/* ==========================================================================
   锐立人工智能 RuiLi AI — 官方门户 设计系统
   主题：深空底 + 科技蓝  玻璃拟态 / 光效 / 网格
   ========================================================================== */

:root{
  --bg:            #04070f;
  --bg-soft:       #070c18;
  --bg-elev:       #0b1222;

  --panel:         rgba(17,27,50,.55);
  --panel-solid:   #0c1425;
  --line:          rgba(112,158,255,.14);
  --line-strong:   rgba(112,158,255,.32);

  --text:          #e9efff;
  --text-2:        #b3c2de;
  --muted:         #8195b8;

  --brand:         #3f7bff;
  --brand-soft:    #6fa8ff;
  --cyan:          #22e1ff;
  --violet:        #7c6bff;

  --grad:          linear-gradient(135deg,#5b93ff 0%,#3f7bff 45%,#22e1ff 100%);
  --grad-text:     linear-gradient(100deg,#9dc2ff 0%,#5b93ff 40%,#22e1ff 85%);

  --glow:          0 18px 50px -18px rgba(63,123,255,.75);
  --glow-cyan:     0 18px 50px -18px rgba(34,225,255,.6);

  --radius:        18px;
  --radius-lg:     26px;
  --radius-sm:     12px;

  --nav-h:         72px;
  --maxw:          1200px;

  --font: "Inter","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Segoe UI",
          system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --mono: "JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;

  --ease: cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img,svg{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
button{ font:inherit; color:inherit; }

::selection{ background:rgba(63,123,255,.35); color:#fff; }

/* 滚动条 ---------------------------------------------------------------- */
::-webkit-scrollbar{ width:10px; height:10px; }
::-webkit-scrollbar-track{ background:#05090f; }
::-webkit-scrollbar-thumb{
  background:linear-gradient(#233b6d,#16233d);
  border-radius:8px; border:2px solid #05090f;
}
::-webkit-scrollbar-thumb:hover{ background:linear-gradient(#31518f,#1d2f52); }

/* ==========================================================================
   全局背景层：网格 + 光晕
   ========================================================================== */
.bg-layers{ position:fixed; inset:0; z-index:-1; pointer-events:none; overflow:hidden; }

.bg-grid{
  position:absolute; inset:-2px;
  background-image:
    linear-gradient(rgba(112,158,255,.075) 1px,transparent 1px),
    linear-gradient(90deg,rgba(112,158,255,.075) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse 90% 65% at 50% 0%,#000 0%,transparent 78%);
          mask-image:radial-gradient(ellipse 90% 65% at 50% 0%,#000 0%,transparent 78%);
}
.bg-orb{ position:absolute; border-radius:50%; filter:blur(90px); opacity:.5; }
.bg-orb.a{
  width:620px; height:620px; top:-260px; left:-140px;
  background:radial-gradient(circle,rgba(63,123,255,.55),transparent 68%);
  animation:drift 22s var(--ease) infinite alternate;
}
.bg-orb.b{
  width:560px; height:560px; top:-180px; right:-160px;
  background:radial-gradient(circle,rgba(34,225,255,.32),transparent 68%);
  animation:drift 28s var(--ease) infinite alternate-reverse;
}
.bg-orb.c{
  width:700px; height:700px; bottom:-420px; left:32%;
  background:radial-gradient(circle,rgba(124,107,255,.26),transparent 70%);
  animation:drift 32s var(--ease) infinite alternate;
}
@keyframes drift{
  from{ transform:translate3d(0,0,0) scale(1); }
  to  { transform:translate3d(60px,50px,0) scale(1.12); }
}

/* ==========================================================================
   布局
   ========================================================================== */
.container{ width:min(var(--maxw),calc(100% - 48px)); margin-inline:auto; }
.section{ padding:104px 0; position:relative; }
.section--tight{ padding:72px 0; }

