/* ==========================================================================
   scene6.cn 全站统一样式（深色创意/工具调性 · 蓝紫科技渐变）
   适配 index / guide / features / faq / reviews
   ========================================================================== */

:root {
  --bg:        #0b0d1a;
  --bg2:       #11142a;
  --bg3:       #161a36;
  --panel:     #1b2042;
  --panel2:    #232a52;
  --line:      #303a6a;
  --ink:       #ecf0fb;
  --sub:       #9aa3c5;
  --dim:       #6a7299;
  --indigo:    #6366f1;
  --violet:    #8b5cf6;
  --cyan:      #2dd4bf;
  --sky:       #38bdf8;
  --amber:     #fbbf24;
  --green:     #34d399;
  --pink:      #f472b6;
  --red:       #f87171;
  --grad:      linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #38bdf8 100%);
  --grad-soft: linear-gradient(135deg, rgba(99,102,241,.20) 0%, rgba(139,92,246,.18) 50%, rgba(56,189,248,.18) 100%);
  --shadow:    0 24px 60px -20px rgba(8,10,30,.65);
  --radius:    18px;
  --radius-s:  12px;
  --maxw:      1180px;
  --t:         0.28s cubic-bezier(.2,.7,.2,1);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Hiragino Sans GB", "Segoe UI", Arial, sans-serif;
  font-size: 16px; line-height: 1.75;
  color: var(--ink);
  background: radial-gradient(1200px 700px at 80% -100px, rgba(139,92,246,.18), transparent 60%),
              radial-gradient(900px 500px at -10% 10%, rgba(56,189,248,.14), transparent 60%),
              var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--t); }
a:hover { color: var(--cyan); }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ============================== 顶栏导航 ============================== */
.site-header {
  position: sticky; top: 0; z-index: 80;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  background: rgba(11,13,26,.78);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .5px; }
.brand img { width: 36px; height: 36px; border-radius: 9px; box-shadow: 0 8px 22px -8px rgba(99,102,241,.7); }
.brand-name { font-size: 22px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.brand-name small { display: block; font-size: 10px; color: var(--dim); letter-spacing: 4px; -webkit-text-fill-color: var(--dim); }
.main-nav { display: flex; gap: 8px; align-items: center; }
.main-nav a {
  padding: 10px 16px; font-size: 15px; color: var(--sub); border-radius: 10px;
}
.main-nav a:hover, .main-nav a.active { color: var(--ink); background: rgba(255,255,255,.06); }
.main-nav a.nav-dl {
  background: var(--grad); color: #fff; font-weight: 700; padding: 10px 20px; border-radius: 12px;
  box-shadow: 0 12px 28px -10px rgba(99,102,241,.65);
}
.main-nav a.nav-dl:hover { transform: translateY(-1px); color: #fff; }
.nav-toggle { display: none; background: transparent; border: 0; color: var(--ink); font-size: 26px; padding: 6px 10px; }

/* ============================== Hero ============================== */
.hero { position: relative; padding: 70px 0 60px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto -10%; height: 520px;
  background: radial-gradient(600px 280px at 30% 40%, rgba(99,102,241,.28), transparent 60%),
              radial-gradient(500px 240px at 80% 60%, rgba(45,212,191,.18), transparent 60%);
  filter: blur(20px); pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.hero h1 {
  font-size: clamp(34px, 4.4vw, 58px); line-height: 1.12; margin: 16px 0 18px; letter-spacing: -.5px;
  font-weight: 800;
}
.hero h1 .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lede { font-size: 18px; color: var(--sub); max-width: 560px; }
.hero .cta-row { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 10px; padding: 14px 24px; border-radius: 14px;
  font-weight: 700; font-size: 16px; transition: transform var(--t), box-shadow var(--t), background var(--t);
  border: 1px solid transparent; cursor: pointer; line-height: 1;
}
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 18px 36px -12px rgba(99,102,241,.7); }
.btn-primary:hover { transform: translateY(-2px); color: #fff; }
.btn-ghost { background: rgba(255,255,255,.05); color: var(--ink); border-color: rgba(255,255,255,.12); }
.btn-ghost:hover { background: rgba(255,255,255,.09); }
.badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px;
  background: var(--grad-soft); border: 1px solid rgba(99,102,241,.45); color: #d8dcff; font-size: 13px; }
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 3px rgba(45,212,191,.25); }

.hero-meta { display: flex; gap: 28px; margin-top: 36px; flex-wrap: wrap; }
.hero-meta .item .n { font-size: 26px; font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-meta .item .l { font-size: 13px; color: var(--dim); }

