/* ================= 基础 ================= */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --ink:#0A0D14;
  --ink2:#121A2B;
  --ink3:#1B2333;
  --paper:#ffffff;
  --paper2:#F4F6FB;
  --line:#E4E8F2;
  --muted:#5B657A;
  --neon:#C8FF3D;
  --orange:#FF5A1F;
  --blue:#2F5BFF;
  --purple:#7B5CFF;
  --green:#00C87F;
  --r:18px;
  --sh:0 16px 40px rgba(10,13,20,.08);
  --sh-lg:0 28px 60px rgba(10,13,20,.14);
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);background:var(--paper);line-height:1.7;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
button{font-family:inherit}
[id]{scroll-margin-top:88px}

/* ================= 通用组件 ================= */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:88px 0;position:relative}
.section.tint{background:var(--paper2)}
.section.dark{background:var(--ink);color:#fff}
.sec-head{max-width:780px;margin:0 auto 52px;text-align:center}
.sec-tag{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:.14em;
  color:var(--orange);background:rgba(255,90,31,.1);
  padding:7px 16px;border-radius:999px;margin-bottom:18px;
}
.section.dark .sec-tag{color:var(--neon);background:rgba(200,255,61,.12)}
.sec-title{font-size:clamp(23px,3.2vw,38px);line-height:1.28;font-weight:900;letter-spacing:-.6px}
.sec-desc{margin-top:16px;color:var(--muted);font-size:15.5px;line-height:1.85}
.section.dark .sec-desc{color:rgba(255,255,255,.66)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;font-weight:700;font-size:15px;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.98)}
.btn-primary{background:linear-gradient(135deg,#FF7A2F,#FF2E00);color:#fff;box-shadow:0 12px 28px rgba(255,60,0,.32)}
.btn-primary:hover{box-shadow:0 20px 42px rgba(255,60,0,.42)}
.btn-ghost{background:rgba(255,255,255,.07);color:#fff;border-color:rgba(255,255,255,.26)}
.btn-ghost:hover{background:rgba(200,255,61,.14);border-color:rgba(200,255,61,.6);color:var(--neon)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--ink);background:var(--ink);color:#fff}
.btn-neon{background:var(--neon);color:#0A0D14;box-shadow:0 12px 30px rgba(200,255,61,.28)}
.btn-block{width:100%}

/* 滚动渐入 */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.22,.61,.36,1),transform .7s cubic-bezier(.22,.61,.36,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ================= 顶部导航 ================= */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(10,13,20,.95);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.nav-inner{
  max-width:1320px;margin:0 auto;padding:0 20px;height:70px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.brand{display:flex;align-items:center;gap:10px;color:#fff;flex-shrink:0}
.ai-page-logo{height:36px;width:auto;max-width:100%;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:16px;font-weight:900;letter-spacing:.5px}
.brand-text span{font-size:11px;color:rgba(255,255,255,.5);letter-spacing:.16em}
.nav-links{display:flex;align-items:center;gap:0}
.nav-links a{
  display:block;padding:9px 10px;font-size:13.5px;font-weight:500;
  color:rgba(255,255,255,.78);border-radius:8px;transition:.2s;white-space:nowrap;
}
.nav-links a:hover{color:var(--neon);background:rgba(255,255,255,.07)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-actions .btn{padding:10px 20px;font-size:13.5px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ================= Hero ================= */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding:76px 0 0}
.hero::before{
  content:"";position:absolute;width:660px;height:660px;top:-320px;right:-170px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.52),rgba(255,90,31,0) 62%);pointer-events:none;
}
.hero::after{
  content:"";position:absolute;width:580px;height:580px;bottom:-280px;left:-190px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,91,255,.46),rgba(47,91,255,0) 62%);pointer-events:none;
}
.hero-grid{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 25%,#000 25%,transparent 76%);
  mask-image:radial-gradient(ellipse at 50% 25%,#000 25%,transparent 76%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;
  padding-bottom:62px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;font-weight:700;letter-spacing:.08em;
  color:var(--neon);background:rgba(200,255,61,.1);
  border:1px solid rgba(200,255,61,.3);padding:8px 16px;border-radius:999px;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--neon);animation:blink 2s infinite}
@keyframes blink{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(200,255,61,.5)}50%{opacity:.5;box-shadow:0 0 0 6px rgba(200,255,61,0)}}
.hero h1{
  font-size:clamp(30px,4.3vw,54px);line-height:1.16;font-weight:900;
  letter-spacing:-1.2px;margin:24px 0 20px;
}
.hero h1 .hl{color:var(--neon);position:relative;display:inline-block}
.hero-sub{
  font-size:16px;line-height:1.85;color:rgba(255,255,255,.72);max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.btn-hero{
  padding:17px 36px;font-size:16.5px;font-weight:800;
  background:linear-gradient(135deg,#FF8A3D 0%,#FF2E00 100%);
  color:#fff;box-shadow:0 18px 44px rgba(255,60,0,.42);
}
.btn-hero:hover{box-shadow:0 24px 54px rgba(255,60,0,.55)}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:32px}
.hero-points li{
  display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.7);
}
.hero-points li::before{
  content:"";width:16px;height:16px;border-radius:50%;flex-shrink:0;
  background:radial-gradient(circle at 30% 30%,#C8FF3D,#7BC400);
  box-shadow:0 0 0 3px rgba(200,255,61,.14);
}

