/* ==========================================================================
   辉达娱乐平台 · 全站统一样式
   主题：深空 AI 工作室（深色科技感 + 蓝紫渐变）
   纯 CSS 视觉元素，无外部依赖
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root{
  --bg:#060a17;
  --bg-2:#0a1124;
  --surface:rgba(15,24,48,.72);
  --surface-2:rgba(20,32,64,.55);
  --line:rgba(124,150,255,.16);
  --line-strong:rgba(124,150,255,.34);
  --text:#e9efff;
  --soft:#c6cfe8;
  --muted:#9aa8cc;
  --faint:#6b7797;
  --primary:#5f7bff;
  --violet:#9b5cff;
  --pink:#ff5ce1;
  --cyan:#3fe0ff;
  --grad:linear-gradient(115deg,#4f7cff,#9b5cff 52%,#ff5ce1);
  --grad-text:linear-gradient(105deg,#7ea2ff,#b07bff 55%,#ff7be6);
  --grad-soft:linear-gradient(120deg,rgba(79,124,255,.14),rgba(155,92,255,.14) 50%,rgba(255,92,225,.12));
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 18px 50px rgba(2,6,24,.55);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --mono:"Cascadia Code","JetBrains Mono",Consolas,"Courier New",monospace;
}

/* ---------- 2. 基础重置 ---------- */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none;transition:color .25s}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
em{font-style:normal}
::selection{background:rgba(155,92,255,.42);color:#fff}
:focus-visible{outline:2px solid #7d92ff;outline-offset:2px}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:linear-gradient(#4f7cff,#9b5cff);border-radius:8px;border:2px solid var(--bg)}

/* 全站氛围背景：渐变光晕 + 网格 */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;background:
  radial-gradient(900px 520px at 85% -10%,rgba(79,124,255,.16),transparent 60%),
  radial-gradient(760px 480px at -10% 30%,rgba(176,76,255,.12),transparent 60%),
  radial-gradient(680px 420px at 60% 110%,rgba(255,92,225,.08),transparent 60%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.45;
  background-image:
    linear-gradient(rgba(124,150,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(124,150,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse 90% 80% at 50% 0%,#000 30%,transparent 90%);
  mask-image:radial-gradient(ellipse 90% 80% at 50% 0%,#000 30%,transparent 90%);
}

/* ---------- 3. 通用布局 ---------- */
.container{width:min(1180px,92%);margin:0 auto}
.section{padding:88px 0}
.section-head{max-width:760px;margin:0 auto 52px;text-align:center}
.eyebrow{
  display:inline-block;margin-bottom:14px;
  font-family:var(--mono);font-size:13px;letter-spacing:.28em;text-transform:uppercase;
  background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.section-head h2{font-size:clamp(26px,3.4vw,38px);line-height:1.32;letter-spacing:.02em}
.section-head p{color:var(--muted);margin-top:14px;font-size:15.5px}
.grad{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}

/* ---------- 4. 按钮与链接 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 30px;border-radius:999px;border:1px solid transparent;
  font-weight:600;font-size:15px;cursor:pointer;
  background:var(--grad);color:#fff;
  box-shadow:0 10px 30px rgba(95,123,255,.35);
  transition:transform .25s,box-shadow .25s,filter .25s;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 16px 42px rgba(155,92,255,.45);filter:brightness(1.08)}
.btn-ghost{background:rgba(124,150,255,.06);border-color:var(--line-strong);box-shadow:none}
.btn-ghost:hover{border-color:#8ea6ff;box-shadow:0 10px 26px rgba(95,123,255,.25)}
.more-link{
  display:inline-block;margin-top:14px;color:#9db4ff;font-size:14.5px;
  border-bottom:1px dashed rgba(124,150,255,.5);padding-bottom:2px;
}
.more-link:hover{color:#fff;border-color:#fff}

