/* ============================================================
   Mickey AI · 2026 Redesign
   框架：单色 + 玻璃拟态 + Bento 网格 + 动效
   ============================================================ */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

:root{
  --font: "Inter","Noto Sans SC",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;

  /* 亮色 */
  --bg:#f6f6f7;
  --bg-elev:#ffffff;
  --surface:rgba(255,255,255,.72);
  --surface-solid:#ffffff;
  --border:rgba(0,0,0,.08);
  --border-strong:rgba(0,0,0,.14);
  --text-1:#0a0a0b;
  --text-2:#52525b;
  --text-3:#a1a1aa;
  --ink:#0a0a0b;
  --on-ink:#ffffff;
  --glow:rgba(0,0,0,.06);
  --checker-a:#ececee; --checker-b:#ffffff;
  --shadow-sm:0 1px 2px rgba(0,0,0,.05);
  --shadow-md:0 8px 30px rgba(0,0,0,.08);
  --shadow-lg:0 24px 60px rgba(0,0,0,.12);
  --radius-lg:24px; --radius-md:16px; --radius-sm:10px;
  --nav-h:76px;
}
html[data-theme="dark"]{
  --bg:#0a0a0c;
  --bg-elev:#121215;
  --surface:rgba(255,255,255,.045);
  --surface-solid:#151518;
  --border:rgba(255,255,255,.09);
  --border-strong:rgba(255,255,255,.16);
  --text-1:#f4f4f5;
  --text-2:#a1a1aa;
  --text-3:#63636e;
  --ink:#f4f4f5;
  --on-ink:#0a0a0c;
  --glow:rgba(255,255,255,.05);
  --checker-a:#1c1c20; --checker-b:#121215;
  --shadow-sm:0 1px 2px rgba(0,0,0,.4);
  --shadow-md:0 8px 30px rgba(0,0,0,.5);
  --shadow-lg:0 24px 60px rgba(0,0,0,.6);
}

html{ scroll-behavior:smooth; -webkit-font-smoothing:antialiased; }
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text-1);
  line-height:1.6;
  overflow-x:hidden;
  transition:background .4s ease,color .4s ease;
}
::selection{ background:var(--ink); color:var(--on-ink); }
a{ color:inherit; }
button{ font-family:inherit; }
.container{ max-width:1200px; margin:0 auto; padding:0 28px; }

/* ---------- 背景光效层 ---------- */
.aurora{
  position:fixed; inset:0; z-index:-2; pointer-events:none; overflow:hidden;
}
.aurora::before,.aurora::after{
  content:""; position:absolute; border-radius:50%; filter:blur(90px); opacity:.5;
}
.aurora::before{
  width:640px; height:640px; top:-260px; left:-140px;
  background:radial-gradient(circle,var(--glow),transparent 70%);
}
.aurora::after{
  width:520px; height:520px; top:-160px; right:-120px;
  background:radial-gradient(circle,var(--glow),transparent 70%);
}
html[data-theme="dark"] .aurora::before{ background:radial-gradient(circle,rgba(255,255,255,.07),transparent 70%); }
html[data-theme="dark"] .aurora::after{ background:radial-gradient(circle,rgba(255,255,255,.05),transparent 70%); }
.grain{
  position:fixed; inset:0; z-index:-1; pointer-events:none; opacity:.35; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
}