/* Hero 面板 */
.hero-panel{
  position:relative;
  background:linear-gradient(160deg,rgba(255,255,255,.11),rgba(255,255,255,.028));
  border:1px solid rgba(255,255,255,.15);border-radius:26px;
  padding:26px 26px 22px;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  box-shadow:0 34px 80px rgba(0,0,0,.5);
}
.hero-panel::after{
  content:"";position:absolute;inset:-1px;border-radius:26px;pointer-events:none;
  background:linear-gradient(140deg,rgba(200,255,61,.35),transparent 42%,rgba(255,90,31,.32));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;padding:1px;
}
.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.panel-title{font-size:14px;font-weight:800;color:#fff;letter-spacing:.02em}
.panel-live{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--neon)}
.panel-live i{width:6px;height:6px;border-radius:50%;background:var(--neon);animation:blink 1.8s infinite}
.model-cloud{display:flex;flex-wrap:wrap;gap:9px}
.model-cloud span{
  font-size:12.5px;padding:6px 13px;border-radius:999px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.13);
  color:rgba(255,255,255,.86);transition:.25s;
}
.model-cloud span:hover{
  background:rgba(200,255,61,.16);border-color:rgba(200,255,61,.55);
  color:var(--neon);transform:translateY(-2px);
}
.panel-foot{
  margin-top:20px;padding-top:16px;border-top:1px dashed rgba(255,255,255,.16);
  font-size:12.5px;color:rgba(255,255,255,.55);line-height:1.7;
}
.panel-foot b{color:var(--neon);font-weight:700}

/* Hero 数据条 */
.hero-stats{
  position:relative;z-index:2;border-top:1px solid rgba(255,255,255,.1);
  padding:26px 0 32px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
}
.hero-stats .stat{text-align:center;padding:6px 10px;position:relative}
.hero-stats .stat+.stat::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:38px;background:rgba(255,255,255,.12);
}
.hero-stats strong{
  display:block;font-size:clamp(24px,3vw,34px);font-weight:900;letter-spacing:-1px;
  color:var(--neon);line-height:1.2;
}
.hero-stats span{font-size:13px;color:rgba(255,255,255,.6)}

