size:13.5px;font-weight:600;color:var(--ink-2);}
.field input,.field select,.field textarea{
 width:100%;border:1px solid var(--line-2);border-radius:var(--r-sm);
 padding:11px 14px;font-size:14.5px;background:var(--surface-2);outline:0;
 transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{resize:vertical;line-height:1.75;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--line-2);}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px var(--brand-soft);}
.field input::placeholder,.field textarea::placeholder{color:#a4a8bd;}
.brief-form .btn{width:100%;margin-top:4px;}
.form-foot{margin-top:14px;font-size:13px;color:var(--muted);text-align:center;}

/* ===================== 页脚 ===================== */
.site-footer{background:#14162a;color:rgba(255,255,255,.78);padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}
.site-footer .logo-name{color:#fff;}
.site-footer .logo-sub{color:rgba(255,255,255,.5);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:360px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:14px;}
.footer-col ul{display:grid;gap:9px;}
.footer-col li{font-size:14px;color:rgba(255,255,255,.62);}
.footer-col a{font-size:14px;color:rgba(255,255,255,.62);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
 margin-top:42px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
 font-size:13px;color:rgba(255,255,255,.5);
}

/* ===================== 响应式 ===================== */
@media (max-width:1024px){
 .cat-hero-grid{grid-template-columns:1fr;gap:38px;}
 .dim-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
 .metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
 .quotes{grid-template-columns:1fr;}
 .aud-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .channel-grid{grid-template-columns:1fr;}
 .archive{grid-template-columns:1fr;}
 .cta-grid{grid-template-columns:1fr;gap:32px;}
}
@media (max-width:768px){
 .brandbar{flex-wrap:wrap;gap:12px;}
 .searchbar{margin-left:0;order:3;max-width:none;width:100%;min-width:0;}
 .top-action{order:2;margin-left:auto;}
 .section{padding:50px 0;}
 .cat-hero{padding:38px 0 48px;}
 .pain-grid{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
 .section-head{max-width:none;}
}
@media (max-width:520px){
 .dim-grid,.steps,.metrics,.aud-grid{grid-template-columns:1fr;}
 .form-row{grid-template-columns:1fr;}
 .tl-item{grid-template-columns:1fr;gap:8px;}
 .topic{grid-template-columns:1fr;}
 .topic-thumb{aspect-ratio:16/6;}
 .footer-grid{grid-template-columns:1fr;}
 .hero-actions .btn{width:100%;}
 .cat-hero h1{font-size:24px;}
 .quote .who{flex-wrap:wrap;}
}

/* roulang page: category1 */
/* ===================== 设计变量 ===================== */
:root{
  --ink:#171a2b;
  --ink-2:#3b4258;
  --muted:#6d7390;
  --brand:#3f46b8;
  --brand-2:#2a2f86;
  --brand-soft:#ececfb;
  --brand-line:#d7d8f4;
  --accent:#e08b4c;
  --accent-soft:#fdf0e3;
  --ok:#2f7d5d;
  --ok-soft:#e7f4ee;
  --bg:#f7f6f2;
  --surface:#ffffff;
  --surface-2:#fbfaf8;
  --line:#e6e3dc;
  --line-2:#d8d4ca;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-full:999px;
  --sh-1:0 1px 2px rgba(23,26,43,.05), 0 6px 18px rgba(23,26,43,.05);
  --sh-2:0 10px 30px rgba(23,26,43,.09);
  --sh-3:0 18px 50px rgba(23,26,43,.14);
  --maxw:1200px;
}
/* ===================== reset / base ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
h1,h2,h3,h4,h5,p,figure{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,opacity .18s ease,transform .18s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:var(--r-xs);}
section[id]{scroll-margin-top:126px;}
/* ===================== 容器 ===================== */
.container{width:min(100% - 40px, var(--maxw));margin-inline:auto;}
/* ===================== 头部导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.brandbar{display:flex;align-items:center;gap:18px;padding:12px 0;}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(145deg,var(--brand),var(--brand-2));
  color:#fff;display:grid;place-items:center;
  font-size:19px;font-weight:800;
  box-shadow:0 6px 16px rgba(63,70,184,.3);
}
.logo-text{display:flex;flex-direction:column;line-height:1.22;}
.logo-name{font-size:19px;font-weight:800;letter-spacing:.06em;}