/* 标题 ---------------------------------------------------------------- */
.eyebrow{
  display:inline-flex; align-items:center; gap:9px;
  font-size:12.5px; font-weight:600; letter-spacing:.22em; text-transform:uppercase;
  color:var(--brand-soft); margin:0 0 18px;
}
.eyebrow::before{
  content:""; width:26px; height:1px;
  background:linear-gradient(90deg,transparent,var(--brand-soft));
}
.eyebrow--center::after{
  content:""; width:26px; height:1px;
  background:linear-gradient(90deg,var(--brand-soft),transparent);
}

h1,h2,h3,h4{ margin:0; line-height:1.22; letter-spacing:-.015em; font-weight:700; }
.h-sec{ font-size:clamp(28px,3.6vw,44px); }
.h-sec .grad{
  background:var(--grad-text); -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color:transparent;
}
.sec-head{ max-width:760px; margin-bottom:56px; }
.sec-head--center{ margin-inline:auto; text-align:center; }
.sec-head p{ color:var(--muted); font-size:16.5px; margin:18px 0 0; }
.sec-head--center p{ margin-inline:auto; max-width:620px; }

/* ==========================================================================
   导航
   ========================================================================== */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:100;
  height:var(--nav-h); display:flex; align-items:center;
  transition:background .4s var(--ease),border-color .4s var(--ease),backdrop-filter .4s;
  border-bottom:1px solid transparent;
}
.site-header.is-stuck{
  background:rgba(5,9,17,.72);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
          backdrop-filter:blur(18px) saturate(150%);
  border-bottom-color:var(--line);
}
/* 注意：不要给 .nav 设 width:100%，否则会覆盖 .container 的最大宽度，
   导致 Logo 与按钮被推到屏幕最两侧；此处必须沿用 .container 的宽度（与首页 banner 对齐） */
.nav{ display:flex; align-items:center; justify-content:space-between; gap:24px; }
.brand{ display:flex; align-items:center; gap:12px; flex-shrink:0; }
.brand-mark{ width:38px; height:38px; }
.brand-text{ display:flex; flex-direction:column; line-height:1.15; }
.brand-cn{ font-size:17px; font-weight:700; letter-spacing:.06em; }
.brand-en{ font-size:9.5px; letter-spacing:.28em; color:var(--muted); font-weight:600; }

.nav-links{ display:flex; align-items:center; gap:4px; list-style:none; margin:0; padding:0; }
.nav-links a{
  position:relative; display:block; padding:9px 15px; border-radius:10px;
  font-size:14.5px; color:var(--text-2); transition:color .25s,background .25s;
}
.nav-links a::after{
  content:""; position:absolute; left:50%; bottom:3px; width:0; height:1.5px;
  background:var(--grad); border-radius:2px; transform:translateX(-50%);
  transition:width .3s var(--ease);
}
.nav-links a:hover{ color:#fff; background:rgba(112,158,255,.08); }
.nav-links a:hover::after,.nav-links a.is-active::after{ width:20px; }
.nav-links a.is-active{ color:#fff; }

.nav-cta{ display:flex; align-items:center; gap:12px; }
.nav-toggle{
  display:none; width:42px; height:42px; border-radius:12px; cursor:pointer;
  background:rgba(112,158,255,.08); border:1px solid var(--line);
  align-items:center; justify-content:center; flex-direction:column; gap:5px;
}
.nav-toggle span{
  display:block; width:17px; height:1.6px; background:var(--text);
  border-radius:2px; transition:transform .3s var(--ease),opacity .3s;
}
.nav-toggle.is-open span:nth-child(1){ transform:translateY(6.6px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2){ opacity:0; }
.nav-toggle.is-open span:nth-child(3){ transform:translateY(-6.6px) rotate(-45deg); }

/* ==========================================================================
   按钮
   ========================================================================== */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:9px;
  padding:12px 24px; border-radius:12px; border:1px solid transparent;
  font-size:14.5px; font-weight:600; letter-spacing:.02em; cursor:pointer;
  position:relative; overflow:hidden; white-space:nowrap;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),
             background .28s,border-color .28s,color .28s;
}
.btn svg{ width:16px; height:16px; }
.btn:hover{ transform:translateY(-2px); }

.btn--primary{ background:var(--grad); color:#04101f; box-shadow:var(--glow); }
.btn--primary:hover{ box-shadow:0 22px 58px -16px rgba(63,123,255,.9); }
.btn--primary::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(120deg,transparent 20%,rgba(255,255,255,.5) 50%,transparent 80%);
  transform:translateX(-120%); transition:transform .7s var(--ease);
}
.btn--primary:hover::after{ transform:translateX(120%); }

.btn--ghost{ background:rgba(112,158,255,.07); border-color:var(--line-strong); color:var(--text); }
.btn--ghost:hover{ background:rgba(112,158,255,.14); border-color:rgba(112,158,255,.5); }