/* ================= 关于我们 ================= */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.about-copy p{color:var(--muted);font-size:15.5px;line-height:1.9;margin-bottom:16px}
.about-copy .lead{
  font-size:17px;color:var(--ink);font-weight:600;line-height:1.8;
  padding-left:18px;border-left:4px solid var(--orange);margin-bottom:22px;
}
.about-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.about-tags span{
  font-size:13px;font-weight:600;padding:8px 15px;border-radius:999px;
  background:rgba(47,91,255,.08);color:var(--blue);border:1px solid rgba(47,91,255,.16);
}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:20px 18px;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.feature-card:hover{transform:translateY(-5px);box-shadow:var(--sh);border-color:rgba(255,90,31,.35)}
.feature-card .fc-icon{
  width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  margin-bottom:12px;color:#fff;
}
.feature-card h4{font-size:14.5px;font-weight:800;margin-bottom:6px}
.feature-card p{font-size:12.8px;color:var(--muted);line-height:1.65}

/* ================= 服务卡片 ================= */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}

.svc-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:20px;
  padding:26px 24px;overflow:hidden;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.svc-card::before{
  content:"";position:absolute;top:0;left:0;width:100%;height:3px;
  background:linear-gradient(90deg,var(--orange),var(--purple));
  transform:scaleX(0);transform-origin:left;transition:transform .4s ease;
}
.svc-card:hover{transform:translateY(-6px);box-shadow:var(--sh-lg);border-color:transparent}
.svc-card:hover::before{transform:scaleX(1)}
.svc-icon{
  width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;color:#fff;
}
.svc-card h3{font-size:16.5px;font-weight:800;margin-bottom:9px;letter-spacing:-.2px}
.svc-card p{font-size:13.5px;color:var(--muted);line-height:1.78}
.svc-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.svc-tags span{
  font-size:11.5px;font-weight:600;padding:4px 10px;border-radius:999px;
  background:var(--paper2);color:var(--muted);
}

/* ================= 一站式制作（深色） ================= */
.mini-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.mini-card{
  background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.1);
  border-radius:14px;padding:18px 18px 16px;
  transition:background .28s ease,border-color .28s ease,transform .28s ease;
}
.mini-card:hover{
  background:rgba(255,255,255,.085);border-color:rgba(200,255,61,.42);transform:translateY(-4px);
}
.mini-card h4{
  font-size:14.5px;font-weight:800;color:#fff;margin-bottom:7px;
  display:flex;align-items:center;gap:8px;
}
.mini-card h4::before{
  content:"";width:6px;height:6px;border-radius:50%;flex-shrink:0;
  background:var(--neon);box-shadow:0 0 0 3px rgba(200,255,61,.16);
}
.mini-card p{font-size:12.8px;color:rgba(255,255,255,.6);line-height:1.7}
.onestop-foot{
  margin-top:34px;text-align:center;
  padding:24px;border-radius:18px;
  background:linear-gradient(120deg,rgba(255,90,31,.16),rgba(123,92,255,.14));
  border:1px solid rgba(255,255,255,.12);
}
.onestop-foot p{font-size:15px;color:rgba(255,255,255,.8);margin-bottom:16px}
.onestop-foot p b{color:var(--neon)}

/* ================= 行业方案 ================= */
.ind-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 22px;
  transition:transform .28s ease,box-shadow .28s ease;
}
.ind-card:hover{transform:translateY(-5px);box-shadow:var(--sh)}
.ind-card .num{
  font-size:12px;font-weight:900;letter-spacing:.1em;color:var(--orange);
  margin-bottom:10px;display:block;
}
.ind-card h4{font-size:16px;font-weight:800;margin-bottom:8px}
.ind-card p{font-size:13.2px;color:var(--muted);line-height:1.75}

/* ================= 服务网络 ================= */
.net-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.net-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 18px;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.net-card:hover{transform:translateY(-4px);box-shadow:var(--sh);border-color:rgba(47,91,255,.28)}
.net-card h4{font-size:15px;font-weight:800;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.net-card h4::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--blue);transform:rotate(45deg)}
.net-card p{font-size:12.6px;color:var(--muted);line-height:1.8}