/* ---------- 5. 页头与导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(6,10,23,.74);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:19px;letter-spacing:.03em;flex:none}
.logo{width:38px;height:38px;flex:none}
.brand-name em{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.main-nav ul{display:flex;gap:6px}
.main-nav a{
  display:block;padding:9px 16px;border-radius:999px;border:1px solid transparent;
  color:var(--muted);font-size:15px;white-space:nowrap;
}
.main-nav a:hover{color:var(--text);background:rgba(124,150,255,.1)}
.main-nav a.active{
  color:var(--text);
  background:linear-gradient(120deg,rgba(79,124,255,.22),rgba(255,92,225,.14));
  border-color:var(--line-strong);
}
.nav-toggle{
  display:none;width:44px;height:44px;flex:none;cursor:pointer;position:relative;
  border:1px solid var(--line-strong);border-radius:12px;background:rgba(124,150,255,.08);
}
.nav-toggle span{position:absolute;left:11px;right:11px;height:2px;border-radius:2px;background:var(--text);transition:.3s}
.nav-toggle span:nth-child(1){top:14px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:28px}
.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-open .nav-toggle span:nth-child(2){opacity:0}
.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 6. 首页 Banner 主视觉 ---------- */
.hero{position:relative;padding:126px 0 92px;text-align:center;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(124,150,255,.09) 1px,transparent 1px),
    linear-gradient(90deg,rgba(124,150,255,.09) 1px,transparent 1px);
  background-size:58px 58px;
  -webkit-mask-image:radial-gradient(ellipse 78% 66% at 50% 10%,#000 25%,transparent 78%);
  mask-image:radial-gradient(ellipse 78% 66% at 50% 10%,#000 25%,transparent 78%);
}
.orb{position:absolute;z-index:-1;border-radius:50%;filter:blur(80px);opacity:.45;pointer-events:none;animation:float 10s ease-in-out infinite}
.orb-a{width:440px;height:440px;right:-130px;top:-150px;background:radial-gradient(circle at 35% 35%,#4f7cff,transparent 62%)}
.orb-b{width:380px;height:380px;left:-130px;bottom:-170px;background:radial-gradient(circle at 55% 45%,#a24dff,transparent 62%);animation-delay:-5s}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(18px,-26px) scale(1.06)}}
.chip{
  display:inline-flex;align-items:center;gap:10px;padding:8px 18px;border-radius:999px;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.2em;color:#aebcf5;
  border:1px solid var(--line-strong);background:rgba(10,17,38,.7);
}
.chip::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--grad);box-shadow:0 0 12px rgba(255,92,225,.9)}
.hero h1{font-size:clamp(34px,5.6vw,62px);line-height:1.22;font-weight:800;letter-spacing:.01em;margin:24px 0 0}
.hero-sub{max-width:700px;margin:20px auto 0;color:var(--muted);font-size:clamp(15px,1.6vw,17.5px)}
.hero-cta{margin-top:36px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
/* 页面载入交错浮现 */
@keyframes rise{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:none}}
.rise{animation:rise .8s cubic-bezier(.2,.7,.2,1) both}
.d1{animation-delay:.08s}
.d2{animation-delay:.16s}
.d3{animation-delay:.24s}
.d4{animation-delay:.34s}

/* 数据统计 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:64px}
.stat{
  border:1px solid var(--line);border-radius:var(--radius);padding:26px 16px;
  background:var(--surface);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.stat b{
  display:block;font-family:var(--mono);font-size:clamp(25px,3vw,36px);font-weight:700;
  background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat span{color:var(--muted);font-size:13.5px}

/* ---------- 7. 卡片体系 ---------- */
.card{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  padding:30px 26px;
  transition:transform .3s,border-color .3s,box-shadow .3s;
}
.card::before{
  content:"";position:absolute;inset:0;opacity:0;transition:opacity .3s;
  background:linear-gradient(140deg,rgba(79,124,255,.13),transparent 45%,rgba(255,92,225,.09));
}
.card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.card:hover::before{opacity:1}
.card h3{font-size:19px;margin:18px 0 10px;position:relative}
.card p{color:var(--muted);font-size:14.5px;position:relative}
.icon-badge{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;color:#9db4ff;
  background:linear-gradient(135deg,rgba(79,124,255,.25),rgba(255,92,225,.18));
  border:1px solid var(--line-strong);position:relative;
}
.icon-badge svg{width:25px;height:25px}
.adv-num{
  font-family:var(--mono);font-size:13px;letter-spacing:.24em;
  background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent;
}