.logo-sub{font-size:11.5px;color:var(--muted);letter-spacing:.06em;}
.searchbar{
  margin-left:auto;display:flex;align-items:center;gap:9px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-full);padding:7px 15px;min-width:236px;max-width:300px;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.searchbar:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft);}
.searchbar svg{flex-shrink:0;color:var(--muted);}
.searchbar input{border:0;outline:0;background:transparent;width:100%;font-size:14px;}
.searchbar input::placeholder{color:#a4a8bd;}
.top-action{
  flex-shrink:0;padding:10px 20px;border-radius:var(--r-full);
  background:var(--brand);color:#fff;font-size:14.5px;font-weight:600;
  box-shadow:0 8px 20px rgba(63,70,184,.26);
}
.top-action:hover{background:var(--brand-2);transform:translateY(-1px);}
.top-action:active{transform:translateY(0);box-shadow:none;}
.chipbar{border-top:1px solid var(--line);}
.chipbar-inner{
  display:flex;align-items:center;gap:8px;padding:9px 0;
  overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;
}
.chipbar-inner::-webkit-scrollbar{display:none;}
.nav-chip{
  flex:0 0 auto;padding:8px 16px;border-radius:var(--r-full);
  font-size:14.5px;font-weight:500;color:var(--ink-2);
  border:1px solid transparent;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.nav-chip:hover{background:var(--surface);border-color:var(--line-2);color:var(--brand);}
.nav-chip.is-active{background:var(--ink);color:#fff;border-color:var(--ink);font-weight:600;}
/* ===================== 通用按钮 / 标签 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-full);
  font-size:15.5px;font-weight:600;border:1px solid transparent;
  transition:transform .18s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px rgba(63,70,184,.28);}
.btn-primary:hover{background:var(--brand-2);transform:translateY(-2px);box-shadow:0 15px 32px rgba(63,70,184,.34);}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line-2);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--brand-2);}
.btn-light:hover{background:var(--brand-soft);transform:translateY(-2px);}
.btn:active{transform:translateY(0);box-shadow:none;}
.btn-sm{padding:9px 20px;font-size:14px;}
.btn-block{width:100%;}
.tag{
  display:inline-block;font-size:13px;padding:5px 13px;border-radius:var(--r-full);
  background:#f2f1ee;color:var(--ink-2);border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.tag:hover{background:var(--brand-soft);color:var(--brand-2);border-color:var(--brand-line);}
.tag.is-on{background:var(--brand-soft);color:var(--brand-2);border-color:var(--brand-line);font-weight:600;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;letter-spacing:.05em;
  padding:5px 12px;border-radius:var(--r-full);
  background:var(--accent-soft);color:#a75f24;border:1px solid #f3ddc6;
}
.badge-ok{background:var(--ok-soft);color:var(--ok);border-color:#cfe8db;}
.badge-brand{background:var(--brand-soft);color:var(--brand-2);border-color:var(--brand-line);}
/* ===================== 分类页 Hero ===================== */
.page-hero{
  position:relative;overflow:hidden;padding:46px 0 58px;
  background:
    radial-gradient(780px 340px at 92% -18%, rgba(63,70,184,.11), transparent 70%),
    radial-gradient(640px 300px at 3% 0%, rgba(224,139,76,.11), transparent 72%);
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb span{color:var(--line-2);}
.page-hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:48px;align-items:start;margin-top:22px;}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:600;color:var(--brand-2);
  background:var(--brand-soft);border:1px solid var(--brand-line);
  padding:6px 15px;border-radius:var(--r-full);
}
.hero-kicker i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:block;}
.page-hero h1{
  font-size:clamp(26px,3.2vw,40px);line-height:1.34;font-weight:800;
  letter-spacing:-.01em;margin-top:18px;
}
.page-hero .lead{margin-top:16px;font-size:16.5px;line-height:1.95;color:var(--ink-2);max-width:600px;}
.filter-cloud{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px;max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
/* 推荐档高亮卡 */
.pick-card{
  position:relative;background:var(--surface);border:1px solid var(--brand-line);