/* ================= 标准流程 ================= */
.process-line{position:relative;display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:16px}
.process-line::before{
  content:"";position:absolute;top:27px;left:6%;right:6%;height:2px;
  background:linear-gradient(90deg,var(--orange),var(--purple),var(--blue));
  opacity:.35;
}
.step{position:relative;text-align:center}
.step .dot{
  width:54px;height:54px;margin:0 auto 16px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:17px;color:#fff;position:relative;z-index:1;
  background:linear-gradient(135deg,var(--orange),var(--purple));
  box-shadow:0 12px 26px rgba(255,90,31,.28);
  transition:transform .3s ease;
}
.step:hover .dot{transform:translateY(-5px) scale(1.05)}
.step h4{font-size:14.5px;font-weight:800;margin-bottom:7px}
.step p{font-size:12.6px;color:var(--muted);line-height:1.7}

/* ================= 案例中心 ================= */
.case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.case-item{
  position:relative;overflow:hidden;border-radius:18px;background:#111;
  aspect-ratio:16/10;margin:0;
}
.case-item.wide{grid-column:span 2;aspect-ratio:32/10}
.case-item img{width:100%;height:100%;object-fit:cover;transition:transform .7s cubic-bezier(.2,.7,.3,1)}
.case-item:hover img{transform:scale(1.06)}
.case-item figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:22px 20px 18px;color:#fff;
  background:linear-gradient(to top,rgba(5,8,15,.9),rgba(5,8,15,.05) 78%);
}
.case-item figcaption strong{display:block;font-size:15px;font-weight:800;margin-bottom:4px}
.case-item figcaption span{font-size:12.5px;color:rgba(255,255,255,.72);line-height:1.5}

/* ================= 对比评测 ================= */
.score-banner{
  display:grid;grid-template-columns:auto 1fr;gap:26px;align-items:center;
  background:linear-gradient(120deg,#0A0D14,#1B2333 60%,#2B1B12);
  color:#fff;border-radius:22px;padding:30px 34px;margin-bottom:28px;
  box-shadow:0 24px 60px rgba(10,13,20,.22);
}
.score-main{display:flex;align-items:baseline;gap:8px}
.score-label{
  display:block;font-size:12px;letter-spacing:.14em;color:rgba(255,255,255,.55);
  margin-bottom:4px;width:100%;
}
.score-main{flex-direction:column;align-items:flex-start;gap:0}
.score-number{font-size:56px;font-weight:900;line-height:1;color:var(--neon);letter-spacing:-2px}
.score-total{font-size:16px;color:rgba(255,255,255,.45);margin-left:4px}
.score-stars{display:flex;flex-direction:column;gap:6px}
.score-stars .stars{color:#FFC53D;font-size:22px;letter-spacing:4px;line-height:1}
.score-stars span{font-size:14px;color:rgba(255,255,255,.78);font-weight:700}
.score-desc{grid-column:1/-1;font-size:13.5px;color:rgba(255,255,255,.6);line-height:1.75;margin-top:6px}

.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:18px;border:1px solid var(--line);background:#fff}
.compare-table{width:100%;border-collapse:collapse;min-width:760px;font-size:13.8px}
.compare-table th,.compare-table td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.compare-table th{
  background:var(--paper2);font-weight:800;font-size:13.5px;color:var(--ink);white-space:nowrap;
}
.compare-table tbody tr:hover{background:#FAFBFE}
.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table .col-best{background:#FFF7F3;color:var(--ink);font-weight:600;position:relative}
.compare-table .col-best::after{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--orange)}

/* ================= Token 比价 ================= */
.token-table{width:100%;border-collapse:collapse;min-width:700px;font-size:13.8px}
.token-table th,.token-table td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line)}
.token-table th{background:var(--ink);color:#fff;font-weight:700;font-size:13.5px;white-space:nowrap}
.token-table tbody tr:nth-child(even){background:#FAFBFE}
.token-table .save{color:var(--green);font-weight:800}
.token-note{
  margin-top:16px;padding:14px 18px;border-radius:12px;font-size:13px;line-height:1.7;
  background:rgba(255,90,31,.07);color:#A83A12;border:1px solid rgba(255,90,31,.16);
}
.token-cta{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ================= 用户评价 ================= */
.review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.review-card{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px 24px;
  display:flex;flex-direction:column;transition:transform .3s ease,box-shadow .3s ease;
}
.review-card:hover{transform:translateY(-6px);box-shadow:var(--sh-lg)}
.review-stars{color:#FFB020;font-size:15px;letter-spacing:3px;margin-bottom:14px}
.review-text{font-size:14px;color:#333C4E;line-height:1.85;flex:1}
.review-user{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.review-avatar{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:16px;color:#fff;
}
.review-user b{display:block;font-size:14px;font-weight:800}
.review-user span{font-size:12.3px;color:var(--muted)}