/* 公司简介 */
.brief-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:stretch}
.brief-text{padding:6px 4px}
.brief-text p{color:var(--soft);margin-bottom:14px;font-size:15.5px}
.brief-points{
  border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;
  background:var(--surface);backdrop-filter:blur(12px);
}
.brief-points li{
  position:relative;padding:11px 0 11px 26px;border-bottom:1px dashed var(--line);
  color:var(--muted);font-size:14.5px;
}
.brief-points li:last-child{border-bottom:none}
.brief-points li::before{content:"◆";position:absolute;left:2px;top:13px;font-size:10px;color:#8ea6ff}
.brief-points b{color:var(--text)}

/* 制作流程 */
.flow{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;counter-reset:step}
.flow li{
  counter-increment:step;position:relative;
  border:1px solid var(--line);border-radius:var(--radius-sm);padding:24px 18px;
  background:var(--surface-2);backdrop-filter:blur(10px);
  transition:transform .3s,border-color .3s;
}
.flow li:hover{transform:translateY(-5px);border-color:var(--line-strong)}
.flow li::before{
  content:"0" counter(step);font-family:var(--mono);font-size:14px;font-weight:700;
  background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.flow li::after{
  content:"";position:absolute;right:-13px;top:44%;width:11px;height:11px;
  border-top:2px solid rgba(124,150,255,.55);border-right:2px solid rgba(124,150,255,.55);
  transform:rotate(45deg);
}
.flow li:last-child::after{display:none}
.flow h3{font-size:16px;margin:10px 0 7px}
.flow p{font-size:13px;color:var(--muted);line-height:1.7}

/* 案例卡片 */
.case-card{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:var(--surface);backdrop-filter:blur(12px);
  transition:transform .3s,border-color .3s,box-shadow .3s;
}
.case-card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.poster{
  aspect-ratio:16/10;position:relative;display:flex;flex-direction:column;justify-content:flex-end;
  align-items:flex-start;gap:10px;padding:20px;background:var(--p1,var(--grad));overflow:hidden;
}
.poster::before{
  content:"";position:absolute;inset:0;opacity:.4;mix-blend-mode:overlay;
  background-image:
    linear-gradient(rgba(255,255,255,.16) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:34px 34px;
}
.poster::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(5,8,20,.75),transparent 58%)}
.poster .tag{position:relative;z-index:2}
.poster b{position:relative;z-index:2;font-size:21px;letter-spacing:.14em;font-weight:700}
.case-body{padding:20px 22px 24px}
.case-body h3{font-size:17px;margin-bottom:8px}
.case-body p{font-size:14px;color:var(--muted)}
.tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.08em;color:#fff;
  background:rgba(6,10,23,.55);border:1px solid rgba(255,255,255,.28);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}
.tag-solid{background:var(--grad);border-color:transparent}

/* 案例筛选 */
.filter-bar{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:42px}
.filter-btn{
  padding:9px 22px;border-radius:999px;cursor:pointer;font-size:14px;
  border:1px solid var(--line-strong);background:transparent;color:var(--muted);transition:.25s;
}
.filter-btn:hover{color:#fff;border-color:#8ea6ff}
.filter-btn.active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 8px 22px rgba(95,123,255,.35)}

/* ---------- 8. 子页头与面包屑 ---------- */
.page-hero{position:relative;padding:74px 0 54px;text-align:center;overflow:hidden}
.page-hero .orb{opacity:.3;filter:blur(90px)}
.crumbs{
  display:flex;gap:9px;justify-content:center;align-items:center;flex-wrap:wrap;
  margin-bottom:22px;font-size:13.5px;color:var(--faint);
}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:#fff}
.crumbs .sep{color:var(--faint)}
.crumbs [aria-current]{color:#aebcf5}
.page-hero h1{font-size:clamp(28px,4vw,44px);line-height:1.3}
.page-hero .lead{color:var(--muted);max-width:680px;margin:16px auto 0;font-size:15.5px}