.btn--lg{ padding:15px 32px; font-size:15.5px; border-radius:14px; }
.btn--sm{ padding:9px 18px; font-size:13.5px; border-radius:10px; }

.link-arrow{
  display:inline-flex; align-items:center; gap:7px; font-size:14px;
  font-weight:600; color:var(--brand-soft); transition:gap .28s var(--ease),color .25s;
}
.link-arrow:hover{ gap:12px; color:var(--cyan); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position:relative; padding:calc(var(--nav-h) + 92px) 0 96px;
  overflow:hidden;
}
#heroCanvas{
  position:absolute; inset:0; width:100%; height:100%;
  opacity:.75; pointer-events:none;
}
.hero-inner{ position:relative; z-index:2; display:grid;
  grid-template-columns:1.06fr .94fr; gap:64px; align-items:center; }

.hero-badge{
  display:inline-flex; align-items:center; gap:10px;
  padding:7px 15px 7px 8px; border-radius:100px;
  background:rgba(112,158,255,.08); border:1px solid var(--line);
  font-size:13px; color:var(--text-2); margin-bottom:28px;
  -webkit-backdrop-filter:blur(8px); backdrop-filter:blur(8px);
}
.hero-badge b{
  display:inline-flex; align-items:center; gap:6px;
  padding:3px 10px; border-radius:100px; font-size:11.5px; font-weight:700;
  background:var(--grad); color:#04101f; letter-spacing:.04em;
}
.dot-live{
  width:6px; height:6px; border-radius:50%; background:#22e1ff;
  box-shadow:0 0 0 0 rgba(34,225,255,.7); animation:pulse 2.2s infinite;
}
@keyframes pulse{
  0%{ box-shadow:0 0 0 0 rgba(34,225,255,.6); }
  70%{ box-shadow:0 0 0 9px rgba(34,225,255,0); }
  100%{ box-shadow:0 0 0 0 rgba(34,225,255,0); }
}

.hero h1{
  font-size:clamp(36px,5.1vw,62px); font-weight:800; letter-spacing:-.03em;
  margin-bottom:24px;
}
.hero h1 .grad{
  background:var(--grad-text); -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color:transparent;
}
.hero-lead{ font-size:17.5px; color:var(--text-2); max-width:560px; margin:0 0 38px; }
.hero-actions{ display:flex; flex-wrap:wrap; gap:14px; margin-bottom:44px; }

.hero-metrics{ display:flex; flex-wrap:wrap; gap:38px; }
.hero-metrics .m-num{
  font-size:30px; font-weight:800; letter-spacing:-.02em;
  background:var(--grad-text); -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color:transparent;
}
.hero-metrics .m-num span{ font-size:16px; font-weight:700; }
.hero-metrics .m-label{ font-size:13px; color:var(--muted); }

/* Hero 右侧可视化面板 */
.hero-visual{ position:relative; }
.hero-card{
  position:relative; padding:22px; border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(24,38,70,.85),rgba(9,15,28,.92));
  border:1px solid var(--line-strong);
  box-shadow:0 40px 90px -40px rgba(6,14,32,.95),inset 0 1px 0 rgba(255,255,255,.05);
  -webkit-backdrop-filter:blur(14px); backdrop-filter:blur(14px);
}
.hero-card::before{
  content:""; position:absolute; inset:-1px; border-radius:inherit; padding:1px;
  background:linear-gradient(160deg,rgba(111,168,255,.55),transparent 42%,rgba(34,225,255,.4));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor; mask-composite:exclude; pointer-events:none;
}
.hc-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:18px; }
.hc-title{ font-size:13px; font-weight:600; color:var(--text-2); letter-spacing:.06em; }
.hc-dots{ display:flex; gap:6px; }
.hc-dots i{ width:8px; height:8px; border-radius:50%; background:rgba(112,158,255,.28); }
.hc-dots i:first-child{ background:#3f7bff; }