.hero-mock { position: relative; }
.phone-frame {
  position: relative; width: 320px; margin: 0 auto;
  background: linear-gradient(160deg, #2a2f55 0%, #1a1f40 100%);
  border-radius: 40px; padding: 16px;
  box-shadow: var(--shadow), inset 0 0 0 1px rgba(255,255,255,.05);
  transform: rotate(-3deg);
}
.phone-frame::before {
  content: ""; position: absolute; top: 20px; left: 50%; transform: translateX(-50%);
  width: 120px; height: 22px; background: #0a0c1c; border-radius: 999px; z-index: 2;
}
.phone-frame img { border-radius: 26px; }
.floating-card {
  position: absolute; background: var(--panel); border: 1px solid rgba(255,255,255,.08); border-radius: 16px;
  padding: 14px 18px; box-shadow: var(--shadow);
  display: flex; align-items: center; gap: 10px; font-size: 14px;
}
.fc-1 { top: 24px; right: 4%; background: linear-gradient(160deg, rgba(99,102,241,.25), rgba(45,212,191,.18)); border-color: rgba(45,212,191,.3); }
.fc-2 { bottom: 60px; left: 0; }
.fc-3 { bottom: 8px; right: 16%; background: linear-gradient(160deg, rgba(251,191,36,.18), rgba(244,114,182,.18)); border-color: rgba(251,191,36,.35); }
.floating-card .ico { width: 30px; height: 30px; border-radius: 8px; background: var(--grad); display: grid; place-items: center; font-weight: 800; }

/* ============================== Sections ============================== */
section.block { padding: 80px 0; position: relative; }
.section-title { text-align: center; margin-bottom: 50px; }
.section-title .eyebrow { display: inline-block; color: var(--cyan); font-size: 13px; letter-spacing: 3px; font-weight: 700; text-transform: uppercase; }
.section-title h2 { font-size: clamp(26px, 3.2vw, 40px); margin: 12px 0 10px; font-weight: 800; letter-spacing: -.3px; }
.section-title p { color: var(--sub); max-width: 700px; margin: 0 auto; font-size: 16px; }

.strip {
  background: var(--bg2); border-top: 1px solid rgba(255,255,255,.06); border-bottom: 1px solid rgba(255,255,255,.06);
}
.strip-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; padding: 28px 0; }
.strip-row .item { display: flex; align-items: center; gap: 14px; }
.strip-row .item .v { font-size: 26px; font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.strip-row .item .l { font-size: 13px; color: var(--sub); line-height: 1.4; }

/* 卡片通用 */
.card {
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.01));
  border: 1px solid rgba(255,255,255,.07);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform var(--t), border-color var(--t), background var(--t);
}
.card:hover { transform: translateY(-4px); border-color: rgba(99,102,241,.5); }
.card .ico {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: var(--grad-soft); border: 1px solid rgba(99,102,241,.4);
  color: #d8dcff; margin-bottom: 18px;
}
.card .ico svg { width: 26px; height: 26px; }
.card h3 { margin: 0 0 10px; font-size: 19px; }
.card p { margin: 0; color: var(--sub); font-size: 15px; line-height: 1.7; }
.card a.more { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; color: var(--cyan); font-size: 14px; font-weight: 600; }

/* 功能六宫格 */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-grid .card .ico { background: var(--grad); border: 0; color: #fff; }

/* 截图展示墙 */
.shot-tabs { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 28px; }
.shot-tabs .t {
  padding: 8px 16px; border-radius: 999px; background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08); color: var(--sub); font-size: 14px; cursor: pointer;
  transition: all var(--t);
}
.shot-tabs .t.active { background: var(--grad); color: #fff; border-color: transparent; }
.shot-wall { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: start; }
.shot { position: relative; border-radius: 22px; overflow: hidden; background: var(--bg3); border: 1px solid rgba(255,255,255,.07); }
.shot img { width: 100%; height: auto; display: block; transition: transform .8s ease; }
.shot:hover img { transform: scale(1.04); }
.shot .cap { position: absolute; left: 16px; bottom: 14px; right: 16px;
  background: rgba(8,10,28,.7); backdrop-filter: blur(8px); border-radius: 12px; padding: 10px 14px;
  font-size: 13px; color: var(--ink); display: flex; align-items: center; justify-content: space-between; }
.shot .cap span { color: var(--sub); }

/* 深度内容入口 */
.deep-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.deep-card { padding: 30px 26px; }
.deep-card .tag { display: inline-block; font-size: 12px; color: var(--cyan); letter-spacing: 2px; margin-bottom: 14px; font-weight: 700; }
.deep-card h3 { font-size: 20px; margin: 0 0 10px; }
.deep-card p { color: var(--sub); font-size: 14px; line-height: 1.7; }
.deep-card .arrow { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; color: var(--cyan); font-size: 14px; font-weight: 600; }