/* ---------- 9. 关于我们 ---------- */
.about-visual{
  position:relative;aspect-ratio:16/9;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);display:grid;place-items:center;
  background:
    radial-gradient(520px 300px at 20% 15%,rgba(79,124,255,.35),transparent 60%),
    radial-gradient(460px 300px at 85% 85%,rgba(255,92,225,.3),transparent 60%),
    linear-gradient(150deg,#0d1730,#141a3d 55%,#1c1440);
}
.about-visual::before{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.1) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.1) 1px,transparent 1px);
  background-size:36px 36px;
  -webkit-mask-image:radial-gradient(ellipse 70% 70% at 50% 50%,#000 30%,transparent 85%);
  mask-image:radial-gradient(ellipse 70% 70% at 50% 50%,#000 30%,transparent 85%);
}
.about-visual-inner{position:relative;text-align:center;padding:20px}
.about-visual-inner .wm{
  font-family:var(--mono);font-size:12px;letter-spacing:.4em;
  background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.about-visual-inner strong{display:block;font-size:clamp(26px,3.4vw,40px);letter-spacing:.1em;margin:8px 0 6px}
.about-visual-inner span{color:var(--muted);font-size:13.5px;font-family:var(--mono);letter-spacing:.12em}
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:center}
.about-grid p{color:var(--soft);font-size:15.5px;margin-bottom:14px}
.v-badge{
  font-family:var(--mono);font-size:12px;letter-spacing:.3em;color:#8ea6ff;text-transform:uppercase;
}
/* 发展历程时间轴 */
.timeline{position:relative;max-width:780px;margin:0 auto;padding-left:34px}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(#4f7cff,#9b5cff,#ff5ce1);opacity:.5;
}
.timeline li{position:relative;padding:0 0 36px 26px}
.timeline li:last-child{padding-bottom:6px}
.timeline li::before{
  content:"";position:absolute;left:-31px;top:10px;width:12px;height:12px;border-radius:50%;
  background:var(--bg);border:3px solid #6f8cff;box-shadow:0 0 0 5px rgba(95,123,255,.15);
}
.timeline time{font-family:var(--mono);font-size:14px;color:#8ea6ff;letter-spacing:.08em}
.timeline h3{font-size:18px;margin:6px 0 6px}
.timeline p{color:var(--muted);font-size:14.5px}
/* 团队 */
.team-card{text-align:center}
.avatar{
  width:86px;height:86px;border-radius:50%;margin:0 auto 16px;position:relative;
  display:grid;place-items:center;font-size:27px;font-weight:700;color:#fff;
  background:var(--p1,var(--grad));box-shadow:0 10px 26px rgba(0,0,0,.4);
}
.avatar::after{content:"";position:absolute;inset:-6px;border-radius:50%;border:1px dashed var(--line-strong)}
.role{font-family:var(--mono);font-size:13px;letter-spacing:.1em;color:#8ea6ff;margin-bottom:8px}
.team-card h3{margin-top:0}

/* ---------- 10. 业务服务 ---------- */
.service-list{border-top:1px dashed var(--line)}
.service-block{
  display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center;
  padding:50px 0;border-bottom:1px dashed var(--line);
}
.service-num{font-family:var(--mono);font-size:14px;letter-spacing:.26em;color:#8ea6ff}
.service-block h2{font-size:clamp(22px,2.6vw,30px);margin:10px 0 14px}
.service-block .desc{color:var(--muted);font-size:15px;margin-bottom:18px}
.service-visual{
  position:relative;aspect-ratio:4/3;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);background:var(--p1,var(--grad-soft));
  display:grid;place-items:center;
}
.service-visual::before{
  content:"";position:absolute;inset:0;opacity:.4;mix-blend-mode:overlay;
  background-image:
    linear-gradient(rgba(255,255,255,.15) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.15) 1px,transparent 1px);
  background-size:34px 34px;
}
.service-visual svg{width:38%;height:auto;opacity:.85;position:relative}
.service-visual .wm{
  position:absolute;right:14px;bottom:10px;font-family:var(--mono);font-size:11px;
  letter-spacing:.3em;color:rgba(255,255,255,.65);
}
.check li{
  position:relative;padding:0 0 10px 28px;margin:0;color:var(--soft);font-size:14.5px;
}
.check li::before{
  content:"";position:absolute;left:2px;top:8px;width:14px;height:8px;
  border-left:2.5px solid #8ea6ff;border-bottom:2.5px solid #8ea6ff;transform:rotate(-45deg);
}
.service-block:nth-child(even) .service-visual{order:-1}

/* ---------- 11. 新闻列表 ---------- */
.news-list{display:grid;gap:18px;max-width:880px;margin:0 auto}
.news-item{
  display:grid;grid-template-columns:auto 1fr;gap:24px;
  border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;
  background:var(--surface);backdrop-filter:blur(12px);
  transition:transform .3s,border-color .3s,box-shadow .3s;
}
.news-item:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.news-date{
  font-family:var(--mono);text-align:center;color:#8ea6ff;
  border-right:1px solid var(--line);padding-right:24px;flex:none;
}
.news-date b{display:block;font-size:31px;font-weight:700;color:var(--text);line-height:1.2}
.news-date span{font-size:12.5px;color:var(--faint)}
.news-item h3{font-size:18.5px;line-height:1.5;margin-bottom:8px}
.news-item h3 a:hover{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.news-item .excerpt{color:var(--muted);font-size:14px}
.news-meta{display:flex;gap:16px;flex-wrap:wrap;margin-top:12px;font-size:12.5px;color:var(--faint)}
.news-meta em{color:#aebcf5}

/* ---------- 12. 文章详情 ---------- */
.article-wrap{max-width:840px;margin:0 auto}
.article-meta{
  display:flex;gap:20px;flex-wrap:wrap;margin-bottom:20px;
  font-family:var(--mono);font-size:13px;color:var(--faint);letter-spacing:.04em;
}
.article-meta em{color:#8ea6ff}
.article h1{font-size:clamp(26px,3.6vw,38px);line-height:1.45;margin-bottom:20px}
.article-lead{
  border-left:3px solid #7f6bff;padding:4px 0 4px 18px;margin-bottom:36px;
  color:var(--muted);font-size:16.5px;
}
.article-body h2{
  font-size:22px;margin:40px 0 16px;padding-left:14px;line-height:1.5;
  border-left:4px solid;border-image:linear-gradient(#4f7cff,#ff5ce1) 1;
}
.article-body p{color:var(--soft);margin-bottom:16px;font-size:15.5px;line-height:1.95}
.article-body strong{color:#fff}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:var(--grad-soft);
  color:#cdd6f2;font-size:14.5px;
}
.article-nav{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:46px;padding-top:26px;border-top:1px dashed var(--line);
}
.article-nav a{color:#9db4ff;font-size:14.5px}
.article-nav a:hover{color:#fff}
/* 相关推荐侧栏 */
.aside-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:26px}
.aside-box{
  border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;
  background:var(--surface);backdrop-filter:blur(12px);
}
.aside-box h2{font-size:17px;margin-bottom:14px}
.link-list li{padding:10px 0;border-bottom:1px dashed var(--line)}
.link-list li:last-child{border-bottom:none}
.link-list a{color:var(--muted);font-size:14.5px;line-height:1.6;display:block}
.link-list a:hover{color:#fff}

/* ---------- 13. 联系我们 ---------- */
.contact-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:26px;align-items:start}
.contact-method{
  display:flex;gap:16px;padding:20px 22px;margin-bottom:16px;
  border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);
}
.contact-method .icon-badge{flex:none}
.contact-method h3{font-size:16px;margin-bottom:4px}
.contact-method p{color:var(--muted);font-size:14.5px}
.form-card{
  border:1px solid var(--line);border-radius:var(--radius);padding:36px 34px;
  background:var(--surface);backdrop-filter:blur(12px);
}
.form-card>h2{font-size:22px;margin-bottom:6px}
.form-card>.form-note{color:var(--muted);font-size:14px;margin-bottom:24px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;color:#c9d3f0}
.field label .req{color:#ff7be6;margin-left:4px}
.field input,.field select,.field textarea{
  width:100%;background:rgba(8,13,30,.7);border:1px solid var(--line-strong);
  border-radius:10px;padding:12px 14px;font-size:14.5px;outline:none;
  transition:border-color .25s,box-shadow .25s;color:var(--text);
}
.field select{
  appearance:none;-webkit-appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,#8ea6ff 50%),linear-gradient(135deg,#8ea6ff 50%,transparent 50%);
  background-position:calc(100% - 20px) 50%,calc(100% - 14px) 50%;
  background-size:6px 6px;background-repeat:no-repeat;
}
.field select option{background:#0c1430;color:var(--text)}
.field textarea{min-height:132px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:#7d92ff;box-shadow:0 0 0 4px rgba(95,123,255,.14)}
.field .err{display:none;color:#ff8ba3;font-size:12.5px}
.field.is-error input,.field.is-error select,.field.is-error textarea{border-color:#ff6b8b;box-shadow:0 0 0 4px rgba(255,107,139,.12)}
.field.is-error .err{display:block}
.form-tip{margin-top:16px;font-size:13px;color:var(--faint)}
.form-tip b{color:var(--muted)}
.form-actions{margin-top:22px}
.form-success{
  display:none;margin-top:18px;padding:16px 18px;border-radius:12px;
  border:1px solid rgba(63,224,255,.35);color:#bff3ff;font-size:14.5px;
  background:linear-gradient(120deg,rgba(63,224,255,.12),rgba(155,92,255,.14));
}
.form-success.show{display:block;animation:rise .5s both}
/* 地图占位 */
.map-panel{
  position:relative;margin-top:26px;height:220px;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);display:grid;place-items:center;
  background:
    radial-gradient(600px 300px at 30% 20%,rgba(79,124,255,.25),transparent 60%),
    radial-gradient(500px 280px at 80% 80%,rgba(255,92,225,.18),transparent 60%),
    linear-gradient(rgba(124,150,255,.09) 1px,transparent 1px),
    linear-gradient(90deg,rgba(124,150,255,.09) 1px,transparent 1px);
  background-size:auto,auto,38px 38px,38px 38px;
}
.map-pin{
  width:46px;height:46px;border-radius:50% 50% 50% 0;position:relative;
  transform:rotate(-45deg);background:var(--grad);
  box-shadow:0 12px 30px rgba(155,92,255,.5);animation:bob 2.4s ease-in-out infinite;
}
.map-pin::after{content:"";position:absolute;inset:14px;border-radius:50%;background:rgba(255,255,255,.85)}
@keyframes bob{0%,100%{transform:rotate(-45deg) translateY(0)}50%{transform:rotate(-45deg) translateY(-9px)}}
.map-panel p{position:absolute;left:0;right:0;bottom:16px;text-align:center;color:var(--muted);font-size:13px}

/* ---------- 14. CTA 横幅 ---------- */
.cta-band{
  position:relative;overflow:hidden;text-align:center;
  border:1px solid var(--line-strong);border-radius:22px;padding:56px 40px;
  background:linear-gradient(120deg,rgba(79,124,255,.2),rgba(155,92,255,.18) 50%,rgba(255,92,225,.16));
}
.cta-band h2{font-size:clamp(24px,3vw,34px);margin-bottom:12px}
.cta-band p{color:#c3cdec;margin-bottom:28px;font-size:15.5px}

/* ---------- 15. 页脚 ---------- */
.site-footer{
  margin-top:96px;padding-top:64px;position:relative;
  border-top:1px solid var(--line);
  background:linear-gradient(rgba(9,14,30,.6),rgba(6,10,23,.92));
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.1fr 1.25fr;gap:36px;padding-bottom:46px}
.footer-about p{color:var(--muted);font-size:14px;margin-top:16px;max-width:300px}
.footer-title{font-size:16px;margin-bottom:18px;font-weight:600}
.footer-nav a{display:block;color:var(--muted);font-size:14px;padding:5px 0}
.footer-nav a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  color:var(--faint);font-size:13px;
}

/* ---------- 16. 返回顶部 ---------- */
.back-top{
  position:fixed;right:26px;bottom:30px;z-index:90;cursor:pointer;
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;color:#9db4ff;
  border:1px solid var(--line-strong);background:rgba(12,19,40,.85);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  opacity:0;visibility:hidden;transform:translateY(14px);transition:.35s;
}
.back-top.show{opacity:1;visibility:visible;transform:none}
.back-top:hover{background:var(--grad);border-color:transparent;color:#fff}

