/* ==========================================================================
   Obsidian Media — 短视频新媒体公司主题
   设计系统 / 组件 / 页面样式
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root{
  --bg:#05060b;
  --bg-elev:#0a0c14;
  --bg-soft:#0e111b;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.028);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --text:#eef1f8;
  --text-2:#b7bed0;
  --muted:#8a92a6;
  /* 品牌色：只需改这 3 组 RGB 通道 + 对应 hex，全站自动跟随 */
  --brand:#ff3b57;      --brand-rgb:255,59,87;
  --brand-2:#ffb03a;    --brand-2-rgb:255,176,58;
  --accent:#ff3d9a;     --accent-rgb:255,61,154;
  --brand-mid:#ff6a3d;            /* 渐变中段 */
  --brand-tint:#ffd2cf;           /* 主色淡色调（用于小字/图标） */
  --brand-tint-2:#ffe2b8;         /* 辅色淡色调 */
  --grad:linear-gradient(115deg,var(--brand) 0%,var(--brand-mid) 45%,var(--brand-2) 100%);
  --grad-soft:linear-gradient(115deg,rgba(var(--brand-rgb),.18),rgba(var(--brand-2-rgb),.12));
  --radius:20px;
  --radius-sm:12px;
  --radius-pill:999px;
  --font:"Inter","HarmonyOS Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:ui-monospace,"SFMono-Regular","JetBrains Mono",Consolas,"Liberation Mono",monospace;
  --shadow:0 30px 80px -40px rgba(0,0,0,.9);
  --glow:0 20px 60px -24px rgba(var(--brand-rgb),.55);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--font);
  font-size:16px;line-height:1.75;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:#fff}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1em}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.2;letter-spacing:-.02em;color:#fff}
figure{margin:0}
input,textarea,select{font-family:inherit;font-size:1rem}
::selection{background:rgba(var(--brand-rgb),.45);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.container-wide{max-width:1440px}
.screen-reader-text{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);white-space:nowrap}
.skip-link{position:absolute;left:-9999px;top:0;z-index:999;background:#fff;color:#000;padding:12px 20px;border-radius:8px}
.skip-link:focus{left:16px;top:16px}

/* ---------- 3. Typography ---------- */
.display{font-size:clamp(2.4rem,5.6vw,4.4rem);font-weight:800;line-height:1.08;letter-spacing:-.03em}
.h2{font-size:clamp(1.9rem,3.6vw,3rem);font-weight:800;line-height:1.16;letter-spacing:-.025em}
.h3{font-size:clamp(1.2rem,1.7vw,1.5rem);font-weight:700}
.lead{font-size:clamp(1rem,1.2vw,1.125rem);color:var(--text-2);line-height:1.85}
.muted{color:var(--muted)}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);
  font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--text-2);
  padding:7px 14px;border:1px solid var(--line);border-radius:var(--radius-pill);
  background:rgba(255,255,255,.03);margin-bottom:22px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 12px var(--brand-2)}
.mono{font-family:var(--mono);font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

/* ---------- 4. Layout ---------- */
.section{padding:clamp(72px,9vw,128px) 0;position:relative}
.section-tight{padding:clamp(48px,6vw,80px) 0}
.section-head{max-width:760px;margin-bottom:clamp(40px,5vw,64px)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head .lead{margin-top:18px;margin-bottom:0}
.section-head .h2{margin-bottom:0}

.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,72px);align-items:center}

/* ---------- 5. Buttons / chips ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 30px;border-radius:var(--radius-pill);font-size:.95rem;font-weight:600;
  letter-spacing:.01em;transition:all .3s var(--ease);white-space:nowrap;
  border:1px solid transparent;position:relative;overflow:hidden;
}
.btn svg{width:16px;height:16px;flex:none;transition:transform .3s var(--ease)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 26px 70px -22px rgba(var(--brand-rgb),.85);color:#fff}
.btn-primary:hover svg{transform:translateX(4px)}
.btn-ghost{border-color:var(--line-strong);color:#fff;background:rgba(255,255,255,.03);backdrop-filter:blur(8px)}
.btn-ghost:hover{border-color:rgba(255,255,255,.4);background:rgba(255,255,255,.08);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:11px 22px;font-size:.85rem}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:.9rem;font-weight:600;color:var(--text-2)}
.link-arrow svg{width:15px;height:15px;transition:transform .3s var(--ease)}
.link-arrow:hover{color:#fff}
.link-arrow:hover svg{transform:translateX(4px)}

