/* ==========================================================================
   易歪歪 官网模板 - 全局样式
   Author: EYY Template
   Description: 客服聊天助手 / 快捷回复软件官网设计系统
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 变量与基础
   -------------------------------------------------------------------------- */
:root {
  --brand: #1f6feb;
  --brand-2: #3b8bff;
  --brand-deep: #0b1b3a;
  --brand-darker: #071127;
  --accent: #12b981;
  --accent-2: #ff8a3d;
  --warn: #f5a524;

  --text: #0f172a;
  --text-soft: #46536b;
  --text-muted: #7a879e;

  --bg: #ffffff;
  --bg-soft: #f5f8ff;
  --bg-mute: #eef3ff;
  --line: #e3eaf6;
  --line-strong: #d3ddf0;

  --grad-brand: linear-gradient(135deg, #1f6feb 0%, #4aa8ff 55%, #22d3ee 100%);
  --grad-soft: linear-gradient(135deg, #eaf2ff 0%, #f6fbff 100%);
  --grad-dark: linear-gradient(150deg, #0b1b3a 0%, #123069 55%, #0a1a38 100%);

  --shadow-xs: 0 1px 2px rgba(15, 34, 71, .06);
  --shadow-sm: 0 6px 18px rgba(15, 34, 71, .07);
  --shadow-md: 0 14px 38px rgba(15, 34, 71, .10);
  --shadow-lg: 0 28px 70px rgba(12, 32, 74, .16);
  --shadow-brand: 0 16px 36px rgba(31, 111, 235, .30);

  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius: 18px;
  --radius-lg: 26px;
  --radius-pill: 999px;

  --maxw: 1180px;
  --nav-h: 74px;

  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; border: 0; }
a { color: var(--brand); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--brand-2); }
ul, ol { margin: 0; padding: 0; }

h1, h2, h3, h4, h5 {
  margin: 0 0 .5em;
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--text);
}
h1 { font-size: clamp(2rem, 4.2vw, 3.35rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.15rem, 1.8vw, 1.42rem); }
h4 { font-size: 1.1rem; }
p { margin: 0 0 1.1em; color: var(--text-soft); }
strong { color: var(--text); font-weight: 700; }

::selection { background: rgba(31, 111, 235, .18); }

/* --------------------------------------------------------------------------
   2. 布局工具
   -------------------------------------------------------------------------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.container-wide { max-width: 1340px; }

.section { padding: clamp(58px, 7vw, 104px) 0; position: relative; }
.section-tight { padding: clamp(40px, 5vw, 66px) 0; }
.section-soft { background: var(--bg-soft); }
.section-mute { background: var(--bg-mute); }
.section-dark { background: var(--grad-dark); color: #dce8ff; }
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 { color: #fff; }
.section-dark p { color: #a9c1e8; }

.section-head { max-width: 780px; margin: 0 auto clamp(34px, 4vw, 56px); text-align: center; }
.section-head.left { margin-left: 0; text-align: left; }
.section-head p { margin-bottom: 0; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .82rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--brand);
  background: rgba(31, 111, 235, .08);
  border: 1px solid rgba(31, 111, 235, .18);
  padding: 6px 14px; border-radius: var(--radius-pill);
  margin-bottom: 16px;
}
.section-dark .eyebrow { color: #8fc0ff; background: rgba(143, 192, 255, .10); border-color: rgba(143, 192, 255, .24); }

.text-grad {
  background: var(--grad-brand);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

.grid { display: grid; gap: 22px; }
.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)); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(268px, 1fr)); }
.grid-auto-sm { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }

.center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: 14px; }
.mt-lg { margin-top: 42px; }

/* --------------------------------------------------------------------------
   3. 按钮
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: inherit; font-size: 1rem; font-weight: 700;
  padding: 14px 28px; border-radius: var(--radius-pill);
  border: 1px solid transparent; cursor: pointer;
  transition: transform .18s ease, box-shadow .22s ease, background .22s ease, color .2s ease;
  white-space: nowrap; line-height: 1.2;
}
.btn:active { transform: translateY(1px); }

.btn-primary { background: var(--grad-brand); color: #fff; box-shadow: var(--shadow-brand); }
.btn-primary:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 20px 42px rgba(31, 111, 235, .38); }

