:root{
  --bg:#070b1c;
  --bg-soft:#0c1230;
  --card:#101735;
  --card-2:#131b3f;
  --line:rgba(120,150,255,.18);
  --txt:#eaf0ff;
  --txt-2:#a8b4d8;
  --txt-3:#7c88b4;
  --neon1:#00e5ff;
  --neon2:#7c5cff;
  --neon3:#ff4fd8;
  --neon4:#31ffb0;
  --grad:linear-gradient(120deg,#00e5ff,#7c5cff 55%,#ff4fd8);
  --radius:18px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --max:1200px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Segoe UI",Roboto,sans-serif;
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;height:auto;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 22px;}
section{position:relative;}
.sec-pad{padding:88px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--neon1);font-weight:600;
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(0,229,255,.35);
  background:rgba(0,229,255,.07);
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--neon1);box-shadow:0 0 10px var(--neon1);}
h2.sec-title{
  font-size:clamp(24px,3.2vw,38px);
  line-height:1.28;font-weight:800;letter-spacing:-.5px;
  margin-bottom:14px;
}
.sec-title .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.sec-desc{color:var(--txt-2);font-size:16px;max-width:760px;margin-bottom:40px;}

/* ========== NAV ========== */
.site-header{
  position:sticky;top:0;z-index:900;
  backdrop-filter:blur(18px);
  background:rgba(7,11,28,.78);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.ai-page-logo{height:38px;width:auto;max-width:150px;object-fit:contain;border-radius:8px;}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.5px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:0;list-style:none;flex-wrap:wrap;}
.nav-links a{
  display:block;padding:8px 7px;font-size:13.5px;color:var(--txt-2);
  border-radius:8px;transition:color .25s,background .25s;white-space:nowrap;
}
.nav-links a:hover{color:var(--neon1);background:rgba(0,229,255,.08);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:700;font-size:15px;border-radius:999px;cursor:pointer;border:none;
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
  font-family:inherit;
}
.btn-primary{
  background:var(--grad);color:#06091a;padding:12px 26px;
  box-shadow:0 8px 26px rgba(124,92,255,.42);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(124,92,255,.6);filter:brightness(1.06);}
.btn-primary:active{transform:translateY(0) scale(.98);}
.btn-ghost{
  background:transparent;color:var(--txt);border:1px solid rgba(120,150,255,.4);padding:11px 24px;
}
.btn-ghost:hover{border-color:var(--neon1);color:var(--neon1);transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,229,255,.18);}
.btn-sm{padding:9px 18px;font-size:13.5px;}
.menu-toggle{
  display:none;background:none;border:1px solid var(--line);border-radius:10px;
  width:44px;height:42px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.menu-toggle span{width:20px;height:2px;background:var(--txt);border-radius:2px;transition:.3s;}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle.open span:nth-child(2){opacity:0;}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ========== HERO ========== */
.hero{
  position:relative;overflow:hidden;
  padding:92px 0 84px;
  background:
    radial-gradient(1200px 500px at 15% -10%,rgba(124,92,255,.28),transparent 60%),
    radial-gradient(900px 500px at 85% 0%,rgba(0,229,255,.22),transparent 60%),
    radial-gradient(700px 500px at 60% 110%,rgba(255,79,216,.16),transparent 60%),
    linear-gradient(180deg,#070b1c,#0a1030 70%,#070b1c);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(120,150,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(120,150,255,.06) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 50% 30%,#000,transparent 78%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center;position:relative;z-index:2;}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;font-size:13.5px;color:var(--neon4);
  border:1px solid rgba(49,255,176,.35);background:rgba(49,255,176,.08);
  padding:7px 16px;border-radius:999px;margin-bottom:24px;font-weight:600;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--neon4);box-shadow:0 0 10px var(--neon4);animation:pulse 1.8s infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.7)}}
.hero h1{
  font-size:clamp(30px,4.4vw,54px);line-height:1.16;font-weight:800;letter-spacing:-1.2px;
  margin-bottom:22px;
}
.hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero p.lead{font-size:clamp(15px,1.6vw,18px);color:var(--txt-2);max-width:600px;margin-bottom:32px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-cta .btn-primary{padding:15px 34px;font-size:16px;}
.hero-cta .btn-ghost{padding:14px 30px;}
.hero-mini{display:flex;flex-wrap:wrap;gap:10px 26px;color:var(--txt-3);font-size:13.5px;}
.hero-mini span{display:inline-flex;align-items:center;gap:7px;}
.hero-mini svg{width:15px;height:15px;stroke:var(--neon1);fill:none;stroke-width:2.4;flex-shrink:0;}