/* ============ 导航 ============ */
.nav-wrap{
  position:sticky; top:0; z-index:1000;
  padding-top:14px;
}
.nav{
  width:min(1160px,calc(100% - 32px));
  margin:0 auto;
  height:var(--nav-h);
  transform:translateZ(0);
  -webkit-transform:translateZ(0);
  z-index:1000;
  display:flex; align-items:center; justify-content:space-between;
  padding:0 12px 0 20px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:20px;
  backdrop-filter:saturate(180%) blur(24px);
  -webkit-backdrop-filter:saturate(180%) blur(24px);
  box-shadow:var(--shadow-sm);
  transition:background .4s ease,border-color .4s ease,box-shadow .3s ease;
}
.nav.scrolled{ box-shadow:var(--shadow-md); }
.nav-logo{
  display:flex; align-items:center; gap:11px; text-decoration:none;
}
.logo-mark{
  width:38px; height:38px; border-radius:12px;
  background:var(--ink); color:var(--on-ink);
  display:flex; align-items:center; justify-content:center;
  font-weight:800; font-size:19px;
  transition:transform .3s cubic-bezier(.34,1.56,.64,1);
}
.nav-logo:hover .logo-mark{ transform:rotate(-8deg) scale(1.06); }
.logo-word{ font-weight:700; font-size:16.5px; letter-spacing:-.02em; }
.nav-links{ display:flex; align-items:center; gap:4px; }
.nav-item{
  position:relative; padding:9px 15px; border-radius:12px;
  font-size:14.5px; font-weight:500; color:var(--text-2);
  text-decoration:none; transition:.2s; display:flex; align-items:center; gap:5px;
}
.nav-item:hover{ color:var(--text-1); background:var(--surface); }
.nav-item.active{ color:var(--text-1); }
.nav-item .chev{ width:14px; height:14px; transition:transform .25s; }
.nav-drop-wrap:hover .chev{ transform:rotate(180deg); }
.nav-drop-wrap{ position:relative; }
/* 隐形悬停桥：覆盖下拉面板与导航项之间的空隙，鼠标移动不断开 hover */
.nav-drop-wrap::after{
  content:""; position:absolute; top:100%; left:-10px; right:-10px; height:16px;
  background:transparent; pointer-events:auto; z-index:1000;
}
.dropdown{
  position:absolute; top:calc(100% + 10px); left:50%; transform:translateX(-50%) translateY(8px);
  min-width:230px; padding:8px;
  background:var(--surface-solid);
  border:1px solid var(--border); border-radius:16px;
  box-shadow:var(--shadow-lg);
  opacity:0; visibility:hidden; pointer-events:none;
  transition:opacity .25s cubic-bezier(.22,1,.36,1),transform .25s cubic-bezier(.22,1,.36,1),visibility 0s linear .15s;
  z-index:1001;
}
.nav-drop-wrap:hover .dropdown,.dropdown:hover{
  opacity:1; visibility:visible; pointer-events:auto; transform:translateX(-50%) translateY(0);
  transition:opacity .25s cubic-bezier(.22,1,.36,1),transform .25s cubic-bezier(.22,1,.36,1),visibility 0s;
}
.drop-link{
  display:flex; align-items:center; gap:12px; padding:11px 14px;
  border-radius:11px; text-decoration:none; font-size:14px; color:var(--text-2);
  transition:.15s;
}
.drop-link:hover{ background:var(--surface); color:var(--text-1); }
.drop-link svg{ width:17px; height:17px; flex-shrink:0; }
.drop-link .tag{
  margin-left:auto; font-size:10.5px; font-weight:600; padding:3px 9px;
  background:var(--ink); color:var(--on-ink); border-radius:999px;
}
.nav-actions{ display:flex; align-items:center; gap:8px; }
.icon-btn{
  width:40px; height:40px; border-radius:12px; border:1px solid var(--border);
  background:transparent; color:var(--text-2); cursor:pointer;
  display:flex; align-items:center; justify-content:center; transition:.2s;
}
.icon-btn:hover{ color:var(--text-1); border-color:var(--border-strong); }
.icon-btn svg{ width:18px; height:18px; }
.btn-ink{
  display:inline-flex; align-items:center; gap:8px;
  background:var(--ink); color:var(--on-ink);
  padding:10px 22px; border-radius:13px; border:none;
  font-size:14.5px; font-weight:600; text-decoration:none; cursor:pointer;
  transition:.25s cubic-bezier(.22,1,.36,1);
  white-space:nowrap;
}
.btn-ink:hover{ transform:translateY(-1px); box-shadow:var(--shadow-md); }
.btn-ghost-ink{
  display:inline-flex; align-items:center;
  background:transparent; color:var(--text-1);
  padding:9px 20px; border-radius:13px; border:1px solid var(--border-strong);
  font-size:14.5px; font-weight:600; text-decoration:none; transition:.2s;
}
.btn-ghost-ink:hover{ background:var(--surface); }