/* ---------- 17. 滚动显现 ---------- */
.js .reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.in{opacity:1;transform:none}
.js .grid-3 .reveal:nth-child(2),.js .grid-4 .reveal:nth-child(2){transition-delay:.1s}
.js .grid-3 .reveal:nth-child(3),.js .grid-4 .reveal:nth-child(3){transition-delay:.2s}
.js .grid-4 .reveal:nth-child(4){transition-delay:.3s}

/* ---------- 18. 404 ---------- */
.error-page{min-height:64vh;display:grid;place-items:center;text-align:center;padding:90px 0 40px}
.error-code{
  font-family:var(--mono);font-size:clamp(90px,18vw,180px);font-weight:800;line-height:1;
  background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent;
  text-shadow:0 0 60px rgba(155,92,255,.35);
}
.error-page h1{font-size:clamp(22px,3vw,30px);margin:18px 0 10px}
.error-page p{color:var(--muted);margin-bottom:30px}

/* ---------- 19. 响应式 ---------- */
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(3,1fr)}
  .flow li::after{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
  .service-block{grid-template-columns:1fr;gap:28px;padding:42px 0}
  .service-block:nth-child(even) .service-visual{order:0}
  .about-grid{grid-template-columns:1fr;gap:24px}
  .brief-grid{grid-template-columns:1fr}
}
@media (max-width:880px){
  .nav-toggle{display:block}
  .main-nav{
    position:fixed;left:0;right:0;top:72px;z-index:99;
    background:rgba(7,11,26,.97);border-bottom:1px solid var(--line);
    padding:16px 5% 24px;transform:translateY(-135%);transition:transform .35s ease;
  }
  .nav-open .main-nav{transform:translateY(0)}
  .main-nav ul{flex-direction:column;gap:4px}
  .main-nav a{padding:13px 12px;border-radius:10px;font-size:16px}
}
@media (max-width:680px){
  .section{padding:64px 0}
  .hero{padding:104px 0 68px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .form-card{padding:28px 22px}
  .news-item{grid-template-columns:1fr;gap:12px;padding:22px}
  .news-date{
    text-align:left;border-right:none;padding:0 0 10px;
    border-bottom:1px dashed var(--line);display:flex;gap:8px;align-items:baseline;
  }
  .news-date b{font-size:24px}
  .aside-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:44px 22px}
  .article-nav{flex-direction:column}
  .back-top{right:16px;bottom:20px}
}

/* ---------- 20. AI 配图媒体样式 ---------- */
/* 首页 Banner 背景：img 承载利于图片收录，遮罩保证文字可读性，绝对定位不产生 CLS */
.hero-bg{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:center;z-index:-2;
}
.hero-veil{
  position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(180deg,rgba(6,10,23,.86),rgba(6,10,23,.48) 42%,rgba(6,10,23,.92));
}
/* 案例海报图片：保留原 .poster 渐变作为加载兜底与视觉统一 */
.card-media{position:relative}
.card-media .poster-img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.case-card:hover .poster-img{transform:scale(1.05)}
.poster::before{z-index:1}
/* 新闻列表缩略图 */
.news-item.has-thumb{grid-template-columns:auto 158px 1fr;align-items:center}
.news-thumb{
  display:block;width:158px;aspect-ratio:16/10;border-radius:var(--radius-sm);
  overflow:hidden;border:1px solid var(--line);box-shadow:0 8px 22px rgba(2,6,24,.45);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.news-thumb:hover img{transform:scale(1.06)}
/* 文章主图 */
.article-hero{
  margin:0 0 28px;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.article-hero img{width:100%;height:auto;aspect-ratio:1792/1024;object-fit:cover}
/* 关于我们：团队实景图打底，保留原网格与文字水印层 */
.about-photo{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:center;z-index:0;
}
.about-visual::before{z-index:1}
.about-visual::after{
  content:"";position:absolute;inset:0;z-index:2;
  background:linear-gradient(160deg,rgba(6,10,23,.72),rgba(10,16,38,.4) 45%,rgba(6,10,23,.84));
}
.about-visual-inner{z-index:3}

@media (max-width:680px){
  .news-item.has-thumb{grid-template-columns:1fr}
  .news-thumb{width:100%}
}