/* ================= 表单 ================= */
.demand-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:start}
.demand-info h3{font-size:22px;font-weight:900;margin-bottom:16px;letter-spacing:-.4px}
.demand-info p{font-size:14.5px;color:var(--muted);line-height:1.9;margin-bottom:22px}
.demand-list li{
  display:flex;gap:12px;align-items:flex-start;font-size:14px;color:#333C4E;
  padding:11px 0;border-bottom:1px dashed var(--line);
}
.demand-list li:last-child{border-bottom:none}
.demand-list li::before{
  content:"";width:18px;height:18px;border-radius:50%;flex-shrink:0;margin-top:4px;
  background:linear-gradient(135deg,var(--orange),var(--purple));
  box-shadow:0 0 0 3px rgba(255,90,31,.12);
}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:22px;
  padding:32px;box-shadow:var(--sh);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:13px;font-weight:700;color:var(--ink)}
.field label i{color:var(--orange);font-style:normal}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border-radius:12px;border:1px solid var(--line);
  background:var(--paper2);font-size:14px;color:var(--ink);font-family:inherit;
  transition:border-color .25s ease,background .25s ease,box-shadow .25s ease;
}
.field input::placeholder,.field textarea::placeholder{color:#9AA3B5}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--orange);background:#fff;
  box-shadow:0 0 0 4px rgba(255,90,31,.1);
}
.field textarea{resize:vertical;min-height:110px;line-height:1.7}
.form-note{font-size:12.3px;color:var(--muted);margin-top:14px;text-align:center;line-height:1.6}

/* ================= 帮助中心 / 百科 ================= */
.help-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 22px;
  transition:transform .28s ease,box-shadow .28s ease;
}
.help-card:hover{transform:translateY(-5px);box-shadow:var(--sh)}
.help-card h4{font-size:15.5px;font-weight:800;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.help-card h4::before{content:"";width:10px;height:10px;border-radius:3px;background:var(--purple);transform:rotate(45deg)}
.help-card li{font-size:13.2px;color:var(--muted);padding:7px 0;line-height:1.7;border-bottom:1px dashed #EEF1F7}
.help-card li:last-child{border-bottom:none}

.wiki-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.wiki-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 20px;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.wiki-card:hover{transform:translateY(-4px);box-shadow:var(--sh);border-color:rgba(123,92,255,.35)}
.wiki-card h4{font-size:15px;font-weight:800;margin-bottom:8px;color:var(--purple)}
.wiki-card p{font-size:13px;color:var(--muted);line-height:1.78}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;justify-content:center}
.tag-cloud span{
  font-size:13px;padding:8px 16px;border-radius:999px;background:#fff;
  border:1px solid var(--line);color:var(--muted);transition:.25s;font-weight:500;
}
.tag-cloud span:hover{background:var(--ink);color:var(--neon);border-color:var(--ink);transform:translateY(-2px)}

/* ================= FAQ ================= */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  margin-bottom:14px;overflow:hidden;transition:box-shadow .28s ease,border-color .28s ease;
}
.faq-item.open{border-color:rgba(255,90,31,.4);box-shadow:var(--sh)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:transparent;border:none;cursor:pointer;
  font-size:15px;font-weight:700;color:var(--ink);text-align:left;line-height:1.6;
}
.faq-icon{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--paper2);color:var(--orange);font-size:18px;font-weight:700;
  transition:transform .3s ease,background .3s ease,color .3s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--orange);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s ease}
.faq-a p{padding:0 24px 22px;font-size:14px;color:var(--muted);line-height:1.85}