.chip{display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:var(--radius-pill);border:1px solid var(--line);background:rgba(255,255,255,.04);font-size:.76rem;color:var(--text-2)}
.chip-brand{border-color:rgba(var(--brand-rgb),.4);background:rgba(var(--brand-rgb),.12);color:#cfc6ff}
.tag{font-family:var(--mono);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--brand-2)}

/* ---------- 6. Header ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:100;padding:18px 0;
  transition:padding .35s var(--ease),background .35s var(--ease),border-color .35s;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  padding:12px 0;background:rgba(5,6,11,.72);backdrop-filter:blur(18px) saturate(160%);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:32px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.02em;font-size:1.05rem}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--grad);
  display:grid;place-items:center;color:#fff;font-family:var(--mono);font-size:.9rem;font-weight:700;
  box-shadow:0 10px 30px -12px rgba(var(--brand-rgb),.9);flex:none;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text small{font-family:var(--mono);font-size:.58rem;letter-spacing:.24em;color:var(--muted);font-weight:500;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:4px}
.nav a{
  position:relative;padding:10px 15px;border-radius:10px;font-size:.9rem;color:var(--text-2);font-weight:500;
}
.nav a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav a.is-active{color:#fff}
.nav a.is-active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;border-radius:2px;background:var(--grad);
}
.nav .sub-menu{
  position:absolute;top:calc(100% + 8px);left:0;min-width:190px;padding:8px;
  background:#0d1018;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:all .25s var(--ease);
}
.nav li{position:relative}
.nav li:hover>.sub-menu{opacity:1;visibility:visible;transform:none}
.nav .sub-menu a{display:block;padding:9px 12px;font-size:.86rem}
.header-actions{display:flex;align-items:center;gap:12px}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;align-items:center;justify-content:center}
.menu-toggle span{display:block;width:18px;height:1.5px;background:#fff;position:relative;transition:.3s}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:1.5px;background:#fff;transition:.3s}
.menu-toggle span::before{top:-6px}.menu-toggle span::after{top:6px}
.menu-toggle.is-open span{background:transparent}
.menu-toggle.is-open span::before{top:0;transform:rotate(45deg)}
.menu-toggle.is-open span::after{top:0;transform:rotate(-45deg)}

.mobile-nav{
  position:fixed;inset:0;z-index:99;background:rgba(5,6,11,.97);backdrop-filter:blur(20px);
  padding:100px 28px 40px;display:flex;flex-direction:column;gap:6px;
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s;
}
.mobile-nav.is-open{opacity:1;visibility:visible}
.mobile-nav a{display:block;padding:16px 4px;font-size:1.35rem;font-weight:700;border-bottom:1px solid var(--line)}
.mobile-nav .btn{margin-top:24px}

/* ---------- 7. Hero ---------- */
.hero{position:relative;padding:160px 0 90px;overflow:hidden;isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-2;overflow:hidden}
.hero-grid{
  position:absolute;inset:-20% -10% 0;
  background-image:linear-gradient(to right,rgba(255,255,255,.055) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:88px 88px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 20%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 20%,#000 20%,transparent 78%);
}
.orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.55;animation:float 16s ease-in-out infinite}
.orb-1{width:520px;height:520px;background:radial-gradient(circle,#6b46ff 0%,transparent 70%);top:-180px;left:-120px}
.orb-2{width:460px;height:460px;background:radial-gradient(circle,#00c2ff 0%,transparent 70%);top:60px;right:-140px;animation-delay:-6s;opacity:.4}
.orb-3{width:380px;height:380px;background:radial-gradient(circle,#ff3d8b 0%,transparent 70%);bottom:-220px;left:38%;opacity:.22;animation-delay:-11s}
@keyframes float{0%,100%{transform:translate3d(0,0,0) scale(1)}50%{transform:translate3d(30px,-30px,0) scale(1.08)}}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(ellipse at 50% 0%,transparent 40%,var(--bg) 82%);
}
.hero-inner{display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(32px,5vw,64px);align-items:center}
.hero-title{font-size:clamp(2.5rem,5vw,4.2rem);font-weight:800;line-height:1.06;letter-spacing:-.035em;margin-bottom:24px}
.hero-title em{font-style:normal;display:inline-block;position:relative}
.hero-sub{font-size:clamp(.98rem,1.15vw,1.1rem);color:var(--text-2);max-width:520px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:34px 0 30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px;padding-top:26px;border-top:1px solid var(--line)}
.hero-meta div{display:flex;flex-direction:column;gap:2px}
.hero-meta strong{font-size:1.45rem;font-weight:800;letter-spacing:-.02em}
.hero-meta span{font-size:.76rem;color:var(--muted);letter-spacing:.06em}