.hero-panel{position:relative;}
.panel-glow{
  position:absolute;inset:-30px;border-radius:32px;
  background:radial-gradient(circle at 30% 20%,rgba(0,229,255,.3),transparent 60%),radial-gradient(circle at 80% 90%,rgba(255,79,216,.3),transparent 60%);
  filter:blur(40px);z-index:0;
}
.panel-card{
  position:relative;z-index:2;border-radius:24px;padding:26px;
  background:linear-gradient(160deg,rgba(19,27,63,.92),rgba(10,16,42,.94));
  border:1px solid rgba(120,150,255,.28);
  box-shadow:var(--shadow);
}
.panel-card h3{font-size:15px;color:var(--txt-2);font-weight:600;margin-bottom:16px;letter-spacing:.04em;}
.panel-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:18px;}
.pstat{
  background:rgba(0,229,255,.05);border:1px solid rgba(0,229,255,.16);
  border-radius:14px;padding:14px 16px;
}
.pstat b{display:block;font-size:24px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2;}
.pstat span{font-size:12.5px;color:var(--txt-3);}
.panel-list{list-style:none;display:grid;gap:9px;}
.panel-list li{
  display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--txt-2);
  padding:9px 12px;border-radius:10px;background:rgba(255,255,255,.025);
  border:1px solid rgba(120,150,255,.1);transition:.25s;
}
.panel-list li:hover{background:rgba(124,92,255,.12);border-color:rgba(124,92,255,.35);transform:translateX(4px);}
.panel-list .tag{font-size:11px;padding:2px 8px;border-radius:6px;background:rgba(0,229,255,.14);color:var(--neon1);margin-left:auto;font-weight:600;}

/* ========== 数据指标 ========== */
.metrics{background:linear-gradient(180deg,transparent,rgba(12,18,48,.6),transparent);}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.metric-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 24px;text-align:center;transition:.3s;
}
.metric-card:hover{transform:translateY(-6px);box-shadow:0 20px 44px rgba(124,92,255,.22);border-color:rgba(124,92,255,.4);}
.metric-card b{display:block;font-size:clamp(26px,3vw,36px);font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2;}
.metric-card span{font-size:13.5px;color:var(--txt-2);}

/* ========== 服务能力 ========== */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.svc-card{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;transition:.3s;overflow:hidden;
}
.svc-card::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius);
  background:radial-gradient(400px circle at var(--mx,50%) var(--my,0%),rgba(0,229,255,.12),transparent 60%);
  opacity:0;transition:opacity .3s;pointer-events:none;
}
.svc-card:hover{transform:translateY(-6px);border-color:rgba(0,229,255,.4);box-shadow:0 22px 46px rgba(0,0,0,.4);}
.svc-card:hover::after{opacity:1;}
.svc-icon{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;background:linear-gradient(135deg,rgba(0,229,255,.16),rgba(124,92,255,.16));
  border:1px solid rgba(0,229,255,.28);
}
.svc-icon svg{width:26px;height:26px;stroke:var(--neon1);fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.svc-card h3{font-size:17.5px;font-weight:700;margin-bottom:9px;color:var(--txt);}
.svc-card p{font-size:14px;color:var(--txt-2);line-height:1.72;}
.svc-card .link-more{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--neon1);margin-top:16px;font-weight:600;transition:.2s;}
.svc-card .link-more:hover{gap:10px;}