/* ================= 资讯 / 文章 ================= */
.news-wrap{display:grid;grid-template-columns:1.25fr .75fr;gap:34px;align-items:start}
.articles-box{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;
  min-height:180px;font-size:14px;color:var(--muted);line-height:1.9;
}
.articles-box a{color:var(--blue);font-weight:600}
.articles-box a:hover{text-decoration:underline}
.news-links{display:flex;flex-direction:column;gap:12px}
.news-link{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:16px 20px;font-size:14px;font-weight:600;color:var(--ink);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-link:hover{transform:translateX(4px);box-shadow:var(--sh);border-color:rgba(47,91,255,.35);color:var(--blue)}
.news-link::after{content:"→";color:var(--orange);font-weight:800}

/* ================= 联系我们 ================= */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:start}
.contact-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 20px;
  transition:transform .28s ease,box-shadow .28s ease;
}
.contact-item:hover{transform:translateY(-4px);box-shadow:var(--sh)}
.contact-item .ci-label{font-size:12px;letter-spacing:.1em;color:var(--muted);margin-bottom:8px}
.contact-item .ci-value{font-size:15.5px;font-weight:800;word-break:break-all;line-height:1.5}
.contact-item a.ci-value:hover{color:var(--orange)}
.qr-card{
  background:linear-gradient(160deg,#0A0D14,#1B2333);color:#fff;
  border-radius:22px;padding:28px;text-align:center;
}
.qr-card img{
  width:200px;max-width:100%;margin:0 auto 16px;border-radius:14px;
  background:#fff;padding:8px;
}
.qr-card b{display:block;font-size:15px;margin-bottom:6px}
.qr-card span{font-size:12.5px;color:rgba(255,255,255,.6);line-height:1.7}

/* ================= 加盟代理 ================= */
.join-banner{
  position:relative;overflow:hidden;border-radius:26px;
  background:linear-gradient(120deg,#FF5A1F 0%,#FF2E00 45%,#7B2BFF 100%);
  color:#fff;padding:52px 46px;text-align:center;
  box-shadow:0 30px 70px rgba(255,60,0,.28);
}
.join-banner::before{
  content:"";position:absolute;width:460px;height:460px;border-radius:50%;
  background:rgba(255,255,255,.13);top:-220px;right:-120px;
}
.join-banner::after{
  content:"";position:absolute;width:340px;height:340px;border-radius:50%;
  background:rgba(200,255,61,.16);bottom:-200px;left:-100px;
}
.join-banner > *{position:relative;z-index:1}
.join-banner h2{font-size:clamp(22px,3vw,34px);font-weight:900;letter-spacing:-.6px;margin-bottom:16px}
.join-banner p{font-size:15px;color:rgba(255,255,255,.9);max-width:760px;margin:0 auto 28px;line-height:1.85}
.join-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.join-banner .btn-neon{background:#fff;color:#0A0D14}
.join-banner .btn-neon:hover{background:var(--neon)}

/* ================= 友情链接 ================= */
.friend-links{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:26px;
}
.friend-links a{
  font-size:13px;padding:9px 18px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--muted);transition:.25s;font-weight:500;
}
.friend-links a:hover{background:var(--ink);color:var(--neon);border-color:var(--ink)}

/* ================= 页脚 ================= */
.site-footer{background:var(--ink);color:rgba(255,255,255,.66);padding:66px 0 0}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:38px;padding-bottom:44px}
.footer-brand .ai-page-logo{height:38px;margin-bottom:16px}
.footer-brand p{font-size:13.2px;line-height:1.85;color:rgba(255,255,255,.55);max-width:330px}
.footer-col h5{font-size:14px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a,.footer-col span{font-size:13.2px;color:rgba(255,255,255,.6);transition:.22s;line-height:1.7}
.footer-col a:hover{color:var(--neon)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.5px;color:rgba(255,255,255,.42);
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--neon)}