.bars{ display:flex; align-items:flex-end; gap:10px; height:132px; padding:0 4px; }
.bar{
  flex:1; border-radius:7px 7px 3px 3px; position:relative;
  background:linear-gradient(180deg,rgba(63,123,255,.95),rgba(34,225,255,.28));
  box-shadow:0 0 22px -4px rgba(63,123,255,.6);
  animation:barRise 1.1s var(--ease) both;
}
@keyframes barRise{ from{ height:4px !important; opacity:.2; } }
.bar::after{
  content:attr(data-v); position:absolute; top:-19px; left:50%; transform:translateX(-50%);
  font-size:10px; font-family:var(--mono); color:var(--muted); white-space:nowrap;
}
.hc-foot{ display:flex; gap:18px; margin-top:20px; padding-top:18px;
  border-top:1px solid var(--line); }
.hc-foot div{ flex:1; }
.hc-foot .k{ font-size:11px; color:var(--muted); letter-spacing:.08em; }
.hc-foot .v{ font-size:19px; font-weight:700; }
.hc-foot .v em{ font-style:normal; font-size:12px; color:var(--cyan); }

.float-chip{
  position:absolute; display:flex; align-items:center; gap:9px;
  padding:11px 16px; border-radius:14px; font-size:13px; font-weight:600;
  background:rgba(11,19,36,.9); border:1px solid var(--line-strong);
  box-shadow:0 24px 50px -22px rgba(0,0,0,.9);
  -webkit-backdrop-filter:blur(12px); backdrop-filter:blur(12px);
  animation:floaty 6s var(--ease) infinite alternate;
}
.float-chip svg{ width:15px; height:15px; }
.float-chip.c1{ top:-22px; right:22px; }
.float-chip.c2{ bottom:-24px; left:-16px; animation-delay:-2.4s; }
@keyframes floaty{ from{ transform:translateY(-8px); } to{ transform:translateY(8px); } }

/* ==========================================================================
   通用卡片 / 栅格
   ========================================================================== */
.grid{ display:grid; gap:22px; }
.g-2{ grid-template-columns:repeat(2,1fr); }
.g-3{ grid-template-columns:repeat(3,1fr); }
.g-4{ grid-template-columns:repeat(4,1fr); }

.card{
  position:relative; padding:30px; border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(20,31,56,.62),rgba(9,15,28,.55));
  border:1px solid var(--line);
  transition:transform .4s var(--ease),border-color .4s,box-shadow .4s,background .4s;
  overflow:hidden;
}
.card::after{
  content:""; position:absolute; width:280px; height:280px; border-radius:50%;
  top:var(--my,0); left:var(--mx,0); transform:translate(-50%,-50%);
  background:radial-gradient(circle,rgba(63,123,255,.16),transparent 68%);
  opacity:0; transition:opacity .4s; pointer-events:none;
}
.card:hover{
  transform:translateY(-6px); border-color:var(--line-strong);
  box-shadow:0 34px 70px -34px rgba(6,14,32,.95);
}
.card:hover::after{ opacity:1; }
.card h3{ font-size:19px; margin-bottom:12px; }
.card p{ color:var(--muted); font-size:14.5px; margin:0; }

.icon-box{
  width:50px; height:50px; border-radius:14px; display:grid; place-items:center;
  margin-bottom:22px; position:relative;
  background:linear-gradient(150deg,rgba(63,123,255,.22),rgba(34,225,255,.09));
  border:1px solid var(--line-strong); color:var(--brand-soft);
}
.icon-box svg{ width:23px; height:23px; }
.card:hover .icon-box{ color:var(--cyan); }

.card-num{
  position:absolute; top:22px; right:26px; font-family:var(--mono);
  font-size:12px; color:rgba(112,158,255,.4); letter-spacing:.1em;
}

/* 解决/能力 列表 */
.tick-list{ list-style:none; margin:20px 0 0; padding:0; display:grid; gap:9px; }
.tick-list li{
  position:relative; padding-left:24px; font-size:14px; color:var(--text-2);
}
.tick-list li::before{
  content:""; position:absolute; left:0; top:8px; width:13px; height:13px;
  border-radius:4px; background:var(--grad); opacity:.85;
}
.tick-list li::after{
  content:""; position:absolute; left:4.4px; top:12px; width:4px; height:7px;
  border-right:1.8px solid #04101f; border-bottom:1.8px solid #04101f;
  transform:rotate(42deg);
}