/* ========== 关于平台 ========== */
.about-wrap{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;}
.about-text p{color:var(--txt-2);margin-bottom:16px;font-size:15.5px;}
.about-points{list-style:none;display:grid;gap:12px;margin-top:24px;}
.about-points li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--txt);}
.about-points .ico{
  width:22px;height:22px;flex-shrink:0;border-radius:50%;margin-top:3px;
  background:linear-gradient(135deg,var(--neon1),var(--neon2));
  display:flex;align-items:center;justify-content:center;
}
.about-points .ico svg{width:12px;height:12px;stroke:#06091a;fill:none;stroke-width:3;}
.about-visual{position:relative;border-radius:22px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);}
.about-visual img{width:100%;height:100%;object-fit:cover;transition:transform .6s;}
.about-visual:hover img{transform:scale(1.04);}
.about-visual .cap{
  position:absolute;left:0;right:0;bottom:0;padding:20px;
  background:linear-gradient(0deg,rgba(5,8,22,.92),transparent);
  font-size:14px;color:var(--txt-2);
}

/* ========== 一站式 / 场景标签 ========== */
.tagcloud{display:flex;flex-wrap:wrap;gap:12px;}
.tagcloud span{
  padding:9px 18px;border-radius:999px;font-size:13.5px;font-weight:500;
  background:rgba(124,92,255,.1);border:1px solid rgba(124,92,255,.3);color:#cfd8ff;
  cursor:default;transition:.25s;
}
.tagcloud span:hover{
  background:linear-gradient(135deg,rgba(0,229,255,.2),rgba(255,79,216,.2));
  border-color:var(--neon1);color:#fff;transform:translateY(-3px);
  box-shadow:0 10px 22px rgba(0,229,255,.2);
}
.model-marquee{overflow:hidden;margin-top:28px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;}
.marquee-track{display:flex;gap:16px;width:max-content;animation:scrollX 40s linear infinite;}
.marquee-track span{
  font-size:13.5px;color:var(--txt-2);padding:7px 16px;border-radius:8px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);white-space:nowrap;
}
@keyframes scrollX{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.model-marquee:hover .marquee-track{animation-play-state:paused;}

/* ========== 流程步骤 ========== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative;}
.steps::before{
  content:"";position:absolute;top:34px;left:8%;right:8%;height:2px;
  background:linear-gradient(90deg,transparent,rgba(0,229,255,.5),rgba(124,92,255,.5),transparent);
  z-index:0;
}
.step{position:relative;z-index:1;text-align:center;padding:0 10px;}
.step-num{
  width:68px;height:68px;margin:0 auto 18px;border-radius:20px;
  display:flex;align-items:center;justify-content:center;
  font-size:22px;font-weight:800;color:#06091a;
  background:linear-gradient(135deg,var(--neon1),var(--neon2));
  box-shadow:0 10px 26px rgba(0,229,255,.28);transition:.3s;
}
.step:hover .step-num{transform:translateY(-6px) rotate(-4deg);box-shadow:0 16px 36px rgba(124,92,255,.42);}
.step h4{font-size:16.5px;margin-bottom:8px;}
.step p{font-size:13.5px;color:var(--txt-2);}

/* ========== 表格 ========== */
.table-scroll{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);background:var(--card);}
table{width:100%;border-collapse:collapse;min-width:720px;font-size:14px;}
thead th{
  background:linear-gradient(180deg,rgba(124,92,255,.2),rgba(124,92,255,.06));
  padding:16px 18px;text-align:left;font-weight:700;color:#fff;font-size:14px;
  border-bottom:1px solid var(--line);white-space:nowrap;
}
tbody td{padding:15px 18px;border-bottom:1px solid rgba(120,150,255,.1);color:var(--txt-2);vertical-align:middle;}
tbody tr:last-child td{border-bottom:none;}
tbody tr{transition:background .2s;}
tbody tr:hover{background:rgba(0,229,255,.04);}
tbody td:first-child{color:var(--txt);font-weight:600;}
.badge-good{display:inline-block;padding:3px 11px;border-radius:999px;font-size:12px;font-weight:700;background:rgba(49,255,176,.14);color:var(--neon4);}
.badge-mid{display:inline-block;padding:3px 11px;border-radius:999px;font-size:12px;font-weight:700;background:rgba(255,196,0,.14);color:#ffc400;}

/* ========== 评分卡 ========== */
.rate-card{
  background:linear-gradient(150deg,rgba(124,92,255,.18),rgba(0,229,255,.08));
  border:1px solid rgba(0,229,255,.32);border-radius:var(--radius);
  padding:34px;margin-bottom:32px;display:flex;flex-wrap:wrap;gap:30px;align-items:center;justify-content:space-between;
}
.rate-left{display:flex;gap:26px;align-items:center;flex-wrap:wrap;}
.rate-score{font-size:clamp(46px,6vw,66px);font-weight:900;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.rate-score small{font-size:18px;color:var(--txt-2);font-weight:600;}
.stars{color:#ffc400;font-size:20px;letter-spacing:3px;}
.rate-left .label{font-size:15px;color:var(--txt-2);margin-top:6px;}
.rate-tags{display:flex;flex-wrap:wrap;gap:10px;max-width:520px;}
.rate-tags span{font-size:12.5px;padding:6px 14px;border-radius:999px;background:rgba(0,229,255,.1);border:1px solid rgba(0,229,255,.26);color:#bfeaff;}

/* ========== 案例 ========== */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.case-card{
  border-radius:var(--radius);overflow:hidden;background:var(--card);border:1px solid var(--line);
  transition:.3s;display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-6px);box-shadow:0 22px 46px rgba(0,0,0,.44);border-color:rgba(255,79,216,.36);}
.case-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0a1030;}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s;}
.case-card:hover .case-thumb img{transform:scale(1.06);}
.case-thumb .cate{
  position:absolute;top:12px;left:12px;font-size:12px;padding:4px 12px;border-radius:999px;
  background:rgba(6,9,26,.72);border:1px solid rgba(0,229,255,.4);color:var(--neon1);backdrop-filter:blur(6px);
}
.case-body{padding:20px 22px 24px;flex:1;}
.case-body h4{font-size:16.5px;margin-bottom:8px;}
.case-body p{font-size:13.5px;color:var(--txt-2);line-height:1.7;}
.case-body .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.case-body .tags i{font-style:normal;font-size:11.5px;padding:3px 10px;border-radius:6px;background:rgba(124,92,255,.14);color:#c9d2ff;}

/* ========== 评论 ========== */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.review-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:.3s;position:relative;display:flex;flex-direction:column;
}
.review-card:hover{transform:translateY(-6px);box-shadow:0 20px 44px rgba(0,0,0,.4);border-color:rgba(49,255,176,.34);}
.review-quote{font-size:44px;line-height:1;color:rgba(0,229,255,.28);font-family:Georgia,serif;margin-bottom:4px;}
.review-card p{font-size:14px;color:var(--txt-2);flex:1;margin-bottom:20px;}
.review-user{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid rgba(120,150,255,.12);}
.review-avatar{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;color:#06091a;
  background:linear-gradient(135deg,var(--neon1),var(--neon2));
}
.review-user b{display:block;font-size:14px;color:var(--txt);}
.review-user span{font-size:12.5px;color:var(--txt-3);}

/* ========== Token 比价 ========== */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:36px;}
.price-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;transition:.3s;position:relative;
}
.price-card.featured{
  border-color:rgba(0,229,255,.5);
  background:linear-gradient(160deg,rgba(0,229,255,.12),rgba(124,92,255,.14));
  box-shadow:0 16px 40px rgba(0,229,255,.16);
}
.price-card:hover{transform:translateY(-6px);box-shadow:0 20px 42px rgba(124,92,255,.26);}
.price-card .plan{font-size:15px;font-weight:700;color:var(--txt-2);margin-bottom:10px;display:flex;align-items:center;gap:8px;}
.price-card .plan .hot{font-size:11px;padding:2px 9px;border-radius:6px;background:var(--grad);color:#06091a;font-weight:800;}
.price-card .amount{font-size:38px;font-weight:900;line-height:1.1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.price-card .amount small{font-size:14px;color:var(--txt-3);font-weight:600;-webkit-text-fill-color:var(--txt-3);}
.price-card ul{list-style:none;margin:20px 0 22px;display:grid;gap:10px;}
.price-card ul li{font-size:13.5px;color:var(--txt-2);display:flex;gap:9px;align-items:flex-start;}
.price-card ul li::before{content:"✓";color:var(--neon4);font-weight:800;flex-shrink:0;}

/* ========== 时间线 ========== */
.timeline{position:relative;padding-left:34px;}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--neon1),var(--neon2),transparent);}
.tl-item{position:relative;padding-bottom:32px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-31px;top:6px;width:16px;height:16px;border-radius:50%;
  background:var(--bg);border:3px solid var(--neon1);box-shadow:0 0 14px rgba(0,229,255,.7);
}
.tl-item h4{font-size:16.5px;margin-bottom:6px;}
.tl-item .yr{font-size:12.5px;color:var(--neon1);font-weight:700;letter-spacing:.08em;margin-bottom:4px;}
.tl-item p{font-size:14px;color:var(--txt-2);}

/* ========== 服务网络 ========== */
.net-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.net-card{
  background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px 22px;transition:.3s;
}
.net-card:hover{border-color:rgba(0,229,255,.4);transform:translateY(-5px);box-shadow:0 16px 34px rgba(0,0,0,.36);}
.net-card h4{font-size:15.5px;margin-bottom:8px;color:var(--txt);}
.net-card p{font-size:13px;color:var(--txt-2);}

/* ========== FAQ ========== */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto;}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.25s;}
.faq-item.open{border-color:rgba(0,229,255,.42);box-shadow:0 12px 30px rgba(0,229,255,.1);}
.faq-q{
  width:100%;text-align:left;background:none;border:none;color:var(--txt);
  padding:20px 24px;font-size:15.5px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-family:inherit;transition:.2s;
}
.faq-q:hover{color:var(--neon1);}
.faq-q .ic{
  width:26px;height:26px;flex-shrink:0;border-radius:50%;border:1px solid rgba(0,229,255,.4);
  display:flex;align-items:center;justify-content:center;transition:.3s;position:relative;
}
.faq-q .ic::before,.faq-q .ic::after{content:"";position:absolute;background:var(--neon1);border-radius:2px;}
.faq-q .ic::before{width:12px;height:2px;}
.faq-q .ic::after{width:2px;height:12px;transition:.3s;}
.faq-item.open .faq-q .ic::after{transform:scaleY(0);}
.faq-item.open .faq-q .ic{background:rgba(0,229,255,.14);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-a p{padding:0 24px 22px;font-size:14px;color:var(--txt-2);line-height:1.8;}

/* ========== 文章 / 资讯 ========== */
.article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.article-item{
  background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px 24px;
  transition:.3s;display:flex;flex-direction:column;
}
.article-item:hover{border-color:rgba(255,79,216,.34);transform:translateY(-4px);box-shadow:0 16px 34px rgba(0,0,0,.34);}
.article-item .meta{font-size:12px;color:var(--neon3);font-weight:700;letter-spacing:.06em;margin-bottom:8px;}
.article-item h4{font-size:16px;margin-bottom:8px;line-height:1.5;}
.article-item p{font-size:13.5px;color:var(--txt-2);flex:1;}
.article-item a{font-size:13px;color:var(--neon1);margin-top:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.article-item a:hover{gap:10px;}

/* ========== 表单 ========== */
.form-wrap{
  display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:start;
  background:linear-gradient(155deg,rgba(19,27,63,.7),rgba(10,16,42,.7));
  border:1px solid var(--line);border-radius:24px;padding:44px;box-shadow:var(--shadow);
}
.form-side h3{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px;line-height:1.3;}
.form-side p{font-size:14.5px;color:var(--txt-2);margin-bottom:22px;}
.contact-list{list-style:none;display:grid;gap:14px;}
.contact-list li{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--txt-2);}
.contact-list .ci{
  width:34px;height:34px;flex-shrink:0;border-radius:9px;display:flex;align-items:center;justify-content:center;
  background:rgba(0,229,255,.1);border:1px solid rgba(0,229,255,.24);
}
.contact-list .ci svg{width:16px;height:16px;stroke:var(--neon1);fill:none;stroke-width:1.9;}
.contact-list b{color:var(--txt);display:block;font-size:13.5px;}
.contact-list span{font-size:13px;color:var(--txt-2);word-break:break-all;}
.qr-box{margin-top:20px;display:flex;gap:14px;align-items:center;}
.qr-box img{width:96px;height:96px;border-radius:10px;border:1px solid var(--line);object-fit:cover;}
.qr-box small{color:var(--txt-3);font-size:12.5px;}

form .field{margin-bottom:16px;}
form label{display:block;font-size:13.5px;color:var(--txt-2);margin-bottom:7px;font-weight:600;}
form label .req{color:var(--neon3);}
form input,form select,form textarea{
  width:100%;padding:13px 16px;border-radius:11px;font-size:14px;font-family:inherit;
  background:rgba(7,11,28,.7);border:1px solid rgba(120,150,255,.24);color:var(--txt);
  transition:.22s;outline:none;
}
form input::placeholder,form textarea::placeholder{color:var(--txt-3);}
form input:focus,form select:focus,form textarea:focus{
  border-color:var(--neon1);box-shadow:0 0 0 3px rgba(0,229,255,.12);background:rgba(7,11,28,.95);
}
form select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--neon1) 50%),linear-gradient(135deg,var(--neon1) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 15px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
form textarea{resize:vertical;min-height:110px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
form .btn-primary{width:100%;padding:15px;font-size:15.5px;margin-top:6px;}

/* ========== 友情链接 & 页脚 ========== */
.links-cloud{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
.links-cloud a{
  font-size:13px;color:var(--txt-2);padding:8px 16px;border-radius:9px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);transition:.25s;
}
.links-cloud a:hover{color:var(--neon1);border-color:rgba(0,229,255,.42);transform:translateY(-2px);background:rgba(0,229,255,.06);}

.site-footer{background:linear-gradient(180deg,transparent,rgba(12,18,48,.9));border-top:1px solid var(--line);padding:64px 0 30px;margin-top:40px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;margin-bottom:44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--txt-2);max-width:320px;margin-bottom:16px;}
.footer-col h5{font-size:14.5px;margin-bottom:16px;color:var(--txt);font-weight:700;}
.footer-col ul{list-style:none;display:grid;gap:10px;}
.footer-col ul li a{font-size:13.5px;color:var(--txt-2);transition:.2s;}
.footer-col ul li a:hover{color:var(--neon1);padding-left:4px;}
.footer-col ul li{font-size:13.5px;color:var(--txt-2);}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:24px;display:flex;flex-wrap:wrap;
  gap:12px;justify-content:space-between;font-size:12.5px;color:var(--txt-3);
}
.footer-bottom a{color:var(--txt-2);}
.footer-bottom a:hover{color:var(--neon1);}

/* ========== 浮动 ========== */
.float-kf{position:fixed;right:24px;bottom:96px;z-index:800;}
.float-kf .kf-btn{
  width:58px;height:58px;border-radius:50%;border:none;cursor:pointer;
  background:linear-gradient(135deg,var(--neon1),var(--neon2));
  display:flex;align-items:center;justify-content:center;box-shadow:0 10px 30px rgba(0,229,255,.42);
  transition:.3s;
}
.float-kf .kf-btn:hover{transform:translateY(-4px) scale(1.05);box-shadow:0 16px 40px rgba(124,92,255,.5);}
.float-kf .kf-btn svg{width:26px;height:26px;stroke:#06091a;fill:none;stroke-width:2;}
.kf-pop{
  position:absolute;right:0;bottom:72px;width:210px;border-radius:16px;padding:16px;
  background:var(--card-2);border:1px solid rgba(0,229,255,.4);box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:.28s;
}
.kf-pop.show{opacity:1;visibility:visible;transform:translateY(0);}
.kf-pop h6{font-size:13.5px;margin-bottom:10px;color:var(--neon1);}
.kf-pop img{width:100%;border-radius:10px;margin-bottom:10px;}
.kf-pop p{font-size:12.5px;color:var(--txt-2);line-height:1.6;}
.back-top{
  position:fixed;right:24px;bottom:24px;z-index:800;width:46px;height:46px;border-radius:50%;
  background:rgba(19,27,63,.9);border:1px solid rgba(120,150,255,.34);cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:.3s;opacity:0;visibility:hidden;
  backdrop-filter:blur(10px);
}
.back-top.show{opacity:1;visibility:visible;}
.back-top:hover{background:rgba(0,229,255,.16);border-color:var(--neon1);transform:translateY(-3px);}
.back-top svg{width:20px;height:20px;stroke:var(--neon1);fill:none;stroke-width:2.4;}

/* ========== 动画 ========== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1);}
.reveal.in{opacity:1;transform:none;}
.d1{transition-delay:.08s;}.d2{transition-delay:.16s;}.d3{transition-delay:.24s;}.d4{transition-delay:.32s;}

/* ========== 响应式 ========== */
@media (max-width:1080px){
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;
    background:rgba(9,13,34,.98);backdrop-filter:blur(20px);border-bottom:1px solid var(--line);
    padding:14px 20px 22px;gap:2px;max-height:70vh;overflow-y:auto;}
  .nav-links.open{display:flex;}
  .nav-links a{padding:12px 14px;font-size:15px;}
  .menu-toggle{display:flex;}
  .nav-actions .btn-ghost{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-panel{max-width:520px;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .card-grid,.case-grid,.review-grid,.price-grid{grid-template-columns:repeat(2,1fr);}
  .about-wrap{grid-template-columns:1fr;gap:34px;}
  .steps{grid-template-columns:repeat(2,1fr);gap:30px;}
  .steps::before{display:none;}
  .net-grid{grid-template-columns:repeat(2,1fr);}
  .form-wrap{grid-template-columns:1fr;padding:32px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:680px){
  .sec-pad{padding:60px 0;}
  .container{padding:0 16px;}
  .hero{padding:56px 0 56px;}
  .brand-name{font-size:16px;}
  .nav-actions .btn-primary{padding:9px 16px;font-size:13px;}
  .hero-cta .btn-primary,.hero-cta .btn-ghost{width:100%;}
  .metric-grid{grid-template-columns:1fr 1fr;gap:14px;}
  .metric-card{padding:22px 14px;}
  .card-grid,.case-grid,.review-grid,.price-grid,.article-list,.net-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr 1fr;gap:24px;}
  .step-num{width:56px;height:56px;font-size:19px;border-radius:16px;}
  .form-row{grid-template-columns:1fr;}
  .form-wrap{padding:24px 18px;border-radius:18px;}
  .rate-card{padding:24px 20px;gap:20px;}
  .rate-left{gap:16px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .float-kf{right:16px;bottom:84px;}
  .back-top{right:16px;bottom:16px;}
  .kf-pop{width:190px;}
  .faq-q{padding:16px 18px;font-size:14.5px;}
  .faq-a p{padding:0 18px 18px;}
  .table-scroll table{min-width:640px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;}
  html{scroll-behavior:auto;}
}