/* 用户评价 */
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.review { padding: 28px; }
.review .head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.review .av { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; color: #fff; }
.review .name { font-weight: 700; }
.review .role { color: var(--dim); font-size: 13px; }
.review .stars { color: var(--amber); letter-spacing: 2px; margin-bottom: 10px; font-size: 14px; }
.review p { color: var(--sub); font-size: 15px; line-height: 1.85; margin: 0; }

/* FAQ preview */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.faq-item { padding: 0; background: var(--panel); border: 1px solid rgba(255,255,255,.07); border-radius: 14px; overflow: hidden; }
.faq-item summary { list-style: none; cursor: pointer; padding: 18px 22px; font-weight: 700; font-size: 15px; display: flex; align-items: center; justify-content: space-between; gap: 16px; color: var(--ink); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .toggle { width: 22px; height: 22px; flex: 0 0 22px; position: relative; }
.faq-item summary .toggle::before, .faq-item summary .toggle::after { content: ""; position: absolute; left: 4px; right: 4px; top: 10px; height: 2px; background: var(--cyan); transition: transform var(--t); }
.faq-item summary .toggle::after { transform: rotate(90deg); }
.faq-item[open] summary .toggle::after { transform: rotate(0); }
.faq-item .body { padding: 0 22px 20px; color: var(--sub); font-size: 14px; line-height: 1.8; }

/* 适合谁 */
.who-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.who { padding: 24px; }
.who h4 { margin: 14px 0 6px; font-size: 16px; }
.who p { color: var(--sub); font-size: 14px; line-height: 1.7; margin: 0; }

/* 下载 CTA banner */
.cta-banner {
  margin: 60px auto; padding: 50px 40px; text-align: center; border-radius: 28px;
  background: var(--grad);
  position: relative; overflow: hidden; max-width: 1080px;
  box-shadow: 0 40px 80px -20px rgba(99,102,241,.55);
}
.cta-banner::before, .cta-banner::after {
  content: ""; position: absolute; width: 360px; height: 360px; border-radius: 50%;
  background: rgba(255,255,255,.10); filter: blur(40px);
}
.cta-banner::before { top: -120px; left: -80px; }
.cta-banner::after { bottom: -160px; right: -100px; }
.cta-banner h2 { position: relative; font-size: clamp(24px, 3vw, 36px); margin: 0 0 10px; color: #fff; }
.cta-banner p { position: relative; color: rgba(255,255,255,.86); margin: 0 0 26px; }
.cta-banner .btn-primary { background: #0b0d1a; color: #fff; box-shadow: 0 16px 40px -10px rgba(0,0,0,.55); }

/* ============================== Footer ============================== */
.site-footer { background: #08091a; border-top: 1px solid rgba(255,255,255,.06); padding: 60px 0 0; margin-top: 80px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.foot-grid h4 { color: var(--ink); font-size: 15px; margin: 0 0 16px; letter-spacing: 1px; }
.foot-grid ul { list-style: none; padding: 0; margin: 0; }
.foot-grid li { margin-bottom: 10px; }
.foot-grid a { color: var(--sub); font-size: 14px; }
.foot-grid a:hover { color: var(--cyan); }
.foot-brand p { color: var(--sub); font-size: 14px; line-height: 1.8; margin: 12px 0 0; }
.foot-bottom {
  border-top: 1px solid rgba(255,255,255,.06); padding: 22px 0; display: flex; align-items: center; justify-content: space-between;
  color: var(--dim); font-size: 13px; flex-wrap: wrap; gap: 8px;
}
.foot-bottom a { color: var(--sub); }
.foot-disclaimer {
  border-top: 1px solid rgba(255,255,255,.06); padding: 18px 0; color: var(--dim); font-size: 12px; line-height: 1.85; text-align: center;
}

/* ============================== 内页通用 ============================== */
.crumb { padding: 22px 0 0; color: var(--dim); font-size: 14px; }
.crumb a { color: var(--sub); }
.crumb span { color: var(--dim); margin: 0 6px; }

.page-hero { padding: 36px 0 50px; position: relative; }
.page-hero h1 { font-size: clamp(28px, 3.8vw, 46px); margin: 14px 0 14px; font-weight: 800; line-height: 1.2; letter-spacing: -.3px; }
.page-hero p.lede { color: var(--sub); font-size: 17px; max-width: 820px; }
.page-hero .meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.page-hero .meta .pill { padding: 6px 12px; background: rgba(99,102,241,.15); border: 1px solid rgba(99,102,241,.3); color: #d8dcff; border-radius: 999px; font-size: 12px; }