/* 移动端 */
.hamburger{ display:none; }
.mobile-panel{
  display:none; position:fixed; top:96px; left:16px; right:16px;
  background:var(--surface-solid); border:1px solid var(--border); border-radius:18px;
  box-shadow:var(--shadow-lg); padding:10px; z-index:1000;
}
.mobile-panel.open{ display:block; animation:slideDown .25s cubic-bezier(.22,1,.36,1); }
@keyframes slideDown{ from{opacity:0;transform:translateY(-10px);} to{opacity:1;transform:none;} }
.mobile-panel a{
  display:flex; align-items:center; padding:13px 15px; border-radius:11px;
  text-decoration:none; font-size:15px; color:var(--text-2); font-weight:500;
}
.mobile-panel a:hover{ background:var(--surface); color:var(--text-1); }
.mobile-panel .m-divider{ height:1px; background:var(--border); margin:6px 10px; }

/* ============ Hero ============ */
.hero{
  padding:96px 0 64px;
  text-align:center; position:relative;
}
.hero-badge{
  display:inline-flex; align-items:center; gap:9px;
  padding:7px 16px; border-radius:999px;
  background:var(--surface); border:1px solid var(--border);
  font-size:13px; font-weight:500; color:var(--text-2);
  backdrop-filter:blur(12px); margin-bottom:28px;
}
.hero-badge .pulse{
  width:7px; height:7px; border-radius:50%; background:var(--text-1); position:relative;
}
.hero-badge .pulse::after{
  content:""; position:absolute; inset:-4px; border-radius:50%;
  border:1px solid var(--text-1); opacity:.5; animation:pulse 2s ease-out infinite;
}
@keyframes pulse{ 0%{transform:scale(.6);opacity:.6;} 100%{transform:scale(1.6);opacity:0;} }
.hero h1{
  font-size:clamp(42px,7vw,72px); font-weight:900; letter-spacing:-.045em; line-height:1.06;
  margin-bottom:22px;
}
.hero h1 .grad{
  background:linear-gradient(120deg,var(--text-1) 30%,var(--text-3) 65%,var(--text-1) 100%);
  background-size:200% auto;
  -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent;
  animation:shine 6s linear infinite;
}
html[data-theme="dark"] .hero h1 .grad{
  background:linear-gradient(120deg,#fff 25%,#71717a 60%,#fff 90%);
  background-size:200% auto;
  -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent;
}
@keyframes shine{ to{ background-position:200% center; } }
.hero p{
  font-size:clamp(15px,1.6vw,18px); color:var(--text-2); max-width:620px;
  margin:0 auto 40px; line-height:1.75;
}
.hero-chips{ display:flex; gap:10px; justify-content:center; flex-wrap:wrap; margin-bottom:56px; }
.chip{
  display:inline-flex; align-items:center; gap:7px;
  padding:8px 16px; border-radius:999px; font-size:13px; font-weight:500;
  background:var(--surface); border:1px solid var(--border); color:var(--text-2);
}
.chip svg{ width:14px; height:14px; }
.chip:hover{ color:var(--text-1); border-color:var(--border-strong); transition:.2s; }

/* ============ 工具卡片 ============ */
.tool-card{
  max-width:920px; margin:0 auto;
  background:var(--surface);
  border:1px solid var(--border); border-radius:28px;
  backdrop-filter:blur(24px); -webkit-backdrop-filter:blur(24px);
  box-shadow:var(--shadow-lg);
  padding:clamp(22px,4vw,44px);
  position:relative; overflow:hidden;
}
.tool-card::before{
  content:""; position:absolute; top:0; left:10%; right:10%; height:1px;
  background:linear-gradient(90deg,transparent,var(--border-strong),transparent);
}
/* 工具卡片内功能区 TAB 栏 */
.tool-tabs{
  display:flex; gap:4px; flex-wrap:wrap;
  background:var(--glow); border:1px solid var(--border);
  border-radius:14px; padding:5px; margin-bottom:22px;
  width:fit-content; max-width:100%;
}
.tool-tab{
  padding:9px 22px; border-radius:10px;
  font-size:14px; font-weight:600; color:var(--text-2);
  text-decoration:none; transition:.2s; white-space:nowrap;
}
.tool-tab:hover{ color:var(--text-1); }
.tool-tab.active{
  background:var(--ink); color:var(--on-ink);
  box-shadow:var(--shadow-sm);
}
@media (max-width: 480px){
  .tool-tabs{ width:100%; }
  .tool-tab{ flex:1; text-align:center; padding:9px 8px; font-size:13px; }
}