  border-radius:var(--r-lg);padding:26px 26px 24px;box-shadow:var(--sh-3);
  overflow:hidden;
}
.pick-card::before{
  content:"";position:absolute;inset:0 0 auto 0;height:5px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
}
.pick-flag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;
  color:#fff;background:var(--accent);padding:4px 12px;border-radius:var(--r-full);
}
.pick-card h3{font-size:21px;font-weight:800;margin-top:14px;line-height:1.45;}
.pick-card p{font-size:14.5px;color:var(--ink-2);line-height:1.9;margin-top:10px;}
.pick-meta{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:18px;}
.pick-meta div{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-sm);padding:10px 12px;}
.pick-meta strong{display:block;font-size:14.5px;font-weight:700;color:var(--brand-2);}
.pick-meta span{font-size:12px;color:var(--muted);}
.pick-card .btn{margin-top:20px;}
/* ===================== 数据条 ===================== */
.stat-strip{
  background:var(--surface);border-bottom:1px solid var(--line);
  padding:26px 0;
}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.stat-grid div{display:flex;flex-direction:column;gap:2px;padding-left:16px;border-left:2px solid var(--brand-line);}
.stat-grid strong{font-size:26px;font-weight:800;color:var(--brand-2);letter-spacing:-.02em;line-height:1.3;}
.stat-grid span{font-size:13.5px;color:var(--muted);}
/* ===================== 板块通用 ===================== */
.sect{padding:64px 0;}
.sect-alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sect-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:34px;}
.eyebrow{font-size:12.5px;font-weight:700;letter-spacing:.16em;color:var(--accent);text-transform:uppercase;}
.sect-title{font-size:clamp(21px,2.3vw,29px);font-weight:800;line-height:1.42;margin-top:10px;letter-spacing:-.01em;}
.sect-desc{font-size:15px;color:var(--muted);max-width:660px;margin-top:10px;line-height:1.9;}
/* ===================== 对照表板块 ===================== */
.matrix-layout{display:grid;grid-template-columns:236px minmax(0,1fr);gap:34px;align-items:start;}
.index-aside{
  position:sticky;top:126px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:20px 18px;box-shadow:var(--sh-1);
}
.index-aside h3{font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--muted);margin-bottom:12px;}
.index-aside li + li{margin-top:4px;}
.index-aside a{
  display:block;padding:8px 12px;border-radius:var(--r-sm);font-size:14.5px;color:var(--ink-2);
}
.index-aside a:hover{background:var(--brand-soft);color:var(--brand-2);}
.index-aside .aside-note{font-size:12.5px;color:var(--muted);line-height:1.8;margin-top:14px;padding-top:14px;border-top:1px dashed var(--line-2);}
.table-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow-x:auto;box-shadow:var(--sh-1);
}
table.matrix{width:100%;min-width:840px;border-collapse:collapse;font-size:14.5px;}
table.matrix caption{
  text-align:left;padding:18px 20px 4px;font-size:13.5px;color:var(--muted);
}
table.matrix th,table.matrix td{padding:14px 18px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line);}
table.matrix thead th{
  background:var(--ink);color:#fff;font-size:13.5px;font-weight:600;letter-spacing:.05em;
  border-bottom:0;white-space:nowrap;
}
table.matrix tbody tr:last-child td{border-bottom:0;}
table.matrix tbody tr:nth-child(even){background:var(--surface-2);}
table.matrix tbody tr:hover{background:var(--brand-soft);}
table.matrix td:first-child{font-weight:700;color:var(--brand-2);white-space:nowrap;}
.matrix-note{font-size:13.5px;color:var(--muted);margin-top:14px;line-height:1.9;}
/* ===================== 风格卡片 ===================== */
.style-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.style-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 22px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:12px;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.style-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.style-card h3{font-size:18.5px;font-weight:750;display:flex;align-items:center;gap:9px;}
.style-card h3 .dot{width:9px;height:9px;border-radius:50%;background:var(--brand);flex-shrink:0;}
.style-card p{font-size:14.5px;color:var(--ink-2);line-height:1.88;}
.style-card .tags{display:flex;flex-wrap:wrap;gap:6px;}
.style-card ul{margin-top:2px;display:flex;flex-direction:column;gap:7px;}
.style-card ul li{position:relative;padding-left:16px;font-size:13.5px;color:var(--muted);line-height:1.8;}
.style-card ul li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--accent);}
/* ===================== 题材选型 ===================== */
.topic-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.topic-item{
  display:grid;grid-template-columns:52px minmax(0,1fr);gap:16px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.topic-item:hover{border-color:var(--brand-line);box-shadow:var(--sh-2);transform:translateY(-3px);}
.topic-num{
  width:52px;height:52px;border-radius:var(--r-sm);
  background:var(--brand-soft);color:var(--brand-2);
  display:grid;place-items:center;font-weight:800;font-size:17px;
}
.topic-item h3{font-size:17px;font-weight:700;}
.topic-item .pair{font-size:13.5px;color:var(--brand-2);margin-top:6px;font-weight:600;}
.topic-item p{font-size:14px;color:var(--ink-2);line-height:1.85;margin-top:8px;}
/* ===================== 档位分层 ===================== */
.tier-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;align-items:stretch;}
.tier{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 24px;display:flex;flex-direction:column;box-shadow:var(--sh-1);
}
.tier-feature{
  border-color:var(--brand);box-shadow:var(--sh-3);position:relative;
  background:linear-gradient(180deg,#fff, #f7f7ff);
}
.tier-feature::after{
  content:"主推";position:absolute;top:16px;right:16px;
  font-size:12px;font-weight:700;letter-spacing:.1em;color:#fff;background:var(--brand);
  padding:4px 11px;border-radius:var(--r-full);
}
.tier h3{font-size:19px;font-weight:800;}
.tier .tier-sub{font-size:13.5px;color:var(--muted);margin-top:6px;}
.tier .price-line{
  margin-top:16px;padding-bottom:16px;border-bottom:1px dashed var(--line-2);
  font-size:22px;font-weight:800;color:var(--brand-2);letter-spacing:-.01em;
}
.tier .price-line small{font-size:13px;font-weight:500;color:var(--muted);margin-left:6px;}
.tier ul{margin-top:16px;display:flex;flex-direction:column;gap:9px;flex:1;}
.tier ul li{position:relative;padding-left:20px;font-size:14px;color:var(--ink-2);line-height:1.8;}
.tier ul li::before{
  content:"";position:absolute;left:0;top:8px;width:9px;height:9px;border-radius:50%;
  border:2px solid var(--brand);background:#fff;
}
.tier .btn{margin-top:20px;}
/* ===================== 步骤 ===================== */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;counter-reset:step;}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 22px 24px;position:relative;box-shadow:var(--sh-1);
}
.step-num{
  font-size:34px;font-weight:800;line-height:1;color:var(--brand-soft);
  letter-spacing:-.03em;
}
.step h3{font-size:17px;font-weight:750;margin-top:8px;}
.step p{font-size:14.5px;color:var(--ink-2);line-height:1.88;margin-top:10px;}
.step .tag{margin-top:14px;}
/* ===================== 案例观察 ===================== */
.case-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.case-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease, box-shadow .2s ease;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.case-thumb{height:132px;position:relative;overflow:hidden;}
.case-thumb svg{width:100%;height:100%;display:block;}
.case-body{padding:18px 18px 20px;}
.case-body h3{font-size:16px;font-weight:750;line-height:1.5;}
.case-body p{font-size:13.5px;color:var(--ink-2);line-height:1.85;margin-top:9px;}
.case-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:14px;padding-top:13px;border-top:1px dashed var(--line-2);font-size:12.5px;color:var(--muted);}
/* ===================== FAQ ===================== */
.faq-wrap{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:40px;align-items:start;}
.faq-aside .eyebrow{color:var(--brand);}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;transition:border-color .2s ease, box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--brand-line);box-shadow:var(--sh-2);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 56px 18px 22px;position:relative;