/* hero visual */
.hero-visual{position:relative}
.video-card{
  position:relative;border-radius:24px;overflow:hidden;aspect-ratio:4/4.6;
  background:linear-gradient(160deg,#161a2b,#0a0c14 60%);
  border:1px solid var(--line);box-shadow:0 50px 120px -50px rgba(var(--brand-rgb),.8);
}
.video-card .vc-bg{
  position:absolute;inset:0;
  background:
    radial-gradient(circle at 30% 20%,rgba(var(--brand-rgb),.55),transparent 55%),
    radial-gradient(circle at 80% 70%,rgba(var(--brand-2-rgb),.42),transparent 55%),
    linear-gradient(160deg,#12162a,#080a12);
}
.video-card .vc-grid{
  position:absolute;inset:0;opacity:.25;
  background-image:linear-gradient(rgba(255,255,255,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:44px 44px;mask-image:radial-gradient(circle at 50% 50%,#000,transparent 75%);
  -webkit-mask-image:radial-gradient(circle at 50% 50%,#000,transparent 75%);
}
.vc-top{position:absolute;top:18px;left:18px;right:18px;display:flex;justify-content:space-between;align-items:center;z-index:2}
.vc-live{display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border-radius:var(--radius-pill);background:rgba(255,255,255,.12);backdrop-filter:blur(10px);font-family:var(--mono);font-size:.62rem;letter-spacing:.16em}
.vc-live i{width:6px;height:6px;border-radius:50%;background:#ff4d6d;animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(255,77,109,.6)}50%{opacity:.6;box-shadow:0 0 0 6px rgba(255,77,109,0)}}
.play-btn{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:88px;height:88px;border-radius:50%;background:rgba(255,255,255,.12);
  backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.32);
  display:grid;place-items:center;z-index:2;transition:.3s var(--ease);
}
.play-btn::after{content:"";position:absolute;inset:-14px;border-radius:50%;border:1px solid rgba(255,255,255,.18);animation:ring 3s ease-out infinite}
@keyframes ring{0%{transform:scale(.9);opacity:.8}100%{transform:scale(1.25);opacity:0}}
.play-btn svg{width:22px;height:22px;margin-left:4px;fill:#fff}
.vc-bottom{position:absolute;bottom:18px;left:18px;right:18px;z-index:2}
.vc-line{height:4px;border-radius:4px;background:rgba(255,255,255,.22);overflow:hidden;margin-bottom:12px}
.vc-line i{display:block;height:100%;width:62%;background:var(--grad);border-radius:4px}
.vc-caption{display:flex;justify-content:space-between;font-family:var(--mono);font-size:.62rem;letter-spacing:.12em;color:rgba(255,255,255,.72)}
.float-chip{
  position:absolute;padding:14px 18px;border-radius:14px;background:rgba(13,16,24,.82);
  border:1px solid var(--line-strong);backdrop-filter:blur(16px);box-shadow:var(--shadow);z-index:3;
}
.float-chip .fc-num{font-size:1.24rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.float-chip .fc-label{font-size:.68rem;color:var(--muted);letter-spacing:.04em}
.float-chip.chip-a{top:14%;right:-22px;animation:float 9s ease-in-out infinite}
.float-chip.chip-b{bottom:16%;left:-30px;animation:float 11s ease-in-out infinite reverse}

/* ---------- 8. Stats ---------- */
.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.022),transparent)}
.stats-inner{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:38px 24px;border-right:1px solid var(--line);text-align:center}
.stat:last-child{border-right:0}
.stat-num{font-size:clamp(1.9rem,3vw,2.7rem);font-weight:800;letter-spacing:-.03em;line-height:1.1;font-variant-numeric:tabular-nums}
.stat-num small{font-size:.5em;font-weight:700;margin-left:2px}
.stat-label{font-size:.78rem;color:var(--muted);letter-spacing:.08em;margin-top:8px}

/* ---------- 9. Cards ---------- */
.card{
  position:relative;background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:var(--radius);padding:30px;
  transition:transform .4s var(--ease),border-color .4s,box-shadow .4s;
  overflow:hidden;
}
.card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:linear-gradient(140deg,rgba(var(--brand-rgb),.65),transparent 40%,transparent 65%,rgba(var(--brand-2-rgb),.5));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .4s;
  pointer-events:none;
}
.card:hover{transform:translateY(-5px);box-shadow:0 30px 70px -40px rgba(var(--brand-rgb),.7)}
.card:hover::before{opacity:1}
.card-num{font-family:var(--mono);font-size:.7rem;letter-spacing:.2em;color:var(--brand-2)}
.service-icon{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;margin-bottom:22px;
  background:var(--grad-soft);border:1px solid rgba(var(--brand-rgb),.3);color:#c9bfff;
}
.service-icon svg{width:24px;height:24px}
.card h3{margin-bottom:10px}
.card p{font-size:.92rem;color:var(--text-2);margin-bottom:0}
.card-list{margin:20px 0 0;padding-top:18px;border-top:1px solid var(--line);display:grid;gap:8px}
.card-list li{position:relative;padding-left:18px;font-size:.86rem;color:var(--text-2)}
.card-list li::before{content:"";position:absolute;left:0;top:.62em;width:5px;height:5px;border-radius:50%;background:var(--brand-2);opacity:.8}

/* ---------- 10. Platforms ---------- */
.platforms{padding-top:0}
.platform-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.platform-card{
  position:relative;padding:26px 24px;border-radius:16px;border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.018));
  transition:.35s var(--ease);overflow:hidden;
}
.platform-card:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.platform-card .p-logo{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;margin-bottom:16px;background:rgba(255,255,255,.06);border:1px solid var(--line)}
.platform-card .p-logo svg{width:20px;height:20px;fill:#fff}
.platform-card h4{font-size:1.02rem;margin-bottom:6px}
.platform-card p{font-size:.8rem;color:var(--muted);margin:0}
.platform-card .p-arrow{position:absolute;top:22px;right:20px;opacity:0;transition:.3s;color:var(--brand-2)}
.platform-card:hover .p-arrow{opacity:1;transform:translate(2px,-2px)}
.p-arrow svg{width:16px;height:16px}

/* ---------- 11. Cases ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.case-card{
  display:block;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  background:var(--bg-soft);transition:.45s var(--ease);
}
.case-card:hover{transform:translateY(-6px);border-color:rgba(var(--brand-rgb),.45);box-shadow:0 34px 80px -40px rgba(var(--brand-rgb),.75)}
.case-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.case-thumb .ct-bg{position:absolute;inset:0;transition:transform .7s var(--ease)}
.case-card:hover .ct-bg{transform:scale(1.06)}
.case-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 30%,rgba(5,6,11,.75));
}
.case-thumb .ct-no{
  position:absolute;left:20px;top:16px;z-index:2;font-family:var(--mono);font-size:.7rem;
  letter-spacing:.2em;color:rgba(255,255,255,.8);padding:5px 10px;border-radius:6px;background:rgba(0,0,0,.3);backdrop-filter:blur(6px);
}
.case-thumb .ct-tags{position:absolute;right:16px;top:16px;z-index:2;display:flex;gap:6px}
.case-thumb .ct-tags span{font-size:.66rem;padding:4px 9px;border-radius:var(--radius-pill);background:rgba(255,255,255,.16);backdrop-filter:blur(8px);color:#fff}
.case-body{padding:22px 24px 24px}
.case-body h3{font-size:1.12rem;margin-bottom:8px}
.case-body p{font-size:.84rem;color:var(--muted);margin-bottom:16px}
.case-stats{display:flex;gap:22px;padding-top:16px;border-top:1px solid var(--line)}
.case-stats div{display:flex;flex-direction:column}
.case-stats strong{font-size:1.06rem;font-weight:800;letter-spacing:-.02em;color:#fff}
.case-stats span{font-size:.66rem;color:var(--muted);letter-spacing:.06em}
.ct-tone-1{background:radial-gradient(circle at 25% 20%,#7b61ff,transparent 60%),radial-gradient(circle at 85% 80%,#21d4fd,transparent 55%),#101425}
.ct-tone-2{background:radial-gradient(circle at 70% 20%,#ff4d8d,transparent 55%),radial-gradient(circle at 20% 80%,#7b61ff,transparent 60%),#141020}
.ct-tone-3{background:radial-gradient(circle at 30% 70%,#21d4fd,transparent 55%),radial-gradient(circle at 80% 20%,#5bffb0,transparent 45%),#0c1520}
.ct-tone-4{background:radial-gradient(circle at 60% 60%,#ffb84d,transparent 50%),radial-gradient(circle at 20% 20%,#ff4d8d,transparent 55%),#1a1220}
.ct-tone-5{background:radial-gradient(circle at 40% 30%,#5b8cff,transparent 55%),radial-gradient(circle at 80% 75%,#7b61ff,transparent 60%),#0d1120}
.ct-tone-6{background:radial-gradient(circle at 25% 75%,#2ce5c8,transparent 50%),radial-gradient(circle at 75% 25%,#5b8cff,transparent 55%),#0b1420}

/* ---------- 12. Process ---------- */
.process{position:relative}
.process-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;position:relative}
.process-grid::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(var(--brand-rgb),.55),rgba(var(--brand-2-rgb),.55),transparent);
}
.step{position:relative;padding-top:0}
.step-num{
  width:52px;height:52px;border-radius:50%;display:grid;place-items:center;margin-bottom:22px;
  background:var(--bg);border:1px solid var(--line-strong);font-family:var(--mono);font-size:.82rem;
  position:relative;z-index:2;transition:.35s;
}
.step:hover .step-num{border-color:var(--brand-2);color:var(--brand-2);box-shadow:0 0 30px -8px rgba(var(--brand-2-rgb),.6)}
.step h3{font-size:1.05rem;margin-bottom:8px}
.step p{font-size:.84rem;color:var(--muted);margin:0}

/* ---------- 13. Feature rows ---------- */
.feature-row{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(28px,5vw,64px);align-items:center;padding:clamp(40px,6vw,72px) 0;border-bottom:1px solid var(--line)}
.feature-row:nth-child(even) .fr-media{order:2}
.fr-media{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:5/4;border:1px solid var(--line)}
.fr-media .fm-bg{position:absolute;inset:0}
.fr-media .fm-float{position:absolute;bottom:20px;left:20px;right:20px;padding:16px 18px;border-radius:12px;background:rgba(9,11,18,.78);backdrop-filter:blur(14px);border:1px solid var(--line)}
.fr-media .fm-float .mono{font-size:.62rem}
.fr-media .fm-float strong{display:block;font-size:1.5rem;font-weight:800;margin-top:2px}
.fr-body .h3{margin-bottom:14px}
.fr-body p{color:var(--text-2);font-size:.95rem}
.fr-list{display:grid;grid-template-columns:1fr 1fr;gap:10px 20px;margin:24px 0 26px}
.fr-list li{position:relative;padding-left:20px;font-size:.86rem;color:var(--text-2)}
.fr-list li::before{content:"";position:absolute;left:0;top:.55em;width:7px;height:7px;border-radius:2px;background:var(--grad)}

/* ---------- 14. Tabs (platform pages) ---------- */
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}
.tab-btn{padding:11px 22px;border-radius:var(--radius-pill);border:1px solid var(--line);font-size:.86rem;color:var(--text-2);transition:.3s}
.tab-btn:hover{color:#fff;border-color:var(--line-strong)}
.tab-btn.is-active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:var(--glow)}
.tab-panel{display:none}
.tab-panel.is-active{display:block;animation:fadeUp .5s var(--ease)}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* ---------- 15. Filter bar ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px;padding-bottom:24px;border-bottom:1px solid var(--line)}
.filter-btn{padding:8px 18px;border-radius:var(--radius-pill);border:1px solid var(--line);font-size:.82rem;color:var(--text-2);transition:.25s}
.filter-btn:hover{color:#fff;border-color:var(--line-strong)}
.filter-btn.is-active{background:#fff;color:#08090f;border-color:#fff;font-weight:600}

/* ---------- 16. FAQ ---------- */
.accordion{border-top:1px solid var(--line)}
.acc-item{border-bottom:1px solid var(--line)}
.acc-head{width:100%;display:flex;justify-content:space-between;align-items:center;gap:24px;padding:24px 4px;text-align:left;font-size:1.02rem;font-weight:600;color:#fff;transition:color .25s}
.acc-head:hover{color:var(--brand-2)}
.acc-icon{width:32px;height:32px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;flex:none;transition:.35s var(--ease);position:relative}
.acc-icon::before,.acc-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.acc-icon::before{width:12px;height:1.5px}
.acc-icon::after{width:1.5px;height:12px;transition:.3s}
.acc-item.is-open .acc-icon{background:var(--grad);border-color:transparent}
.acc-item.is-open .acc-icon::after{transform:rotate(90deg);opacity:0}
.acc-body{max-height:0;overflow:hidden;transition:max-height .45s var(--ease)}
.acc-body p{padding:0 60px 24px 4px;color:var(--text-2);font-size:.93rem;margin:0}

/* ---------- 17. CTA band ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:28px;padding:clamp(44px,6vw,76px);border:1px solid rgba(var(--brand-rgb),.32);background:linear-gradient(120deg,rgba(var(--brand-rgb),.22),rgba(var(--brand-2-rgb),.1) 60%,rgba(var(--accent-rgb),.12))}
.cta-band::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:54px 54px;mask-image:radial-gradient(circle at 80% 30%,#000,transparent 70%);-webkit-mask-image:radial-gradient(circle at 80% 30%,#000,transparent 70%)}
.cta-inner{position:relative;display:flex;justify-content:space-between;align-items:center;gap:40px;flex-wrap:wrap}
.cta-inner .h2{margin-bottom:12px}
.cta-inner p{color:var(--text-2);margin:0;max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 18. Page hero (inner pages) ---------- */
.page-hero{position:relative;padding:150px 0 64px;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero .hero-grid{opacity:.7}
.page-hero-inner{position:relative;max-width:820px}
.page-hero h1{font-size:clamp(2.1rem,4.2vw,3.4rem);margin-bottom:18px;letter-spacing:-.03em}
.page-hero p{color:var(--text-2);font-size:1.02rem;max-width:640px;margin:0}
.breadcrumb{display:flex;gap:8px;align-items:center;font-size:.76rem;color:var(--muted);margin-bottom:22px;font-family:var(--mono);letter-spacing:.08em}
.breadcrumb a:hover{color:#fff}
.breadcrumb span.sep{opacity:.4}

/* ---------- 19. Content (Gutenberg / classic) ---------- */
.entry-content{font-size:1rem;color:var(--text-2);line-height:1.95}
.entry-content h2,.entry-content h3,.entry-content h4{color:#fff;margin:2em 0 .7em;letter-spacing:-.02em}
.entry-content h2{font-size:1.75rem}
.entry-content h3{font-size:1.32rem}
.entry-content p{margin:0 0 1.3em}
.entry-content ul,.entry-content ol{margin:0 0 1.4em;padding-left:22px}
.entry-content ul li{list-style:none;position:relative;padding-left:14px;margin-bottom:.6em}
.entry-content ul li::before{content:"";position:absolute;left:0;top:.65em;width:6px;height:6px;border-radius:2px;background:var(--grad)}
.entry-content ol{list-style:decimal}
.entry-content ol li{margin-bottom:.6em;padding-left:6px}
.entry-content a{color:var(--brand-2);text-decoration:underline;text-underline-offset:3px}
.entry-content blockquote{margin:1.6em 0;padding:20px 26px;border-left:2px solid var(--brand);background:rgba(var(--brand-rgb),.08);border-radius:0 12px 12px 0;color:var(--text)}
.entry-content img{border-radius:14px;margin:1.6em 0}
.entry-content table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:.9rem}
.entry-content th,.entry-content td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.entry-content th{background:rgba(255,255,255,.04);color:#fff}
.entry-content figure{margin:1.6em 0}
.entry-content figcaption{font-size:.78rem;color:var(--muted);text-align:center;margin-top:8px}
.entry-content .wp-block-button__link{background:var(--grad);border-radius:999px;color:#fff;border:0}
.alignwide{width:min(1100px,100%);margin-left:auto;margin-right:auto}
.alignfull{width:100vw;margin-left:calc(50% - 50vw)}

/* ---------- 20. Case single ---------- */
.case-single-hero{padding:140px 0 40px;position:relative;overflow:hidden}
.case-single-hero .hero-grid{opacity:.6}
.case-single-title{font-size:clamp(2rem,4vw,3.2rem);max-width:900px;margin-bottom:20px}
.case-single-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.case-cover{border-radius:24px;overflow:hidden;border:1px solid var(--line);aspect-ratio:21/9;position:relative;margin-bottom:48px}
.case-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:0 0 48px}
.case-fact{padding:24px;border-radius:16px;border:1px solid var(--line);background:var(--panel)}
.case-fact strong{display:block;font-size:1.7rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.case-fact span{font-size:.76rem;color:var(--muted)}
.case-nav{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:56px;padding-top:28px;font-size:.86rem}

/* ---------- 21. Blog list ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.post-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--bg-soft);transition:.4s var(--ease)}
.post-card:hover{transform:translateY(-5px);border-color:rgba(var(--brand-rgb),.4)}
.post-thumb{aspect-ratio:16/9;position:relative;overflow:hidden}
.post-thumb .ct-bg{position:absolute;inset:0;transition:transform .6s var(--ease)}
.post-card:hover .post-thumb .ct-bg{transform:scale(1.05)}
.post-body{padding:22px 24px 26px}
.post-meta{display:flex;gap:12px;font-size:.72rem;color:var(--muted);font-family:var(--mono);letter-spacing:.08em;margin-bottom:10px}
.post-body h3{font-size:1.06rem;line-height:1.45;margin-bottom:10px}
.post-body p{font-size:.84rem;color:var(--muted);margin:0}

/* ---------- 22. Contact / forms ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(32px,5vw,64px);align-items:start}
.contact-info{display:grid;gap:14px}
.info-card{display:flex;gap:16px;padding:22px;border-radius:16px;border:1px solid var(--line);background:var(--panel)}
.info-icon{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;background:var(--grad-soft);border:1px solid rgba(var(--brand-rgb),.3);flex:none;color:#cfc6ff}
.info-icon svg{width:18px;height:18px}
.info-card .mono{font-size:.64rem;letter-spacing:.16em;display:block;margin-bottom:2px}
.info-card strong{font-size:1.02rem;font-weight:600;color:#fff;word-break:break-all}
.form-card{padding:clamp(26px,4vw,40px);border-radius:var(--radius);border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02))}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:.78rem;color:var(--text-2);letter-spacing:.04em}
.field label .req{color:var(--accent)}
.field input,.field textarea,.field select{
  width:100%;padding:13px 16px;border-radius:10px;border:1px solid var(--line);
  background:rgba(0,0,0,.28);color:#fff;outline:none;transition:.25s;
}
.field select{appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238a92a6' stroke-width='2'><path d='M6 9l6 6 6-6'/></svg>");background-repeat:no-repeat;background-position:right 16px center}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(var(--brand-rgb),.18);background:rgba(0,0,0,.45)}
.field textarea{resize:vertical;min-height:110px}
.field input::placeholder,.field textarea::placeholder{color:#5f6678}
.form-note{font-size:.72rem;color:var(--muted);margin-top:14px;margin-bottom:0}
.alert{padding:14px 18px;border-radius:12px;font-size:.86rem;margin-bottom:20px}
.alert-ok{background:rgba(44,229,200,.1);border:1px solid rgba(44,229,200,.35);color:#8ef3e2}
.alert-err{background:rgba(255,77,109,.1);border:1px solid rgba(255,77,109,.35);color:#ffb3c1}

/* ---------- 23. Footer ---------- */
.site-footer{position:relative;margin-top:clamp(60px,8vw,110px);border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.02),transparent)}
.footer-main{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:40px;padding:clamp(50px,6vw,80px) 0}
.footer-brand p{font-size:.88rem;color:var(--muted);margin:18px 0 22px;max-width:320px}
.footer-social{display:flex;gap:10px}
.footer-social a{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;color:var(--text-2);transition:.3s}
.footer-social a:hover{background:var(--grad);color:#fff;border-color:transparent;transform:translateY(-2px)}
.footer-social svg{width:16px;height:16px}
.footer-col h4{font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:#fff;margin-bottom:20px;font-family:var(--mono);font-weight:500}
.footer-col li{margin-bottom:11px}
.footer-col a,.footer-col span{font-size:.88rem;color:var(--muted)}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid var(--line);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.76rem;color:#6d7488}
.footer-bottom a:hover{color:#fff}

/* ---------- 24. Reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.08s}
.reveal[data-delay="2"]{transition-delay:.16s}
.reveal[data-delay="3"]{transition-delay:.24s}
.reveal[data-delay="4"]{transition-delay:.32s}

/* ---------- 25. Utilities ---------- */
.mt-0{margin-top:0}
.mt-40{margin-top:40px}
.text-center{text-align:center}
.divider{height:1px;background:var(--line);margin:0}
.center-cta{display:flex;justify-content:center;margin-top:44px}
.pagination{display:flex;gap:8px;justify-content:center;margin-top:48px;flex-wrap:wrap}
.pagination .page-numbers{padding:9px 15px;border-radius:10px;border:1px solid var(--line);font-size:.84rem;color:var(--text-2)}
.pagination .page-numbers.current{background:var(--grad);color:#fff;border-color:transparent}
.pagination .page-numbers:hover{border-color:var(--line-strong);color:#fff}

/* ---------- 26. Responsive ---------- */
@media (max-width:1080px){
  .nav{display:none}
  .menu-toggle{display:flex}
  .header-actions .btn{display:none}
  .hero-inner{grid-template-columns:1fr;gap:48px}
  .hero-visual{max-width:460px}
  .float-chip.chip-a{right:-8px}
  .float-chip.chip-b{left:-8px}
  .grid-4,.platform-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid,.post-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .process-grid::before{display:none}
  .footer-main{grid-template-columns:1fr 1fr;gap:36px}
  .split,.contact-grid{grid-template-columns:1fr}
  .feature-row{grid-template-columns:1fr;gap:28px}
  .feature-row:nth-child(even) .fr-media{order:0}
}
@media (max-width:720px){
  .section{padding:64px 0}
  .stats-inner{grid-template-columns:1fr 1fr}
  .stat{border-bottom:1px solid var(--line);padding:26px 16px}
  .stat:nth-child(2n){border-right:0}
  .stat:nth-last-child(-n+2){border-bottom:0}
  .grid-2,.grid-3,.grid-4,.case-grid,.post-grid,.platform-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .hero{padding:130px 0 60px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .case-facts{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .acc-body p{padding-right:16px}
  .fr-list{grid-template-columns:1fr}
  .video-card{aspect-ratio:4/5}
  .page-hero{padding:126px 0 48px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- 27. Additional components ---------- */
.nav-list{display:flex;align-items:center;gap:2px}
.mobile-nav .mobile-nav-list{display:flex;flex-direction:column}
.mobile-nav .mobile-nav-list a{display:block;padding:16px 4px;font-size:1.35rem;font-weight:700;border-bottom:1px solid var(--line);color:var(--text)}
.mobile-nav .mobile-nav-list a.is-active{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* quote */
.quote-card{
  position:relative;margin:0;padding:32px 30px 28px;border-radius:var(--radius);
  border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.018));
  display:flex;flex-direction:column;justify-content:space-between;gap:26px;transition:.4s var(--ease);
}
.quote-card:hover{border-color:rgba(var(--brand-rgb),.4);transform:translateY(-4px)}
.quote-mark{color:rgba(var(--brand-rgb),.55);display:block}
.quote-card p{font-size:.98rem;line-height:1.9;color:var(--text);margin:0}
.quote-card footer{display:flex;align-items:center;gap:12px;padding-top:20px;border-top:1px solid var(--line)}
.quote-avatar{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;flex:none;
  background:var(--grad-soft);border:1px solid rgba(var(--brand-rgb),.35);color:var(--brand-tint);font-weight:700;
}
.quote-card footer strong{display:block;font-size:.88rem;color:#fff}
.quote-card footer small{display:block;font-size:.74rem;color:var(--muted)}

/* logo wall */
.logo-wall{margin-top:56px;padding-top:34px;border-top:1px solid var(--line);display:flex;align-items:center;gap:32px;flex-wrap:wrap}
.logo-row{display:flex;flex-wrap:wrap;gap:14px 36px;flex:1}
.logo-row span{font-size:.92rem;font-weight:600;color:#6d7488;letter-spacing:.02em;transition:color .3s}
.logo-row span:hover{color:#c9cfe0}

/* section footer link */
.section-foot{display:flex;justify-content:center;margin-top:44px}

/* tabs content */
.platform-detail{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,56px);align-items:center}
.platform-detail .pd-title{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.platform-detail .pd-logo{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:rgba(255,255,255,.06);border:1px solid var(--line)}
.platform-detail .pd-logo svg{width:26px;height:26px;fill:#fff}
.pd-list{display:grid;gap:12px;margin-top:26px}
.pd-list li{display:flex;gap:12px;align-items:flex-start;font-size:.92rem;color:var(--text-2)}
.pd-list li svg{width:16px;height:16px;color:var(--brand-2);flex:none;margin-top:.4em}
.pd-media{aspect-ratio:4/3.2;border-radius:var(--radius);border:1px solid var(--line);position:relative;overflow:hidden}

/* contact quick */
.quick-contact{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px}

/* city page */
.city-hero{padding:150px 0 60px;position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.city-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(var(--brand-2-rgb),.1);border:1px solid rgba(var(--brand-2-rgb),.3);color:var(--brand-tint-2);font-size:.76rem;margin-bottom:18px}
.city-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(28px,5vw,64px);align-items:start}
.city-links{display:flex;flex-wrap:wrap;gap:8px}
.city-links a{font-size:.8rem;padding:6px 12px;border:1px solid var(--line);border-radius:999px;color:var(--text-2)}
.city-links a:hover{border-color:var(--brand);color:#fff;background:rgba(var(--brand-rgb),.12)}

@media (max-width:1080px){
  .platform-detail{grid-template-columns:1fr}
  .city-grid{grid-template-columns:1fr}
  .quick-contact{grid-template-columns:1fr}
}

/* ---------- 28. 前台配色切换器（演示用，可在后台关闭） ---------- */
.ob-switcher{
  position:fixed;right:18px;bottom:18px;z-index:9999;
  display:flex;align-items:center;gap:9px;padding:9px 13px;border-radius:var(--radius-pill);
  background:rgba(10,12,20,.9);border:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:0 12px 40px -8px rgba(0,0,0,.6);
}
.ob-switcher-label{font-size:.72rem;letter-spacing:.08em;color:var(--muted);margin-right:2px}
.ob-switcher-dot{
  width:20px;height:20px;border-radius:50%;padding:0;
  border:2px solid rgba(255,255,255,.22);transition:.25s var(--ease);
}
.ob-switcher-dot:hover{transform:scale(1.15)}
.ob-switcher-dot.is-active{border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.14)}
@media (max-width:640px){
  .ob-switcher{right:12px;bottom:12px;padding:7px 10px;gap:7px}
  .ob-switcher-label{display:none}
  .ob-switcher-dot{width:18px;height:18px}
}