/* ==========================================================================
   解决方案 标签切换
   ========================================================================== */
.tabs{ display:flex; flex-wrap:wrap; gap:10px; margin-bottom:34px; }
.tab{
  padding:10px 20px; border-radius:100px; cursor:pointer; font-size:14px; font-weight:600;
  background:rgba(112,158,255,.06); border:1px solid var(--line); color:var(--text-2);
  transition:all .3s var(--ease);
}
.tab:hover{ border-color:var(--line-strong); color:#fff; }
.tab.is-active{
  background:var(--grad); color:#04101f; border-color:transparent;
  box-shadow:0 12px 30px -12px rgba(63,123,255,.85);
}
.tab-panel{ display:none; animation:fadeUp .5s var(--ease); }
.tab-panel.is-active{ display:grid; }
.tab-panel{ gap:34px; grid-template-columns:1.05fr .95fr; align-items:center; }
.tp-body h3{ font-size:26px; margin-bottom:16px; }
.tp-body p{ color:var(--muted); font-size:15px; }
.tp-tags{ display:flex; flex-wrap:wrap; gap:8px; margin:24px 0 26px; }
.chip{
  padding:6px 13px; border-radius:8px; font-size:12.5px; color:var(--brand-soft);
  background:rgba(63,123,255,.1); border:1px solid var(--line);
}
.tp-visual{
  border-radius:var(--radius); padding:26px; min-height:250px;
  background:linear-gradient(160deg,rgba(20,31,56,.75),rgba(9,15,28,.7));
  border:1px solid var(--line-strong); display:grid; place-content:center; gap:16px;
}
.flow{ display:grid; gap:12px; width:100%; }
.flow-row{
  display:flex; align-items:center; gap:12px; padding:13px 16px; border-radius:12px;
  background:rgba(112,158,255,.06); border:1px solid var(--line); font-size:13.5px;
}
.flow-row i{
  width:8px; height:8px; border-radius:50%; background:var(--cyan); flex-shrink:0;
  box-shadow:0 0 12px rgba(34,225,255,.9);
}
.flow-row span{ margin-left:auto; font-family:var(--mono); font-size:11.5px; color:var(--muted); }

/* ==========================================================================
   数据条 / 客户
   ========================================================================== */
.stats{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:var(--line); border:1px solid var(--line);
  border-radius:var(--radius); overflow:hidden;
}
.stat{
  background:linear-gradient(170deg,rgba(17,27,50,.7),rgba(8,13,25,.85));
  padding:38px 28px; text-align:center; transition:background .4s;
}
.stat:hover{ background:linear-gradient(170deg,rgba(26,42,76,.8),rgba(10,17,32,.9)); }
.stat b{
  display:block; font-size:clamp(32px,3.4vw,44px); font-weight:800; letter-spacing:-.03em;
  background:var(--grad-text); -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color:transparent; line-height:1.1;
}
.stat span{ font-size:13.5px; color:var(--muted); }

.logo-wall{ display:grid; grid-template-columns:repeat(6,1fr); gap:1px;
  background:var(--line); border:1px solid var(--line); border-radius:var(--radius);
  overflow:hidden; }
.logo-wall div{
  display:grid; place-items:center; padding:30px 12px; font-size:14px; font-weight:600;
  color:rgba(179,194,222,.5); background:rgba(10,17,32,.6);
  transition:color .35s,background .35s; letter-spacing:.06em;
}
.logo-wall div:hover{ color:#fff; background:rgba(24,38,70,.85); }

/* ==========================================================================
   时间轴 / 里程碑
   ========================================================================== */
.timeline{ position:relative; padding-left:32px; }
.timeline::before{
  content:""; position:absolute; left:6px; top:6px; bottom:6px; width:1.5px;
  background:linear-gradient(180deg,transparent,var(--brand),var(--cyan),transparent);
  opacity:.5;
}
.tl-item{ position:relative; padding-bottom:38px; }
.tl-item:last-child{ padding-bottom:0; }
.tl-item::before{
  content:""; position:absolute; left:-32px; top:6px; width:13px; height:13px;
  border-radius:50%; background:var(--bg-elev); border:2px solid var(--brand);
  box-shadow:0 0 0 4px rgba(63,123,255,.14);
}
.tl-item:hover::before{ border-color:var(--cyan); box-shadow:0 0 0 4px rgba(34,225,255,.18); }
.tl-year{ font-family:var(--mono); font-size:13px; color:var(--cyan); letter-spacing:.08em; }
.tl-item h4{ font-size:17px; margin:8px 0 8px; }
.tl-item p{ color:var(--muted); font-size:14px; margin:0; }