/* ================= 浮动客服 ================= */
.float-dock{
  position:fixed;right:20px;bottom:26px;z-index:1200;
  display:flex;flex-direction:column;gap:12px;align-items:flex-end;
}
.dock-btn{
  width:52px;height:52px;border-radius:16px;border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  font-size:12.5px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,#FF7A2F,#FF2E00);
  box-shadow:0 14px 32px rgba(255,60,0,.36);
  transition:transform .25s ease,box-shadow .25s ease;
  writing-mode:horizontal-tb;
}
.dock-btn:hover{transform:translateY(-3px);box-shadow:0 20px 40px rgba(255,60,0,.46)}
.dock-btn.dock-top{background:#1B2333;box-shadow:0 14px 32px rgba(10,13,20,.32);font-size:18px}
.dock-pop{
  position:absolute;right:64px;bottom:0;
  background:#fff;border-radius:16px;padding:14px;text-align:center;
  box-shadow:0 22px 50px rgba(10,13,20,.24);
  width:180px;opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s;
}
.dock-pop.show{opacity:1;visibility:visible;transform:translateY(0)}
.dock-pop img{width:100%;height:auto;border-radius:10px;display:block;margin-bottom:8px}
.dock-pop span{font-size:12px;color:var(--muted);line-height:1.5;display:block}

/* ================= 响应式 ================= */
@media (max-width:1180px){
  .nav-links a{padding:9px 8px;font-size:13px}
  .nav-actions .btn{padding:9px 15px;font-size:13px}
}
@media (max-width:1080px){
  .nav-toggle{display:flex}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:#0A0D14;border-bottom:1px solid rgba(255,255,255,.1);
    padding:8px 16px 20px;box-shadow:0 24px 48px rgba(0,0,0,.5);
  }
  .nav-links.open{display:flex}
  .nav-links a{
    padding:14px 8px;font-size:14.5px;border-radius:0;
    border-bottom:1px solid rgba(255,255,255,.07);
  }
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-panel{max-width:640px}
  .about-grid{grid-template-columns:1fr;gap:36px}
  .demand-wrap{grid-template-columns:1fr;gap:32px}
  .contact-grid{grid-template-columns:1fr}
  .news-wrap{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}
  .process-line{grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
  .process-line::before{display:none}
  .net-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .review-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .grid-3,.grid-4,.mini-grid,.wiki-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:20px}
  .hero-stats .stat:nth-child(3)::before{display:none}
  .score-banner{grid-template-columns:1fr;gap:18px}
  .contact-list{grid-template-columns:1fr}
  .join-banner{padding:40px 26px}
}
@media (max-width:720px){
  .section{padding:60px 0}
  .sec-head{margin-bottom:36px}
  .grid-2,.grid-3,.grid-4,.mini-grid,.wiki-grid,.review-grid,.net-grid,.feature-grid{grid-template-columns:1fr}
  .process-line{grid-template-columns:1fr 1fr;gap:24px}
  .hero{padding-top:52px}
  .hero-inner{padding-bottom:44px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 100%}
  .btn-hero{width:100%}
  .case-grid{grid-template-columns:1fr}
  .case-item,.case-item.wide{grid-column:span 1;aspect-ratio:16/10}
  .form-grid{grid-template-columns:1fr}
  .form-card{padding:24px 20px}
  .footer-top{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;text-align:center;gap:8px}
  .float-dock{right:14px;bottom:18px}
  .dock-btn{width:46px;height:46px;border-radius:14px;font-size:11.5px}
  .dock-pop{right:56px;width:160px}
  .hero-stats{grid-template-columns:1fr 1fr}
  .score-number{font-size:46px}
  .join-banner{padding:34px 20px;border-radius:20px}
  .faq-q{padding:17px 18px;font-size:14.2px}
  .faq-a p{padding:0 18px 18px;font-size:13.4px}
  .contact-item .ci-value{font-size:14.5px}
}
@media (max-width:420px){
  .brand-text span{display:none}
  .hero-stats{grid-template-columns:1fr}
  .hero-stats .stat::before{display:none}
}