/* 工具面板同页切换 */
.tool-panels{ position:relative; }
.tool-panel{ display:none; }
.tool-panel.active{ display:block; animation:panelIn .3s cubic-bezier(.22,1,.36,1); }
@keyframes panelIn{ from{opacity:0; transform:translateY(8px);} to{opacity:1; transform:none;} }
.panel-loading{ text-align:center; padding:64px 0; }
.panel-loading .spinner-ring{ display:inline-block; }
.panel-loading-text{ margin-top:16px; font-size:14px; color:var(--text-2); }

/* 压缩结果信息条 */
.info-row{ display:flex; justify-content:center; gap:14px; flex-wrap:wrap; margin-bottom:22px; }
.info-item{
  background:var(--surface-solid); border:1px solid var(--border); border-radius:14px;
  padding:12px 26px; text-align:center; min-width:110px;
}
.info-item .num{ font-size:20px; font-weight:800; letter-spacing:-.02em; font-variant-numeric:tabular-nums; }
.info-item .tip{ font-size:12px; color:var(--text-3); margin-top:2px; }

/* 批量处理列表 */
.batch-list{ display:flex; flex-direction:column; gap:10px; margin-top:4px; }
.batch-item{
  display:flex; align-items:center; gap:14px;
  background:var(--surface-solid); border:1px solid var(--border); border-radius:14px;
  padding:10px 16px;
}
.batch-thumb{ width:48px; height:48px; border-radius:10px; object-fit:cover; flex-shrink:0; }
.batch-meta{ flex:1; min-width:0; }
.batch-name{ font-size:13.5px; font-weight:600; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.batch-size{ font-size:12px; color:var(--text-3); }
.batch-status{ font-size:12.5px; font-weight:600; flex-shrink:0; }
.batch-status.st-wait{ color:var(--text-3); }
.batch-status.st-doing{ color:#2563eb; }
.batch-status.st-done{ color:#16a34a; }
.batch-status.st-fail{ color:#dc2626; }
.batch-dl{
  flex-shrink:0; font-size:12.5px; font-weight:600; color:var(--on-ink);
  background:var(--ink); padding:7px 16px; border-radius:9px; text-decoration:none;
}
.batch-dl:hover{ opacity:.85; }

.point-tip{
  display:flex; align-items:center; gap:10px;
  margin-bottom:22px; padding:12px 18px; border-radius:14px;
  font-size:14px; font-weight:500;
}
.point-tip svg{ width:17px; height:17px; flex-shrink:0; }
.point-admin{ background:rgba(34,197,94,.1); color:#16a34a; border:1px solid rgba(34,197,94,.25); }
.point-normal{ background:rgba(59,130,246,.1); color:#2563eb; border:1px solid rgba(59,130,246,.25); }
.point-guest{ background:rgba(245,158,11,.1); color:#d97706; border:1px solid rgba(245,158,11,.25); }
.point-zero{ background:rgba(239,68,68,.1); color:#dc2626; border:1px solid rgba(239,68,68,.25); }
.point-zero a,.point-guest a{ color:inherit; text-decoration:underline; font-weight:600; }

.upload-box{
  border:1.5px dashed var(--border-strong); border-radius:20px;
  background:var(--surface);
  padding:clamp(48px,8vw,84px) 24px;
  text-align:center; cursor:pointer;
  transition:.25s cubic-bezier(.22,1,.36,1);
  position:relative;
}
.upload-box:hover,.upload-box.is-drag{
  border-color:var(--text-1); transform:scale(1.008);
  background:var(--glow);
}
.upload-box.is-drag{ box-shadow:0 0 0 6px var(--glow); }
.upload-orb{
  width:72px; height:72px; margin:0 auto 20px;
  border-radius:22px; background:var(--ink);
  display:flex; align-items:center; justify-content:center;
  transition:transform .3s cubic-bezier(.34,1.56,.64,1);
}
.upload-box:hover .upload-orb{ transform:translateY(-4px) rotate(-4deg); }
.upload-orb svg{ width:30px; height:30px; stroke:var(--on-ink); }
.upload-title{ font-size:clamp(17px,2vw,21px); font-weight:700; margin-bottom:8px; letter-spacing:-.01em; }
.upload-desc{ font-size:14px; color:var(--text-2); margin-bottom:4px; }
.upload-note{ font-size:12.5px; color:var(--text-3); }
.upload-box input{ display:none; }

.loading-spinner{ display:none; text-align:center; padding:56px 0; }
.loading-spinner.active{ display:block; }
.spinner-ring{
  display:inline-block; width:52px; height:52px;
  border:3px solid var(--border); border-top-color:var(--text-1);
  border-radius:50%; animation:spin .8s linear infinite;
}
@keyframes spin{ to{ transform:rotate(360deg);} }
.spinner-text{ margin-top:18px; font-size:15px; color:var(--text-2); font-weight:500; }
.spinner-text small{ display:block; font-size:12px; color:var(--text-3); margin-top:6px; }
.spinner-dots::after{ content:''; animation:dots 1.5s steps(4,end) infinite; }
@keyframes dots{ 0%{content:'';} 25%{content:'.';} 50%{content:'..';} 75%{content:'...';} 100%{content:'';} }

.result-info{ display:none; }
.preview-wrap{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.preview-col h5{ font-size:13px; color:var(--text-2); margin-bottom:10px; font-weight:600; display:flex; align-items:center; gap:6px; }
.preview-col h5::before{ content:""; width:6px; height:6px; border-radius:50%; background:var(--text-3); }
.preview-frame{
  border-radius:16px; overflow:hidden; border:1px solid var(--border);
  background:var(--surface-solid); padding:10px;
}
.checker-bg{
  background-image:linear-gradient(45deg,var(--checker-a) 25%,transparent 25%),linear-gradient(-45deg,var(--checker-a) 25%,transparent 25%),linear-gradient(45deg,transparent 75%,var(--checker-a) 75%),linear-gradient(-45deg,transparent 75%,var(--checker-a) 75%);
  background-size:16px 16px; background-color:var(--checker-b);
  border-radius:12px;
}
.preview-img{ max-width:100%; max-height:420px; border-radius:12px; display:block; margin:0 auto; }
.action-bar{ display:flex; gap:12px; justify-content:center; margin-top:28px; flex-wrap:wrap; }
.btn{
  padding:14px 34px; border-radius:14px; font-size:14.5px; font-weight:600;
  cursor:pointer; border:none; transition:.22s cubic-bezier(.22,1,.36,1);
  text-decoration:none; display:inline-flex; align-items:center; gap:8px;
}
.btn svg{ width:16px; height:16px; }
.btn-ink-solid{ background:var(--ink); color:var(--on-ink); }
.btn-ink-solid:hover{ transform:translateY(-2px); box-shadow:var(--shadow-md); }
.btn-outline{ background:transparent; color:var(--text-1); border:1px solid var(--border-strong); }
.btn-outline:hover{ background:var(--surface); }
.error-tip{
  display:none; margin-top:22px; padding:14px 18px;
  background:rgba(239,68,68,.08); border:1px solid rgba(239,68,68,.25);
  border-radius:14px; color:#dc2626; font-size:14px; text-align:center;
}

/* ============ 统计横幅 ============ */
.stats-banner{
  margin-top:72px;
  display:grid; grid-template-columns:repeat(4,1fr);
  background:var(--ink); color:var(--on-ink);
  border-radius:28px; overflow:hidden; position:relative;
}
.stats-banner::before{
  content:""; position:absolute; inset:0;
  background:radial-gradient(600px 200px at 50% -40%,rgba(255,255,255,.14),transparent);
  pointer-events:none;
}
.stat-item{ padding:40px 20px; text-align:center; position:relative; }
.stat-item + .stat-item::before{
  content:""; position:absolute; left:0; top:24%; bottom:24%; width:1px;
  background:currentColor; opacity:.12;
}
.stat-num{ font-size:clamp(28px,3.4vw,40px); font-weight:800; letter-spacing:-.03em; font-variant-numeric:tabular-nums; }
.stat-label{ font-size:12.5px; opacity:.55; margin-top:6px; letter-spacing:.06em; text-transform:uppercase; }

/* ============ 通用区块 ============ */
section{ padding:96px 0 8px; }
.sec-head{ text-align:center; margin-bottom:52px; }
.sec-eyebrow{
  display:inline-block; font-size:12px; font-weight:700; letter-spacing:.14em;
  text-transform:uppercase; color:var(--text-3); margin-bottom:14px;
}
.sec-head h2{ font-size:clamp(28px,4vw,42px); font-weight:800; letter-spacing:-.03em; margin-bottom:12px; }
.sec-head p{ color:var(--text-2); font-size:15.5px; max-width:560px; margin:0 auto; line-height:1.7; }

/* Bento 场景 */
.bento{ display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
.bento-card{
  background:var(--surface); border:1px solid var(--border); border-radius:22px;
  padding:30px 26px; transition:.3s cubic-bezier(.22,1,.36,1);
  position:relative; overflow:hidden; backdrop-filter:blur(16px);
}
.bento-card:nth-child(1){ grid-column:span 2; }
.bento-card:nth-child(4){ grid-column:span 2; }
.bento-card::after{
  content:""; position:absolute; width:180px; height:180px; border-radius:50%;
  background:radial-gradient(circle,var(--glow),transparent 70%);
  top:-70px; right:-70px; opacity:0; transition:.4s;
}
.bento-card:hover{ border-color:var(--border-strong); transform:translateY(-4px); box-shadow:var(--shadow-md); }
.bento-card:hover::after{ opacity:1; }
.bento-icon{
  width:46px; height:46px; border-radius:14px; background:var(--ink); color:var(--on-ink);
  display:flex; align-items:center; justify-content:center; margin-bottom:18px;
}
.bento-icon svg{ width:21px; height:21px; }
.bento-card h4{ font-size:17px; font-weight:700; margin-bottom:8px; letter-spacing:-.01em; }
.bento-card p{ font-size:14px; color:var(--text-2); line-height:1.65; }
.scene-tags{ display:flex; gap:7px; flex-wrap:wrap; margin-top:16px; }
.scene-tag{
  background:var(--glow); color:var(--text-2); font-size:11.5px; font-weight:600;
  padding:4px 11px; border-radius:999px; border:1px solid var(--border);
}

/* 效果展示 */
.showcase-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.showcase-card{
  background:var(--surface-solid); border:1px solid var(--border); border-radius:22px;
  overflow:hidden; transition:.3s cubic-bezier(.22,1,.36,1);
}
.showcase-card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-md); border-color:var(--border-strong); }
.showcase-img-wrap{
  position:relative; height:210px;
  background-image:linear-gradient(45deg,var(--checker-a) 25%,transparent 25%),linear-gradient(-45deg,var(--checker-a) 25%,transparent 25%),linear-gradient(45deg,transparent 75%,var(--checker-a) 75%),linear-gradient(-45deg,transparent 75%,var(--checker-a) 75%);
  background-size:16px 16px; background-color:var(--checker-b);
  display:flex; align-items:center; justify-content:center;
}
.showcase-img-wrap > svg{ width:58px; height:58px; stroke:var(--text-3); opacity:.8; }
.showcase-badge{
  position:absolute; top:14px; right:14px;
  background:var(--ink); color:var(--on-ink);
  font-size:11px; font-weight:700; padding:5px 12px; border-radius:999px; letter-spacing:.04em;
}
.showcase-info{ padding:18px 22px; }
.showcase-info h4{ font-size:15px; font-weight:700; margin-bottom:4px; }
.showcase-info p{ font-size:13px; color:var(--text-2); }

/* 步骤 */
.steps{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; counter-reset:step; }
.step-card{
  background:var(--surface); border:1px solid var(--border); border-radius:22px;
  padding:34px 28px; position:relative; overflow:hidden; transition:.3s;
}
.step-card:hover{ border-color:var(--border-strong); transform:translateY(-4px); box-shadow:var(--shadow-md); }
.step-num{
  font-size:64px; font-weight:900; letter-spacing:-.05em; line-height:1;
  color:transparent; -webkit-text-stroke:1.5px var(--border-strong);
  margin-bottom:18px;
}
.step-card h4{ font-size:17px; font-weight:700; margin-bottom:8px; }
.step-card p{ font-size:14px; color:var(--text-2); line-height:1.65; }
.step-line{
  position:absolute; top:0; left:0; right:0; height:3px;
  background:var(--ink); transform:scaleX(0); transform-origin:left; transition:transform .5s cubic-bezier(.22,1,.36,1);
}
.step-card:hover .step-line{ transform:scaleX(1); }

/* 评价 */
.review-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.review-card{
  background:var(--surface); border:1px solid var(--border); border-radius:22px;
  padding:28px; backdrop-filter:blur(16px); transition:.3s;
  display:flex; flex-direction:column;
}
.review-card:hover{ border-color:var(--border-strong); transform:translateY(-4px); box-shadow:var(--shadow-md); }
.review-stars{ display:flex; gap:3px; margin-bottom:16px; }
.review-stars svg{ width:15px; height:15px; fill:var(--text-1); }
.review-text{ font-size:14.5px; line-height:1.75; color:var(--text-1); flex:1; }
.review-author{ display:flex; align-items:center; gap:12px; margin-top:22px; }
.review-avatar{
  width:42px; height:42px; border-radius:50%; background:var(--ink); color:var(--on-ink);
  display:flex; align-items:center; justify-content:center;
  font-size:15px; font-weight:700;
}
.review-name{ font-size:14px; font-weight:700; }
.review-role{ font-size:12.5px; color:var(--text-3); }

/* FAQ */
.faq-list{ max-width:780px; margin:0 auto; display:flex; flex-direction:column; gap:10px; }
.faq-item{
  background:var(--surface); border:1px solid var(--border); border-radius:16px;
  overflow:hidden; transition:.25s;
}
.faq-item:hover{ border-color:var(--border-strong); }
.faq-item.active{ border-color:var(--text-1); }
.faq-q{
  width:100%; display:flex; justify-content:space-between; align-items:center; gap:16px;
  padding:19px 24px; cursor:pointer; background:none; border:none;
  font-size:15px; font-weight:600; color:var(--text-1); text-align:left;
}
.faq-icon{
  width:30px; height:30px; border-radius:9px; border:1px solid var(--border);
  display:flex; align-items:center; justify-content:center; flex-shrink:0; transition:.3s;
}
.faq-icon svg{ width:14px; height:14px; stroke:var(--text-2); transition:transform .3s; }
.faq-item.active .faq-icon svg{ transform:rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .35s cubic-bezier(.22,1,.36,1); }
.faq-a-inner{ padding:0 24px 20px; font-size:14px; color:var(--text-2); line-height:1.75; }

/* 大 CTA */
.big-cta{
  margin-top:96px; background:var(--ink); color:var(--on-ink);
  border-radius:30px; padding:clamp(56px,8vw,90px) 32px; text-align:center;
  position:relative; overflow:hidden;
}
.big-cta::before{
  content:""; position:absolute; inset:0;
  background:radial-gradient(700px 260px at 50% -30%,rgba(255,255,255,.15),transparent);
}
.big-cta h2{ font-size:clamp(26px,4vw,40px); font-weight:800; letter-spacing:-.03em; margin-bottom:14px; position:relative; }
.big-cta p{ font-size:15.5px; opacity:.6; margin-bottom:34px; max-width:480px; margin-left:auto; margin-right:auto; position:relative; }
.big-cta .btn-light{
  display:inline-flex; align-items:center; gap:8px;
  background:var(--on-ink); color:var(--ink);
  padding:15px 38px; border-radius:999px; font-size:15.5px; font-weight:700;
  border:none; cursor:pointer; transition:.25s; text-decoration:none; position:relative;
}
.big-cta .btn-light:hover{ transform:translateY(-2px); box-shadow:0 16px 40px rgba(0,0,0,.35); }
.big-cta .btn-line{
  display:inline-flex; align-items:center;
  background:transparent; color:var(--on-ink);
  padding:14px 36px; border-radius:999px; font-size:15.5px; font-weight:600;
  border:1.5px solid rgba(127,127,127,.45); text-decoration:none; transition:.25s;
  margin-left:12px; position:relative;
}
.big-cta .btn-line:hover{ border-color:var(--on-ink); background:rgba(127,127,127,.12); }

/* ============ Footer ============ */
footer{
  margin-top:110px; border-top:1px solid var(--border);
  background:var(--bg-elev); padding:70px 0 32px;
}
.footer-top{ display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:44px; margin-bottom:54px; }
.footer-brand p{ font-size:14px; color:var(--text-2); line-height:1.8; margin-top:16px; max-width:340px; }
.footer-title{ font-size:13px; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--text-3); margin-bottom:18px; }
.footer-links{ list-style:none; display:flex; flex-direction:column; gap:11px; }
.footer-links a{ font-size:14px; color:var(--text-2); text-decoration:none; transition:.2s; }
.footer-links a:hover{ color:var(--text-1); }
.footer-bottom{
  border-top:1px solid var(--border); padding-top:26px;
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px;
  font-size:13px; color:var(--text-3);
}

/* 返回顶部 */
.back-top{
  position:fixed; right:26px; bottom:26px; width:46px; height:46px;
  background:var(--ink); color:var(--on-ink); border:none; border-radius:14px;
  display:flex; align-items:center; justify-content:center; cursor:pointer;
  opacity:0; visibility:hidden; transform:translateY(12px);
  transition:opacity .3s,transform .3s,visibility .3s; z-index:900; box-shadow:var(--shadow-md);
}
.back-top svg{ width:18px; height:18px; }
.back-top.show{ opacity:1; visibility:visible; transform:none; }
.back-top:hover{ transform:translateY(-3px); }

/* 滚动显现 */
.reveal{ opacity:0; transform:translateY(28px); transition:opacity .8s cubic-bezier(.22,1,.36,1),transform .8s cubic-bezier(.22,1,.36,1); }
.reveal.in{ opacity:1; transform:none; }
.reveal-d1{ transition-delay:.08s; } .reveal-d2{ transition-delay:.16s; } .reveal-d3{ transition-delay:.24s; }

/* ============ 响应式 ============ */
@media (max-width: 960px){
  .bento{ grid-template-columns:1fr 1fr; }
  .bento-card:nth-child(1),.bento-card:nth-child(4){ grid-column:span 2; }
  .showcase-grid,.steps,.review-grid{ grid-template-columns:1fr; }
  .stats-banner{ grid-template-columns:1fr 1fr; }
  .stat-item:nth-child(3)::before{ display:none; }
  .footer-top{ grid-template-columns:1fr 1fr; }
}
@media (max-width: 768px){
  .nav-wrap{ padding-top:10px; }
  .nav{ width:calc(100% - 20px); padding:0 10px 0 16px; }
  .nav-links{ display:none; }
  .nav-actions .btn-ghost-ink{ display:none; }
  .hamburger{ display:flex; }
  .hero{ padding-top:64px; }
  .preview-wrap{ grid-template-columns:1fr; }
  .bento{ grid-template-columns:1fr; }
  .bento-card:nth-child(1),.bento-card:nth-child(4){ grid-column:span 1; }
  .action-bar .btn{ width:100%; justify-content:center; }
  .big-cta .btn-line{ margin-left:0; margin-top:12px; }
  .footer-top{ grid-template-columns:1fr; gap:34px; }
  .footer-bottom{ justify-content:center; text-align:center; }
}
@media (max-width: 480px){
  .container{ padding:0 18px; }
  .stats-banner{ grid-template-columns:1fr 1fr; }
  .btn{ width:100%; justify-content:center; }
}