.btn-dark { background: var(--brand-deep); color: #fff; box-shadow: var(--shadow-sm); }
.btn-dark:hover { color: #fff; background: #12294f; transform: translateY(-2px); }

.btn-ghost { background: #fff; color: var(--text); border-color: var(--line-strong); box-shadow: var(--shadow-xs); }
.btn-ghost:hover { color: var(--brand); border-color: var(--brand); transform: translateY(-2px); }

.btn-light { background: rgba(255, 255, 255, .12); color: #fff; border-color: rgba(255, 255, 255, .30); backdrop-filter: blur(6px); }
.btn-light:hover { background: #fff; color: var(--brand-deep); }

.btn-sm { padding: 10px 20px; font-size: .92rem; }
.btn-lg { padding: 17px 38px; font-size: 1.08rem; }
.btn-block { width: 100%; }

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }
.btn-row.center { justify-content: center; }

/* --------------------------------------------------------------------------
   4. 导航
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, box-shadow .25s ease, background .25s ease;
}
.site-header.is-scrolled { border-bottom-color: var(--line); box-shadow: 0 8px 26px rgba(15, 34, 71, .06); }

.nav {
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 1.22rem; color: var(--text); letter-spacing: -.01em; }
.brand:hover { color: var(--text); }
.brand img { width: 38px; height: 38px; }
.brand .brand-sub { display: block; font-size: .68rem; font-weight: 600; color: var(--text-muted); letter-spacing: .16em; margin-top: -3px; }

.nav-menu { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav-menu a {
  display: block; padding: 10px 15px; border-radius: var(--radius-pill);
  font-size: .97rem; font-weight: 600; color: var(--text-soft);
}
.nav-menu a:hover { color: var(--brand); background: rgba(31, 111, 235, .07); }
.nav-menu a.active { color: var(--brand); background: rgba(31, 111, 235, .10); }

.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-toggle {
  display: none; width: 44px; height: 44px; border-radius: 12px;
  border: 1px solid var(--line-strong); background: #fff; cursor: pointer;
  align-items: center; justify-content: center; flex-direction: column; gap: 5px;
}
.nav-toggle span { width: 20px; height: 2px; background: var(--text); border-radius: 2px; transition: .25s ease; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   5. Hero
   -------------------------------------------------------------------------- */
.hero { position: relative; overflow: hidden; padding: clamp(48px, 6vw, 84px) 0 clamp(56px, 7vw, 96px); background: var(--grad-soft); }
.hero::before {
  content: ""; position: absolute; inset: -30% -10% auto -20%; height: 640px;
  background: radial-gradient(46% 60% at 22% 20%, rgba(58, 141, 255, .26) 0%, rgba(58, 141, 255, 0) 70%),
              radial-gradient(40% 55% at 82% 5%, rgba(34, 211, 238, .22) 0%, rgba(34, 211, 238, 0) 70%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 2; }
.hero-grid { display: grid; grid-template-columns: 1.06fr .94fr; gap: clamp(28px, 4vw, 60px); align-items: center; }
.hero-copy h1 { margin-bottom: 18px; }
.hero-lead { font-size: clamp(1.02rem, 1.5vw, 1.2rem); color: var(--text-soft); max-width: 560px; margin-bottom: 26px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 9px; margin: 22px 0 0; }
.hero-tag {
  font-size: .86rem; font-weight: 600; color: var(--brand-deep);
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-pill);
  padding: 7px 14px; box-shadow: var(--shadow-xs);
}
.hero-tag b { color: var(--brand); }

.hero-note { display: flex; align-items: center; gap: 9px; font-size: .9rem; color: var(--text-muted); margin-top: 18px; }
.dot-live { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(18, 185, 129, .18); }

.hero-visual { position: relative; }
.hero-shot {
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-lg); border: 1px solid rgba(255, 255, 255, .8);
  background: #fff;
}
.hero-shot img { width: 100%; }
.hero-float {
  position: absolute; background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow-md); padding: 13px 17px; border: 1px solid var(--line);
  display: flex; align-items: center; gap: 11px; font-size: .86rem; font-weight: 600;
}
.hero-float img { width: 34px; height: 34px; border-radius: 10px; }
.hero-float small { display: block; color: var(--text-muted); font-weight: 500; font-size: .76rem; }
.hero-float.f1 { left: -18px; top: 16%; animation: floaty 5.5s ease-in-out infinite; }
.hero-float.f2 { right: -14px; bottom: 12%; animation: floaty 6.5s ease-in-out infinite .8s; }
.hero-mascot {
  position: absolute; width: 108px; left: -34px; bottom: -28px;
  filter: drop-shadow(0 14px 24px rgba(12, 32, 74, .18));
  animation: floaty 7s ease-in-out infinite;
}
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* 统计条 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 34px; }
.stat {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 20px; box-shadow: var(--shadow-xs);
}
.stat .num { font-size: clamp(1.5rem, 2.4vw, 2rem); font-weight: 800; letter-spacing: -.03em; line-height: 1.1; }
.stat .lbl { font-size: .84rem; color: var(--text-muted); font-weight: 600; margin-top: 6px; }

/* --------------------------------------------------------------------------
   6. 平台适配条
   -------------------------------------------------------------------------- */
.platforms { padding: 26px 0; background: #fff; border-bottom: 1px solid var(--line); }
.platforms-inner { display: flex; align-items: center; gap: clamp(18px, 3vw, 42px); flex-wrap: wrap; justify-content: center; }
.platforms-title { font-size: .88rem; color: var(--text-muted); font-weight: 700; letter-spacing: .04em; }
.platform-chip {
  font-size: .92rem; font-weight: 600; color: var(--text-soft);
  padding: 8px 16px; border: 1px solid var(--line); border-radius: var(--radius-pill);
  background: var(--bg-soft); white-space: nowrap;
}

/* --------------------------------------------------------------------------
   7. 卡片
   -------------------------------------------------------------------------- */
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow-xs);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  height: 100%;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: #cfe0ff; }
.card-soft { background: var(--bg-soft); border-color: #dfe9fb; }
.card-dark { background: rgba(255, 255, 255, .05); border-color: rgba(255, 255, 255, .14); }
.card-dark:hover { border-color: rgba(143, 192, 255, .4); }
.card h3 { margin-bottom: .45em; }
.card p:last-child { margin-bottom: 0; }

.icon-badge {
  width: 54px; height: 54px; border-radius: 15px;
  display: grid; place-items: center;
  background: var(--grad-soft); border: 1px solid #dfe9fb;
  font-size: 1.55rem; margin-bottom: 16px;
}
.icon-badge img { width: 34px; height: 34px; }
.icon-badge.solid { background: var(--grad-brand); border-color: transparent; }

.feature-card { position: relative; overflow: hidden; }
.feature-card .tag-mini {
  position: absolute; right: 18px; top: 18px;
  font-size: .72rem; font-weight: 800; letter-spacing: .06em;
  color: var(--accent); background: rgba(18, 185, 129, .1);
  border-radius: var(--radius-pill); padding: 3px 10px;
}

/* --------------------------------------------------------------------------
   8. 展示 / 选项卡
   -------------------------------------------------------------------------- */
.showcase { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(26px, 4vw, 56px); align-items: center; }
.showcase-reverse .showcase-media { order: 2; }
.showcase-media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); border: 1px solid var(--line); background: #fff; }
.showcase-media img { width: 100%; }
.showcase-list { list-style: none; display: grid; gap: 12px; margin: 20px 0 0; }
.showcase-list li { display: flex; gap: 11px; align-items: flex-start; font-size: .97rem; color: var(--text-soft); }
.check {
  flex: 0 0 22px; width: 22px; height: 22px; border-radius: 50%;
  background: rgba(18, 185, 129, .12); color: var(--accent);
  display: grid; place-items: center; font-size: .72rem; font-weight: 900; margin-top: 3px;
}

.tabbar { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 30px; }
.tab {
  font-family: inherit; font-size: .95rem; font-weight: 700;
  padding: 11px 22px; border-radius: var(--radius-pill);
  border: 1px solid var(--line-strong); background: #fff; color: var(--text-soft); cursor: pointer;
  transition: .2s ease;
}
.tab:hover { color: var(--brand); border-color: var(--brand); }
.tab.active { background: var(--brand); border-color: var(--brand); color: #fff; box-shadow: var(--shadow-brand); }
.tabpanel { display: none; }
.tabpanel.active { display: block; animation: fadeUp .45s ease; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* 选项卡内容排版 */
.tabpanel-inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(24px, 3vw, 46px); align-items: center; }
.tabpanel-inner img { border-radius: var(--radius); border: 1px solid var(--line); box-shadow: var(--shadow-sm); }

/* --------------------------------------------------------------------------
   9. 定价 / 版本
   -------------------------------------------------------------------------- */
.plans { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; align-items: stretch; }
.plan {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 30px; display: flex; flex-direction: column; box-shadow: var(--shadow-xs);
  transition: transform .25s ease, box-shadow .25s ease;
}
.plan:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.plan.featured { border: 2px solid var(--brand); box-shadow: var(--shadow-brand); position: relative; }
.plan.featured::after {
  content: "最受欢迎"; position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--grad-brand); color: #fff; font-size: .76rem; font-weight: 800;
  padding: 5px 16px; border-radius: var(--radius-pill); letter-spacing: .06em; white-space: nowrap;
}
.plan .plan-name { font-weight: 800; font-size: 1.16rem; margin-bottom: 4px; }
.plan .plan-desc { font-size: .88rem; color: var(--text-muted); margin-bottom: 18px; }
.plan .plan-price { font-size: 2.1rem; font-weight: 800; letter-spacing: -.03em; line-height: 1; margin-bottom: 4px; }
.plan .plan-price small { font-size: .9rem; font-weight: 600; color: var(--text-muted); }
.plan ul { list-style: none; display: grid; gap: 11px; margin: 20px 0 26px; }
.plan li { display: flex; gap: 10px; align-items: flex-start; font-size: .94rem; color: var(--text-soft); }
.plan .plan-foot { margin-top: auto; }

/* --------------------------------------------------------------------------
   10. 步骤
   -------------------------------------------------------------------------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: step; }
.step { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px; box-shadow: var(--shadow-xs); }
.step .step-no {
  counter-increment: step;
  width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center;
  background: var(--grad-brand); color: #fff; font-weight: 800; font-size: 1.15rem;
  margin-bottom: 16px; box-shadow: var(--shadow-brand);
}
.step .step-no::before { content: counter(step); }

/* --------------------------------------------------------------------------
   11. 评价
   -------------------------------------------------------------------------- */
.quote-card { display: flex; flex-direction: column; height: 100%; }
.quote-card .stars { color: var(--warn); font-size: .95rem; letter-spacing: 2px; margin-bottom: 12px; }
.quote-card blockquote { margin: 0 0 18px; font-size: .98rem; color: var(--text-soft); line-height: 1.8; }
.quote-person { display: flex; align-items: center; gap: 12px; margin-top: auto; }
.quote-avatar {
  width: 42px; height: 42px; border-radius: 50%; flex: 0 0 42px;
  background: var(--grad-brand); color: #fff; display: grid; place-items: center;
  font-weight: 800; font-size: 1rem;
}
.quote-person .name { font-weight: 700; font-size: .95rem; }
.quote-person .role { font-size: .8rem; color: var(--text-muted); }

/* --------------------------------------------------------------------------
   12. FAQ 折叠
   -------------------------------------------------------------------------- */
.faq-cats { display: flex; flex-wrap: wrap; gap: 9px; justify-content: center; margin-bottom: 28px; }
.faq-list { max-width: 900px; margin: 0 auto; display: grid; gap: 14px; }
.faq-group { display: grid; gap: 14px; }
.faq-group + .faq-group { margin-top: 4px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-xs); overflow: hidden; transition: border-color .25s ease, box-shadow .25s ease; }
.faq-item.open { border-color: #cfe0ff; box-shadow: var(--shadow-sm); }
.faq-q {
  width: 100%; text-align: left; font-family: inherit; cursor: pointer;
  background: none; border: 0; padding: 20px 56px 20px 24px; position: relative;
  font-size: 1.03rem; font-weight: 700; color: var(--text); line-height: 1.5;
}
.faq-q::after {
  content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%);
  font-size: 1.5rem; font-weight: 400; color: var(--brand); line-height: 1; transition: transform .25s ease;
}
.faq-item.open .faq-q::after { content: "−"; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .34s ease; }
.faq-item.open .faq-a { max-height: 620px; }
.faq-a-inner { padding: 0 24px 22px; color: var(--text-soft); font-size: .96rem; }
.faq-a-inner p:last-child { margin-bottom: 0; }

/* --------------------------------------------------------------------------
   13. 资讯
   -------------------------------------------------------------------------- */
.news-layout { display: grid; grid-template-columns: 1fr 306px; gap: clamp(26px, 3.4vw, 46px); align-items: start; }
.news-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.news-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-xs); display: flex; flex-direction: column;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: #cfe0ff; }
.news-thumb { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--bg-mute); }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.news-card:hover .news-thumb img { transform: scale(1.06); }
.news-cat {
  position: absolute; left: 14px; top: 14px; z-index: 2;
  font-size: .74rem; font-weight: 800; letter-spacing: .04em;
  background: rgba(255, 255, 255, .94); color: var(--brand);
  padding: 5px 12px; border-radius: var(--radius-pill);
}
.news-body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.news-meta { font-size: .8rem; color: var(--text-muted); display: flex; gap: 14px; margin-bottom: 10px; }
.news-body h3 { font-size: 1.12rem; margin-bottom: 8px; }
.news-body h3 a { color: var(--text); }
.news-body h3 a:hover { color: var(--brand); }
.news-body p { font-size: .92rem; margin-bottom: 16px; }
.news-more { margin-top: auto; font-size: .88rem; font-weight: 700; color: var(--brand); }

.news-featured { display: grid; grid-template-columns: 1.02fr .98fr; overflow: hidden; padding: 0; margin-bottom: 28px; }
.news-featured .news-thumb { aspect-ratio: auto; height: 100%; min-height: 260px; border-radius: 0; }
.news-featured .news-body { padding: 34px; }
.news-featured h3 { font-size: clamp(1.3rem, 2vw, 1.7rem); }

.sidebar { display: grid; gap: 22px; position: sticky; top: calc(var(--nav-h) + 18px); }
.side-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-xs); }
.side-card h4 { font-size: 1.02rem; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.side-list { list-style: none; display: grid; gap: 13px; }
.side-list li { display: flex; gap: 11px; align-items: flex-start; font-size: .92rem; }
.side-list .rank { flex: 0 0 22px; height: 22px; border-radius: 7px; background: var(--bg-mute); color: var(--brand); font-size: .74rem; font-weight: 800; display: grid; place-items: center; }
.side-list li:nth-child(1) .rank { background: var(--brand); color: #fff; }
.side-list li:nth-child(2) .rank { background: var(--brand-2); color: #fff; }
.side-list li:nth-child(3) .rank { background: #7fb4ff; color: #fff; }
.side-list a { color: var(--text-soft); font-weight: 600; line-height: 1.55; }
.side-list a:hover { color: var(--brand); }

.tags { display: flex; flex-wrap: wrap; gap: 9px; }
.tag {
  font-size: .84rem; font-weight: 600; color: var(--text-soft);
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius-pill);
  padding: 7px 14px; transition: .2s ease;
}
.tag:hover { color: #fff; background: var(--brand); border-color: var(--brand); }

.pager { display: flex; gap: 8px; justify-content: center; margin-top: 36px; flex-wrap: wrap; }
.pager a, .pager span {
  min-width: 42px; height: 42px; display: grid; place-items: center; padding: 0 14px;
  border: 1px solid var(--line-strong); border-radius: 12px;
  font-size: .92rem; font-weight: 700; color: var(--text-soft); background: #fff;
}
.pager a:hover { color: var(--brand); border-color: var(--brand); }
.pager .current { background: var(--brand); border-color: var(--brand); color: #fff; }

/* --------------------------------------------------------------------------
   14. 时间线
   -------------------------------------------------------------------------- */
.timeline { position: relative; max-width: 880px; margin: 0 auto; padding-left: 30px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(180deg, var(--brand), rgba(31, 111, 235, .1)); }
.tl-item { position: relative; padding: 0 0 34px 26px; }
.tl-item::before {
  content: ""; position: absolute; left: -30px; top: 6px; width: 16px; height: 16px; border-radius: 50%;
  background: #fff; border: 3px solid var(--brand); box-shadow: 0 0 0 4px rgba(31, 111, 235, .12);
}
.tl-year { font-weight: 800; color: var(--brand); font-size: .98rem; letter-spacing: .03em; margin-bottom: 4px; }
.tl-item h3 { font-size: 1.1rem; margin-bottom: 6px; }
.tl-item p { font-size: .93rem; margin-bottom: 0; }

/* --------------------------------------------------------------------------
   15. 表格
   -------------------------------------------------------------------------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-xs); background: #fff; }
table.tbl { width: 100%; border-collapse: collapse; min-width: 620px; font-size: .95rem; }
table.tbl th, table.tbl td { padding: 15px 20px; text-align: left; border-bottom: 1px solid var(--line); }
table.tbl thead th { background: var(--bg-soft); font-weight: 800; color: var(--text); white-space: nowrap; }
table.tbl tbody tr:last-child td { border-bottom: 0; }
table.tbl tbody tr:hover { background: #fafcff; }
table.tbl td.yes { color: var(--accent); font-weight: 700; }
table.tbl td.no { color: var(--text-muted); }

/* --------------------------------------------------------------------------
   16. 下载卡片
   -------------------------------------------------------------------------- */
.dl-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(272px, 1fr)); gap: 22px; }
.dl-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 28px; box-shadow: var(--shadow-xs); display: flex; flex-direction: column;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.dl-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: #cfe0ff; }
.dl-head { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.dl-icon {
  width: 58px; height: 58px; border-radius: 16px; display: grid; place-items: center; flex: 0 0 58px;
  background: var(--grad-soft); border: 1px solid #dfe9fb; font-size: 1.7rem;
}
.dl-card h3 { font-size: 1.16rem; margin-bottom: 2px; }
.dl-card .dl-sub { font-size: .84rem; color: var(--text-muted); }
.dl-meta { display: grid; gap: 8px; margin: 6px 0 20px; font-size: .88rem; color: var(--text-soft); }
.dl-meta span b { color: var(--text); font-weight: 700; }
.dl-card .btn { margin-top: auto; }

.badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.badge {
  font-size: .74rem; font-weight: 800; letter-spacing: .04em;
  padding: 5px 11px; border-radius: var(--radius-pill);
}
.badge-free { background: rgba(18, 185, 129, .12); color: var(--accent); }
.badge-hot { background: rgba(255, 138, 61, .14); color: #d96a1f; }
.badge-new { background: rgba(31, 111, 235, .12); color: var(--brand); }

/* --------------------------------------------------------------------------
   17. CTA 区块
   -------------------------------------------------------------------------- */
.cta-band {
  position: relative; overflow: hidden; border-radius: var(--radius-lg);
  background: var(--grad-dark); color: #fff; padding: clamp(38px, 5vw, 64px);
  box-shadow: var(--shadow-lg);
}
.cta-band::before {
  content: ""; position: absolute; inset: auto -15% -60% 45%; height: 420px;
  background: radial-gradient(50% 60% at 50% 50%, rgba(58, 141, 255, .34), transparent 72%);
}
.cta-band > * { position: relative; z-index: 2; }
.cta-band h2 { color: #fff; }
.cta-band p { color: #b8ccea; max-width: 640px; }
.cta-inline { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }

/* --------------------------------------------------------------------------
   18. 页头 / 面包屑
   -------------------------------------------------------------------------- */
.page-hero { position: relative; overflow: hidden; padding: clamp(44px, 5.4vw, 76px) 0 clamp(38px, 4.6vw, 62px); background: var(--grad-soft); border-bottom: 1px solid var(--line); }
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { margin-bottom: 14px; }
.page-hero .lead { font-size: clamp(1rem, 1.4vw, 1.14rem); color: var(--text-soft); max-width: 720px; margin-bottom: 0; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: .86rem; color: var(--text-muted); margin-bottom: 16px; }
.breadcrumb a { color: var(--text-muted); font-weight: 600; }
.breadcrumb a:hover { color: var(--brand); }
.breadcrumb .sep { opacity: .55; }

/* --------------------------------------------------------------------------
   19. 长文 SEO 内容
   -------------------------------------------------------------------------- */
.prose { max-width: 900px; }
.prose h2 { margin-top: 1.4em; font-size: clamp(1.3rem, 2vw, 1.7rem); }
.prose h3 { margin-top: 1.3em; }
.prose p, .prose li { color: var(--text-soft); }
.prose ul, .prose ol { margin: 0 0 1.2em; padding-left: 1.25em; }
.prose li { margin-bottom: .5em; }
.prose strong { color: var(--text); }
.prose-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px 44px; }

.kw-block { background: var(--bg-soft); border: 1px dashed var(--line-strong); border-radius: var(--radius); padding: 26px 28px; }
.kw-block p { margin: 0; font-size: .93rem; color: var(--text-soft); }
.kw-block a { font-weight: 600; }

/* --------------------------------------------------------------------------
   20. 页脚
   -------------------------------------------------------------------------- */
.site-footer { background: var(--brand-darker); color: #9fb4d8; padding: clamp(48px, 5.5vw, 72px) 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 34px; padding-bottom: 40px; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.site-footer h4 { color: #fff; font-size: .98rem; margin-bottom: 16px; letter-spacing: .02em; }
.site-footer p { color: #8fa6cc; font-size: .9rem; }
.footer-brand { display: flex; align-items: center; gap: 11px; margin-bottom: 14px; }
.footer-brand img { width: 40px; height: 40px; }
.footer-brand span { color: #fff; font-weight: 800; font-size: 1.2rem; }
.footer-links { list-style: none; display: grid; gap: 10px; }
.footer-links a { color: #9fb4d8; font-size: .92rem; }
.footer-links a:hover { color: #fff; }
.footer-contact { list-style: none; display: grid; gap: 10px; font-size: .92rem; }
.footer-contact b { color: #cfdcf4; }
.footer-seo {
  padding: 26px 0; font-size: .84rem; color: #7d93ba; line-height: 1.9;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.footer-seo a { color: #a8bde0; }
.footer-seo a:hover { color: #fff; }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between; align-items: center;
  padding: 22px 0; font-size: .84rem; color: #7d93ba;
}
.footer-bottom .links { display: flex; flex-wrap: wrap; gap: 18px; }

/* --------------------------------------------------------------------------
   21. 回到顶部
   -------------------------------------------------------------------------- */
.to-top {
  position: fixed; right: 22px; bottom: 26px; z-index: 90;
  width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--line);
  background: #fff; color: var(--brand); box-shadow: var(--shadow-md); cursor: pointer;
  display: grid; place-items: center; font-size: 1.1rem; font-weight: 800;
  opacity: 0; visibility: hidden; transform: translateY(12px); transition: .28s ease;
}
.to-top.show { opacity: 1; visibility: visible; transform: none; }

/* --------------------------------------------------------------------------
   22. 滚动入场动画
   -------------------------------------------------------------------------- */
/* 仅在 JavaScript 可用时才启用入场动画，保证未执行 JS 的搜索引擎爬虫也能看到全部内容 */
.js [data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.js [data-reveal].revealed { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js [data-reveal] { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .hero-float, .hero-mascot { animation: none; }
}

/* --------------------------------------------------------------------------
   23. 响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1040px) {
  .news-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .plans { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
}

@media (max-width: 900px) {
  :root { --nav-h: 66px; }
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed; inset: var(--nav-h) 0 auto; flex-direction: column; align-items: stretch;
    background: #fff; border-bottom: 1px solid var(--line); padding: 12px 22px 22px;
    box-shadow: var(--shadow-md); gap: 2px;
    transform: translateY(-140%); transition: transform .34s cubic-bezier(.4,0,.2,1);
    max-height: calc(100vh - var(--nav-h)); overflow-y: auto;
  }
  .nav-menu.open { transform: none; }
  .nav-menu a { padding: 14px 12px; font-size: 1.02rem; border-radius: var(--radius-sm); }
  .nav-cta .btn-nav-download { display: none; }

  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .hero-float { display: none; }
  .hero-mascot { width: 84px; left: auto; right: 6px; bottom: -18px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .grid-4, .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .showcase, .tabpanel-inner { grid-template-columns: 1fr; }
  .showcase-reverse .showcase-media { order: 0; }
  .steps { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .news-featured { grid-template-columns: 1fr; }
  .news-featured .news-thumb { min-height: 200px; }
  .prose-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  body { font-size: 15.5px; }
  .grid-4, .grid-3, .grid-2, .grid-auto, .grid-auto-sm { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .sidebar { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .card, .step, .plan, .dl-card, .side-card { padding: 22px; }
  .cta-band { padding: 30px 24px; }
  .btn { padding: 13px 22px; }
  .btn-lg { padding: 15px 26px; font-size: 1rem; }
  .faq-q { padding: 17px 48px 17px 18px; font-size: .98rem; }
  .hero-float.f1, .hero-float.f2 { display: none; }
}