.prose { color: var(--ink); }
.prose h2 { font-size: 24px; margin: 50px 0 16px; font-weight: 800; letter-spacing: -.2px; }
.prose h3 { font-size: 19px; margin: 30px 0 10px; color: var(--cyan); }
.prose p { color: var(--sub); font-size: 16px; line-height: 1.9; }
.prose ul, .prose ol { color: var(--sub); line-height: 1.9; padding-left: 22px; }
.prose li { margin: 6px 0; }
.prose strong { color: var(--ink); }
.prose a { color: var(--cyan); border-bottom: 1px dashed rgba(45,212,191,.4); }
.prose a:hover { color: #fff; }

.callout {
  margin: 30px 0; padding: 22px 26px; border-radius: 16px;
  background: linear-gradient(135deg, rgba(99,102,241,.16), rgba(45,212,191,.12));
  border: 1px solid rgba(99,102,241,.3);
  color: #e5e9ff;
}
.callout strong { color: #fff; }

/* 步骤 */
.steps { counter-reset: step; display: grid; gap: 22px; margin: 30px 0; }
.step {
  position: relative; display: grid; grid-template-columns: 60px 1fr 220px; gap: 22px; align-items: center;
  background: var(--panel); border: 1px solid rgba(255,255,255,.07); border-radius: 18px; padding: 22px;
}
.step .num { counter-increment: step; width: 52px; height: 52px; border-radius: 16px; background: var(--grad); color: #fff; display: grid; place-items: center; font-size: 24px; font-weight: 800; }
.step .num::before { content: counter(step); }
.step h3 { margin: 0 0 6px; font-size: 18px; }
.step p { margin: 0; color: var(--sub); font-size: 14.5px; line-height: 1.8; }
.step .visual { border-radius: 14px; overflow: hidden; border: 1px solid rgba(255,255,255,.08); background: var(--bg3); }
.step .visual img { width: 100%; height: auto; }
.step .visual .alt { aspect-ratio: 9/16; display: grid; place-items: center; color: var(--sub); font-size: 13px; padding: 20px; text-align: center; }

/* 表格 */
.table-wrap { overflow-x: auto; border: 1px solid rgba(255,255,255,.07); border-radius: 16px; background: var(--panel); }
table.compare { width: 100%; border-collapse: collapse; font-size: 14px; }
table.compare th, table.compare td { padding: 14px 16px; text-align: left; border-bottom: 1px solid rgba(255,255,255,.06); color: var(--sub); }
table.compare th { background: rgba(99,102,241,.12); color: #d8dcff; font-weight: 700; }
table.compare tr:last-child td { border-bottom: 0; }
table.compare td strong { color: var(--ink); }

/* 评价长页 */
.review-detail { padding: 28px 0; border-bottom: 1px dashed rgba(255,255,255,.08); }
.review-detail:last-child { border-bottom: 0; }
.rating-bars { display: grid; gap: 10px; margin: 20px 0; }
.bar-row { display: grid; grid-template-columns: 60px 1fr 60px; align-items: center; gap: 14px; font-size: 13px; color: var(--sub); }
.bar-row .bar { height: 10px; background: rgba(255,255,255,.07); border-radius: 999px; overflow: hidden; }
.bar-row .bar > div { height: 100%; background: var(--grad); border-radius: 999px; }

/* 相关推荐 */
.related { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 30px; }
.related a { padding: 22px; display: block; }
.related a h4 { margin: 0 0 6px; font-size: 16px; }
.related a p { margin: 0; color: var(--sub); font-size: 13px; line-height: 1.7; }

/* ============================== 响应式 ============================== */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-mock { margin-top: 30px; }
  .feature-grid, .shot-wall, .review-grid, .who-grid, .deep-grid, .related { grid-template-columns: repeat(2, 1fr); }
  .faq-list { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .step { grid-template-columns: 60px 1fr; }
  .step .visual { grid-column: 1 / -1; max-width: 240px; }
}
@media (max-width: 720px) {
  .container { padding: 0 18px; }
  .nav-toggle { display: block; }
  .main-nav { display: none; position: absolute; left: 0; right: 0; top: 70px; flex-direction: column;
    background: var(--bg2); border-bottom: 1px solid rgba(255,255,255,.07); padding: 14px 18px; gap: 4px; }
  .main-nav.open { display: flex; }
  .main-nav a { width: 100%; }
  .feature-grid, .shot-wall, .review-grid, .who-grid, .deep-grid, .related { grid-template-columns: 1fr; }
  .strip-row { grid-template-columns: 1fr 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
  .step { grid-template-columns: 1fr; }
  .cta-banner { padding: 40px 22px; }
  .hero { padding: 40px 0 30px; }
  .section-title { margin-bottom: 30px; }
  section.block { padding: 50px 0; }
  .phone-frame { width: 260px; padding: 12px; }
  .floating-card { font-size: 12px; padding: 10px 14px; }
}

/* 入场 */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }