/* 广告主门户公开主页 — 对齐 docs/design/prototypes/advertiser-portal-landing-signup.html 屏1 */
:root{
  --grad:linear-gradient(135deg,#FFC462 0%,#FFA24E 50%,#FF8C42 100%);
  --brand:#FF8C42;--brand-mid:#FFA24E;--brand-light:#FFC462;
  --brand-soft:#FFF7ED;--brand-border:#FFE3CC;
  --bg:#F5F4F2;--card:#FFFFFF;
  --ink:#1a1a1a;--body-c:#555;--muted:#999;--hint:#888;
  --price:#FF4500;--ok:#16A34A;
  --blue-bg:#EFF6FF;--blue:#3B82F6;--green-bg:#F0FDF4;
  --line:#EDEBE8;--line-strong:#E0DDD8;
  --r-sm:8px;--r-md:14px;--r-lg:20px;--r-xl:24px;
  --shadow-card:0 1px 3px rgba(26,26,26,.05),0 8px 24px rgba(26,26,26,.06);
  --shadow-pop:0 24px 60px rgba(255,140,66,.18),0 4px 16px rgba(26,26,26,.08);
  --ink-deep:#1A1D24;
  font-size:16px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
}
.portal-landing{
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",-apple-system,sans-serif;
  background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;
  min-height:100vh;
}
.num{font-variant-numeric:tabular-nums;letter-spacing:-.01em}
button{font-family:inherit;cursor:pointer;border:none;background:none}
a{color:inherit}
svg{display:block}

.wrap{max-width:1200px;margin:0 auto;padding:0 32px}
.btn-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--grad);color:#fff;font-weight:600;border-radius:999px;
  padding:13px 32px;font-size:15px;box-shadow:0 8px 24px rgba(255,140,66,.32);
  transition:.2s;text-decoration:none;
}
.btn-grad:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(255,140,66,.42);color:#fff}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:#fff;color:var(--ink);font-weight:600;border-radius:999px;
  padding:12px 30px;font-size:15px;border:1.5px solid var(--line-strong);transition:.2s;
  text-decoration:none;
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--brand);background:var(--brand-soft);border:1px solid var(--brand-border);
  padding:6px 16px;border-radius:999px;letter-spacing:.04em;
}
.dot{width:6px;height:6px;border-radius:50%;background:var(--brand)}

/* Topbar */
.topbar{
  position:sticky;top:0;z-index:800;background:rgba(255,255,255,.88);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line);
}
.topbar-in{display:flex;align-items:center;gap:36px;height:68px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;text-decoration:none;color:inherit}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(255,140,66,.35);
}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em}
.brand-sub{font-size:10.5px;color:var(--muted);letter-spacing:.14em;margin-top:1px}
.topnav{display:flex;gap:30px;flex:1}
.topnav a{
  font-size:14px;color:var(--body-c);text-decoration:none;font-weight:500;
  padding:6px 2px;border-bottom:2px solid transparent;transition:.18s;
}
.topnav a:hover{color:var(--ink);border-bottom-color:var(--brand)}
.topbar-cta{display:flex;gap:12px;align-items:center;flex-shrink:0}
.topbar-cta .link-login{font-size:14px;color:var(--body-c);text-decoration:none;font-weight:600;padding:8px 14px;border-radius:999px;transition:.18s}
.topbar-cta .link-login:hover{color:var(--brand);background:var(--brand-soft)}
.btn-sm{padding:10px 24px;font-size:14px}

/* Hero */
.hero{position:relative;overflow:hidden;padding:92px 0 96px;background:var(--bg)}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:56px 56px;opacity:.45;
  -webkit-mask-image:radial-gradient(ellipse 90% 80% at 30% 20%,#000 30%,transparent 75%);
  mask-image:radial-gradient(ellipse 90% 80% at 30% 20%,#000 30%,transparent 75%);
}
.hero::after{
  content:"";position:absolute;width:560px;height:560px;border-radius:50%;
  right:-140px;top:-180px;
  background:radial-gradient(circle,rgba(255,196,98,.32),rgba(255,140,66,.1) 55%,transparent 72%);
  filter:blur(8px);
}
.hero-in{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.hero h1{
  font-size:52px;line-height:1.22;font-weight:700;letter-spacing:-.01em;margin:26px 0 20px;
}
.hero h1 .hl{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero .lede{font-size:17px;line-height:1.9;color:var(--body-c);max-width:520px;margin-bottom:38px}
.hero-cta{display:flex;gap:16px;align-items:center;margin-bottom:36px}
.hero-trust{display:flex;gap:26px;flex-wrap:wrap}
.hero-trust .t{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--hint)}
.hero-trust .t svg{color:var(--ok);flex-shrink:0}

.hero-visual{position:relative}
.mock{
  background:var(--card);border-radius:var(--r-lg);box-shadow:var(--shadow-pop);
  border:1px solid var(--line);overflow:hidden;
}
.mock-head{
  display:flex;align-items:center;gap:10px;padding:14px 18px;
  border-bottom:1px solid var(--line);background:#FCFBFA;
}
.mock-dots{display:flex;gap:6px}
.mock-dots i{width:10px;height:10px;border-radius:50%;background:#E8E4DF}
.mock-dots i:first-child{background:var(--brand-light)}
.mock-title{font-size:12.5px;color:var(--muted);font-weight:600;letter-spacing:.05em}
.mock-body{padding:20px 22px 22px}
.mock-row{display:flex;gap:14px}
.mock-balance{
  flex:1.25;background:var(--ink-deep);border-radius:var(--r-md);padding:18px 20px;color:#fff;
  position:relative;overflow:hidden;
}
.mock-balance::after{
  content:"";position:absolute;right:-34px;top:-34px;width:110px;height:110px;border-radius:50%;
  background:var(--grad);opacity:.28;filter:blur(6px);
}
.mb-label{font-size:11px;color:rgba(255,255,255,.55);letter-spacing:.12em;margin-bottom:8px}
.mb-value{font-size:27px;font-weight:700}
.mb-value .cny{font-size:14px;font-weight:600;margin-right:2px;color:var(--brand-light)}
.mb-trend{display:flex;align-items:center;gap:5px;margin-top:9px;font-size:11.5px;color:#7CD9A8}
.mock-side{flex:1;display:flex;flex-direction:column;gap:14px}
.ms-card{background:#FDFCFA;border:1px solid var(--line);border-radius:var(--r-md);padding:14px 16px;flex:1}
.ms-label{font-size:11px;color:var(--muted);margin-bottom:6px}
.ms-value{font-size:20px;font-weight:700}
.ms-value em{font-style:normal;font-size:11.5px;font-weight:500;color:var(--ok);background:var(--green-bg);border-radius:6px;padding:2px 6px;margin-left:6px;vertical-align:2px}
.mock-chart{display:flex;align-items:flex-end;gap:9px;height:74px;margin-top:18px;padding:0 2px}
.mock-chart .bar{flex:1;border-radius:5px 5px 2px 2px;background:linear-gradient(180deg,var(--brand-light),var(--brand));opacity:.85;position:relative}
.mock-chart .bar.today{opacity:1;box-shadow:0 0 0 2px #fff,0 0 0 3.5px var(--brand)}
.mock-chart .bar::after{content:attr(data-v);position:absolute;top:-19px;left:50%;transform:translateX(-50%);font-size:9.5px;color:var(--muted);white-space:nowrap}
.mock-list{margin-top:18px;display:flex;flex-direction:column;gap:9px}
.ml-row{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--body-c)}
.ml-badge{width:26px;height:26px;border-radius:8px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.ml-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ml-state{font-size:11px;font-weight:600}
.ml-state.ok{color:var(--ok)}.ml-state.wait{color:var(--brand)}
.mock-float{
  position:absolute;right:-26px;top:-30px;background:#fff;border-radius:var(--r-md);
  box-shadow:0 16px 44px rgba(26,26,26,.14);border:1px solid var(--line);
  padding:14px 18px;display:flex;align-items:center;gap:12px;
  animation:floaty 4.5s ease-in-out infinite;
}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}
.mf-ico{width:36px;height:36px;border-radius:10px;background:var(--green-bg);color:var(--ok);display:flex;align-items:center;justify-content:center}
.mf-t1{font-size:12.5px;font-weight:600}
.mf-t2{font-size:11.5px;color:var(--muted);margin-top:2px}
.mf-t2 b{color:var(--price);font-size:13px}
.mock-float.b2{right:auto;left:-30px;top:auto;bottom:-26px;animation-delay:2.2s}
.mock-float.b2 .mf-ico{background:var(--blue-bg);color:var(--blue)}

/* 数据带 */
.statband{background:var(--ink-deep);padding:56px 0;position:relative;overflow:hidden}
.statband::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse 60% 120% at 15% 0%,rgba(255,162,78,.22),transparent 60%);
}
.statband-in{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat .v{font-size:38px;font-weight:700;color:#fff}
.stat .v .u{font-size:16px;font-weight:600;color:var(--brand-light);margin-left:3px}
.stat .k{font-size:13px;color:rgba(255,255,255,.5);margin-top:8px;letter-spacing:.03em}
.stat{padding:6px 8px}
.stat+.stat{border-left:1px solid rgba(255,255,255,.1)}

.section{padding:88px 0}
.section.alt{background:#FBFAF8;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{text-align:center;max-width:640px;margin:0 auto 56px}
.sec-head h2{font-size:34px;font-weight:700;letter-spacing:-.01em;margin:18px 0 14px}
.sec-head p{font-size:15.5px;line-height:1.85;color:var(--body-c)}

.cap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.cap{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px 26px;transition:.22s;position:relative;overflow:hidden;
}
.cap:hover{transform:translateY(-5px);box-shadow:var(--shadow-card);border-color:var(--brand-border)}
.cap-ico{
  width:52px;height:52px;border-radius:var(--r-md);background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;
}
.cap h3{font-size:17.5px;font-weight:700;margin-bottom:11px}
.cap p{font-size:13.5px;line-height:1.8;color:var(--body-c)}
.cap .no{
  position:absolute;right:16px;top:14px;font-size:40px;font-weight:800;
  color:var(--bg);font-style:italic;letter-spacing:-.04em;user-select:none;
}
.cap:hover .no{color:var(--brand-soft)}

.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.flow::before{
  content:"";position:absolute;top:31px;left:12%;right:12%;height:2px;
  background:repeating-linear-gradient(90deg,var(--brand-border) 0 10px,transparent 10px 20px);
}
.flow-step{text-align:center;padding:0 14px;position:relative}
.fs-dot{
  width:62px;height:62px;border-radius:50%;margin:0 auto 20px;position:relative;z-index:1;
  background:#fff;border:2px solid var(--brand-border);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
}
.flow-step:first-child .fs-dot{background:var(--grad);border-color:transparent;color:#fff;box-shadow:0 8px 20px rgba(255,140,66,.35)}
.flow-step h4{font-size:16.5px;font-weight:700;margin-bottom:9px}
.flow-step p{font-size:13px;line-height:1.75;color:var(--body-c)}
.fs-idx{
  display:inline-block;font-size:11px;font-weight:700;color:var(--brand);
  background:var(--brand-soft);border-radius:6px;padding:2px 9px;margin-bottom:10px;letter-spacing:.06em;
}

.comp-band{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:44px 48px;display:grid;grid-template-columns:repeat(4,1fr);gap:30px;
  box-shadow:var(--shadow-card);
}
.comp{display:flex;gap:14px;align-items:flex-start}
.comp-ico{
  width:42px;height:42px;border-radius:var(--r-sm);background:var(--green-bg);color:var(--ok);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.comp h4{font-size:15px;font-weight:700;margin-bottom:7px}
.comp p{font-size:12.5px;line-height:1.7;color:var(--body-c)}

.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.res{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;display:flex;gap:18px;align-items:center;transition:.2s;
  text-decoration:none;color:inherit;
}
.res:hover{border-color:var(--brand);box-shadow:var(--shadow-card)}
.res-ico{width:50px;height:50px;border-radius:var(--r-md);background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.res h4{font-size:16px;font-weight:700;margin-bottom:5px}
.res p{font-size:13px;color:var(--body-c);line-height:1.6}
.res .arrow{margin-left:auto;color:var(--line-strong);flex-shrink:0;transition:.2s}
.res:hover .arrow{color:var(--brand);transform:translateX(4px)}

.final-cta{position:relative;padding:96px 0;overflow:hidden;background:var(--bg)}
.final-card{
  background:var(--ink-deep);border-radius:var(--r-xl);padding:72px 64px;text-align:center;
  position:relative;overflow:hidden;
}
.final-card::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse 70% 130% at 50% -30%,rgba(255,162,78,.35),transparent 62%);
}
.final-card::after{
  content:"";position:absolute;left:-60px;bottom:-90px;width:280px;height:280px;border-radius:50%;
  border:1.5px solid rgba(255,196,98,.25);
}
.final-card .in{position:relative}
.final-card h2{color:#fff;font-size:34px;font-weight:700;margin-bottom:16px}
.final-card h2 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.final-card p{color:rgba(255,255,255,.6);font-size:15.5px;margin-bottom:38px;line-height:1.8}

.footer{background:var(--ink-deep);color:rgba(255,255,255,.62);padding:60px 0 34px;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px}
.footer .fbrand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer .fbrand .brand-name{color:#fff}
.footer .fdesc{font-size:13px;line-height:1.85;max-width:300px}
.footer h5{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px}
.footer ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer a{color:rgba(255,255,255,.62);font-size:13px;text-decoration:none;transition:.15s}
.footer a:hover{color:var(--brand-light)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding-top:24px;
  display:flex;justify-content:space-between;font-size:12px;color:rgba(255,255,255,.4);flex-wrap:wrap;gap:8px;
}

@media (max-width:1080px){
  .hero-in{grid-template-columns:1fr;gap:52px}
  .hero h1{font-size:42px}
  .cap-grid{grid-template-columns:1fr 1fr}
  .statband-in{grid-template-columns:1fr 1fr;gap:36px}
  .stat+.stat{border-left:none}
  .comp-band{grid-template-columns:1fr 1fr;padding:36px}
  .res-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .flow{grid-template-columns:1fr 1fr;gap:36px 0}
  .flow::before{display:none}
  .topnav{display:none}
}
@media (max-width:640px){
  .wrap{padding:0 18px}
  .hero{padding:56px 0 64px}
  .hero h1{font-size:32px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn-grad,.hero-cta .btn-ghost{width:100%}
  .cap-grid{grid-template-columns:1fr}
  .statband-in{grid-template-columns:1fr 1fr;gap:28px}
  .stat .v{font-size:28px}
  .sec-head h2{font-size:25px}
  .comp-band{grid-template-columns:1fr;padding:28px}
  .final-card{padding:44px 24px}
  .final-card h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr}
  .mock-float{display:none}
}