/* ==========================================================================
   新闻
   ========================================================================== */
.news-card{ display:flex; flex-direction:column; overflow:hidden; padding:0; }
.news-thumb{
  height:188px; position:relative; overflow:hidden;
  background:linear-gradient(150deg,#132a5e,#0a1730 60%,#082033);
}
.news-thumb > img{
  width:100%; height:100%; object-fit:cover; display:block;
  transition:transform .7s var(--ease);
}
.news-card:hover .news-thumb > img{ transform:scale(1.07); }
.news-thumb::after{
  content:""; position:absolute; inset:0; pointer-events:none; z-index:1;
  background:
    linear-gradient(180deg,rgba(4,8,16,.06) 0%,rgba(4,8,16,.40) 52%,rgba(4,8,16,.88) 100%),
    linear-gradient(125deg,rgba(63,123,255,.24),rgba(34,225,255,.10) 75%);
}
.news-thumb span{
  position:absolute; left:18px; top:18px; z-index:2; padding:5px 12px; border-radius:8px;
  font-size:11.5px; font-weight:700; letter-spacing:.08em;
  background:rgba(4,10,22,.72); border:1px solid var(--line-strong); color:var(--cyan);
  -webkit-backdrop-filter:blur(6px); backdrop-filter:blur(6px);
}
.feature-news{
  display:grid; grid-template-columns:1.05fr .95fr; gap:0;
  padding:0; overflow:hidden;
}
.feature-news .news-thumb{ height:100%; min-height:300px; }
.news-body{ padding:24px; display:flex; flex-direction:column; flex:1; }
.news-date{ font-family:var(--mono); font-size:12px; color:var(--muted); margin-bottom:10px; }
.news-body h3{ font-size:16.5px; line-height:1.5; margin-bottom:12px; }
.news-body p{ font-size:13.5px; color:var(--muted); flex:1; }
.news-body .link-arrow{ margin-top:16px; }

/* 图片版式 */
.photo{
  margin:0; position:relative; overflow:hidden; border-radius:var(--radius);
  border:1px solid var(--line); background:var(--bg-elev);
}
.photo img{
  width:100%; height:100%; object-fit:cover; display:block; aspect-ratio:16/10;
  transition:transform .7s var(--ease);
}
.photo:hover img{ transform:scale(1.04); }
.photo figcaption{
  position:absolute; left:0; right:0; bottom:0; z-index:2;
  padding:52px 22px 18px; font-size:14px; color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(4,8,16,.92));
}
.photo--wide img{ aspect-ratio:21/9; }

/* ==========================================================================
   CTA 区块
   ========================================================================== */
.cta-band{
  position:relative; overflow:hidden; border-radius:var(--radius-lg);
  padding:66px 56px; text-align:center;
  background:linear-gradient(140deg,rgba(28,48,96,.85),rgba(10,17,32,.9));
  border:1px solid var(--line-strong);
}
.cta-band::before{
  content:""; position:absolute; width:520px; height:520px; top:-260px; left:50%;
  transform:translateX(-50%); border-radius:50%;
  background:radial-gradient(circle,rgba(63,123,255,.4),transparent 66%);
  filter:blur(28px);
}
.cta-band > *{ position:relative; z-index:2; }
.cta-band h2{ font-size:clamp(26px,3.4vw,38px); margin-bottom:16px; }
.cta-band p{ color:var(--text-2); max-width:560px; margin:0 auto 32px; }
.cta-actions{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }

/* ==========================================================================
   页面横幅（内页）
   ========================================================================== */
.page-hero{
  padding:calc(var(--nav-h) + 76px) 0 68px; text-align:center; position:relative;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:""; position:absolute; inset:0; z-index:-1;
  background:radial-gradient(ellipse 70% 100% at 50% 0%,rgba(63,123,255,.2),transparent 70%);
}
.crumb{ font-size:13px; color:var(--muted); margin-bottom:18px; }
.crumb a:hover{ color:var(--cyan); }
.crumb i{ font-style:normal; margin:0 8px; opacity:.5; }
.page-hero h1{ font-size:clamp(30px,4.2vw,50px); margin-bottom:18px; }
.page-hero p{ color:var(--muted); max-width:640px; margin:0 auto; font-size:16.5px; }

/* ==========================================================================
   联系页
   ========================================================================== */
.contact-grid{ display:grid; grid-template-columns:1fr 1.15fr; gap:44px; align-items:start; }
.info-item{ display:flex; gap:16px; padding:22px 0; border-bottom:1px solid var(--line); }
.info-item:last-child{ border-bottom:0; }
.info-item .icon-box{ margin:0; width:44px; height:44px; border-radius:12px; flex-shrink:0; }
.info-item h4{ font-size:14px; color:var(--muted); font-weight:600; margin-bottom:5px; letter-spacing:.05em; }
.info-item p{ margin:0; font-size:15.5px; }

.form-card{ padding:36px; border-radius:var(--radius-lg); }
.field{ margin-bottom:20px; }
.field label{ display:block; font-size:13px; color:var(--text-2); margin-bottom:9px; font-weight:600; }
.field input,.field textarea,.field select{
  width:100%; padding:13px 16px; border-radius:12px; font-family:inherit; font-size:14.5px;
  background:rgba(6,11,22,.7); border:1px solid var(--line); color:var(--text);
  transition:border-color .3s,box-shadow .3s,background .3s; outline:none;
}
.field textarea{ resize:vertical; min-height:128px; }
.field input::placeholder,.field textarea::placeholder{ color:rgba(129,149,184,.6); }
.field input:focus,.field textarea:focus,.field select:focus{
  border-color:rgba(63,123,255,.65); background:rgba(8,14,28,.9);
  box-shadow:0 0 0 4px rgba(63,123,255,.12);
}
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.form-note{ font-size:12.5px; color:var(--muted); margin:16px 0 0; }
.form-ok{
  display:none; margin-top:18px; padding:14px 18px; border-radius:12px; font-size:14px;
  background:rgba(34,225,255,.1); border:1px solid rgba(34,225,255,.35); color:#a9f0ff;
}
.form-ok.show{ display:block; animation:fadeUp .5s var(--ease); }

.map-frame{
  margin-top:22px; height:230px; border-radius:var(--radius); overflow:hidden;
  border:1px solid var(--line); position:relative;
  background:linear-gradient(150deg,#0d1b38,#08111f);
}
.map-frame::before{
  content:""; position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(112,158,255,.16) 1px,transparent 1px),
    linear-gradient(90deg,rgba(112,158,255,.16) 1px,transparent 1px);
  background-size:30px 30px;
}
.map-pin{
  position:absolute; left:50%; top:50%; transform:translate(-50%,-50%);
  display:grid; place-items:center;
}
.map-pin i{
  width:14px; height:14px; border-radius:50%; background:var(--cyan);
  box-shadow:0 0 0 8px rgba(34,225,255,.16),0 0 24px rgba(34,225,255,.9);
  animation:pulse 2.6s infinite;
}
.map-label{
  position:absolute; left:50%; top:calc(50% + 26px); transform:translateX(-50%);
  font-size:12.5px; color:var(--text-2); white-space:nowrap;
  padding:5px 12px; border-radius:8px; background:rgba(4,10,22,.8);
  border:1px solid var(--line);
}

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer{
  border-top:1px solid var(--line); margin-top:40px;
  background:linear-gradient(180deg,rgba(6,10,20,.4),rgba(4,7,15,.95));
  padding:68px 0 30px;
}
.foot-top{ display:grid; grid-template-columns:1.5fr 1fr 1fr 1.3fr; gap:44px; }
.foot-brand p{ color:var(--muted); font-size:14px; margin:20px 0 22px; max-width:320px; }
.foot-social{ display:flex; gap:10px; }
.foot-social a{
  width:38px; height:38px; border-radius:11px; display:grid; place-items:center;
  background:rgba(112,158,255,.07); border:1px solid var(--line); color:var(--text-2);
  transition:all .3s var(--ease);
}
.foot-social a:hover{ color:#fff; border-color:var(--line-strong); transform:translateY(-3px); }
.foot-social svg{ width:17px; height:17px; }
.foot-col h4{ font-size:14px; margin-bottom:20px; letter-spacing:.06em; }
.foot-col ul{ list-style:none; margin:0; padding:0; display:grid; gap:11px; }
.foot-col a{ font-size:13.8px; color:var(--muted); transition:color .25s,padding-left .25s; }
.foot-col a:hover{ color:var(--cyan); padding-left:4px; }
.foot-contact li{ font-size:13.8px; color:var(--muted); display:flex; gap:10px; }
.foot-contact li b{ color:var(--text-2); font-weight:600; flex-shrink:0; }
.foot-bottom{
  margin-top:52px; padding-top:26px; border-top:1px solid var(--line);
  display:flex; justify-content:space-between; gap:18px; flex-wrap:wrap;
  font-size:12.8px; color:var(--muted);
}
.foot-bottom a:hover{ color:var(--cyan); }

/* ==========================================================================
   品牌资产页
   ========================================================================== */
.brand-stage{
  border-radius:var(--radius-lg); border:1px solid var(--line);
  display:grid; place-items:center; padding:60px 32px; position:relative; overflow:hidden;
}
.brand-stage.dark{ background:linear-gradient(160deg,#070d1a,#04070f); }
.brand-stage.light{ background:#f4f7ff; }
.brand-stage.grid::before{
  content:""; position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(112,158,255,.1) 1px,transparent 1px),
    linear-gradient(90deg,rgba(112,158,255,.1) 1px,transparent 1px);
  background-size:34px 34px;
}
.brand-stage > *{ position:relative; z-index:2; }
.swatch{ border-radius:var(--radius); overflow:hidden; border:1px solid var(--line); }
.swatch .sc{ height:112px; }
.swatch .si{ padding:15px 18px; background:rgba(10,17,32,.8); }
.swatch .si b{ display:block; font-size:14px; margin-bottom:3px; }
.swatch .si span{ font-family:var(--mono); font-size:11.5px; color:var(--muted); }

/* ==========================================================================
   通用动效
   ========================================================================== */
[data-reveal]{ opacity:0; transform:translateY(26px); }
[data-reveal].in{ opacity:1; transform:none;
  transition:opacity .8s var(--ease),transform .8s var(--ease); }
@keyframes fadeUp{ from{ opacity:0; transform:translateY(16px); } to{ opacity:1; transform:none; } }

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important;
    transition-duration:.001ms !important; }
  [data-reveal]{ opacity:1; transform:none; }
  html{ scroll-behavior:auto; }
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1080px){
  .hero-inner{ grid-template-columns:1fr; gap:52px; }
  .hero-visual{ max-width:520px; }
  .tab-panel{ grid-template-columns:1fr; }
  .g-4{ grid-template-columns:repeat(2,1fr); }
  .logo-wall{ grid-template-columns:repeat(3,1fr); }
  .foot-top{ grid-template-columns:1fr 1fr; gap:36px; }
  .contact-grid{ grid-template-columns:1fr; }
}

@media (max-width:880px){
  :root{ --nav-h:64px; }
  .section{ padding:76px 0; }
  .nav-links{
    position:fixed; inset:var(--nav-h) 0 auto 0; flex-direction:column; align-items:stretch;
    gap:2px; padding:16px 24px 26px; background:rgba(5,9,17,.97);
    -webkit-backdrop-filter:blur(20px); backdrop-filter:blur(20px);
    border-bottom:1px solid var(--line);
    transform:translateY(-12px); opacity:0; pointer-events:none;
    transition:transform .35s var(--ease),opacity .35s var(--ease);
  }
  .nav-links.is-open{ transform:none; opacity:1; pointer-events:auto; }
  .nav-links a{ padding:14px 16px; border-radius:12px; font-size:16px; }
  .nav-links a::after{ display:none; }
  .nav-toggle{ display:flex; }
  .nav-cta .btn{ display:none; }
  .g-3,.g-2{ grid-template-columns:1fr; }
  .stats{ grid-template-columns:1fr 1fr; }
  .logo-wall{ grid-template-columns:repeat(2,1fr); }
  .cta-band{ padding:48px 26px; }
  .feature-news{ grid-template-columns:1fr; }
  .feature-news .news-body{ padding:30px 24px; }
}

@media (max-width:560px){
  .container{ width:calc(100% - 36px); }
  .hero{ padding-top:calc(var(--nav-h) + 56px); }
  .hero-metrics{ gap:26px; }
  .field-row{ grid-template-columns:1fr; }
  .foot-top{ grid-template-columns:1fr; }
  .foot-bottom{ flex-direction:column; gap:10px; }
  .stats{ grid-template-columns:1fr; }
}