  font-size:15.5px;font-weight:650;line-height:1.7;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";position:absolute;right:20px;top:50%;width:11px;height:11px;
  transform:translateY(-50%) rotate(45deg);
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:translateY(-70%) rotate(-135deg);}
.faq-item summary:hover{background:var(--surface-2);}
.faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--ink-2);line-height:1.95;}
/* ===================== CTA / 表单 ===================== */
.cta-band{
  background:linear-gradient(135deg,#171a2b 0%, #2a2f86 100%);
  color:#fff;border-radius:var(--r-lg);padding:44px 40px;
  box-shadow:var(--sh-3);position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle, rgba(224,139,76,.35), transparent 68%);
}
.cta-grid{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:40px;position:relative;z-index:1;align-items:start;}
.cta-band h2{font-size:clamp(21px,2.3vw,28px);font-weight:800;line-height:1.45;}
.cta-band p{font-size:15px;color:rgba(255,255,255,.78);line-height:1.95;margin-top:14px;}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:10px;}
.cta-points li{position:relative;padding-left:22px;font-size:14.5px;color:rgba(255,255,255,.88);}
.cta-points li::before{
  content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:50%;
  background:var(--accent);
}
.brief-form{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-md);padding:24px 22px;
  backdrop-filter:blur(6px);
}
.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:14px;}
.field label{font-size:13.5px;font-weight:600;color:rgba(255,255,255,.86);}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.96);border:1px solid transparent;
  font-size:14.5px;color:var(--ink);outline:0;
  transition:box-shadow .2s ease, border-color .2s ease;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.8;}
.field input::placeholder,.field textarea::placeholder{color:#9aa0b8;}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(224,139,76,.35);}
.form-hint{font-size:12.5px;color:rgba(255,255,255,.6);margin-top:12px;line-height:1.8;}
/* ===================== 页脚 ===================== */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:72px;padding:52px 0 26px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-name{color:#fff;}
.footer-brand .logo-sub{color:rgba(255,255,255,.5);}
.footer-brand p{font-size:13.5px;line-height:1.95;color:rgba(255,255,255,.62);max-width:330px;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.06em;}
.footer-col ul{display:flex;flex-direction:column;gap:9px;}
.footer-col li{font-size:13.5px;color:rgba(255,255,255,.66);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.5);
}
/* ===================== 响应式 ===================== */
@media (max-width:1080px){
  .style-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .case-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .matrix-layout{grid-template-columns:1fr;}
  .index-aside{position:static;}
  .index-aside ul{display:flex;flex-wrap:wrap;gap:8px;}
  .index-aside a{padding:7px 14px;background:var(--surface-2);border:1px solid var(--line);}
}
@media (max-width:960px){
  .page-hero-grid{grid-template-columns:1fr;gap:34px;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-wrap{grid-template-columns:1fr;gap:26px;}
  .cta-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band{padding:34px 26px;}
}
@media (max-width:768px){
  .brandbar{flex-wrap:wrap;gap:12px;}
  .searchbar{order:3;margin-left:0;max-width:none;width:100%;min-width:0;}
  .top-action{margin-left:auto;padding:9px 16px;font-size:13.5px;}
  .sect{padding:48px 0;}
  .sect-head{margin-bottom:26px;}
  .topic-list{grid-template-columns:1fr;}
  .tier-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .pick-meta{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .container{width:min(100% - 28px, var(--maxw));}
  .style-grid{grid-template-columns:1fr;}
  .case-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr;}
  .cta-band{padding:28px 20px;border-radius:var(--r-md);}
  .page-hero h1{font-size:23px;}
  .btn{width:100%;}
  .hero-actions .btn{width:100%;}
  .pick-card .btn{width:100%;}
  .topic-item{grid-template-columns:1fr;gap:12px;}
  .topic-num{width:44px;height:44px;font-size:15px;}
}