/* ==========================================================================
   GX工具箱 官网 · 样式表
   设计基调：深色导航 + 橙色强调（参考星空外挂官网）
   纯 CSS，零外部依赖（不引用任何 CDN / 字体服务）
   ========================================================================== */

/* ── 设计变量 ─────────────────────────────────────────────────────────── */
:root {
  --brand:      #2b53d8;   /* 主色：蓝 */
  --brand-dark: #1c3aa8;
  --brand-soft: #e8edfd;
  --accent:     #f2711c;   /* 强调色：橙 */
  --accent-dark:#d95a0a;
  --accent-soft:#fff1e6;

  --ink:        #1a2236;   /* 正文深色 */
  --ink-2:      #4a5568;   /* 次要文字 */
  --ink-3:      #8a94a6;   /* 弱化文字 */
  --line:       #e3e8f0;
  --bg:         #f5f7fb;
  --bg-alt:     #eef2f9;
  --card:       #ffffff;

  --navy:       #0d1730;   /* 深色导航 / 首屏底色 */
  --navy-2:     #132046;

  --ok:         #0b8a5e;

  --radius:     14px;
  --radius-sm:  10px;
  --radius-lg:  22px;

  --shadow-sm:  0 1px 2px rgba(16, 29, 66, .06), 0 2px 8px rgba(16, 29, 66, .05);
  --shadow:     0 6px 24px rgba(16, 29, 66, .09);
  --shadow-lg:  0 18px 48px rgba(16, 29, 66, .16);

  --wrap:       1180px;
  --font: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

/* ── 基础重置 ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand); text-decoration: none; transition: color .18s ease; }
a:hover { color: var(--brand-dark); }
h1, h2, h3, h4 { margin: 0 0 .6em; line-height: 1.25; font-weight: 800; letter-spacing: -.01em; }
p  { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; cursor: pointer; }
table { border-collapse: collapse; width: 100%; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 999;
  background: var(--brand); color: #fff; padding: 10px 18px;
  border-radius: 0 0 10px 10px; transition: top .2s ease;
}
.skip-link:focus { top: 0; color: #fff; }

:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* ── 按钮 ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; border: 2px solid transparent;
  font-weight: 700; font-size: 15px; line-height: 1;
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease, color .16s ease;
  cursor: pointer; white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 8px 20px rgba(242, 113, 28, .32); }
.btn-primary:hover { background: var(--accent-dark); color: #fff; box-shadow: 0 12px 26px rgba(242, 113, 28, .4); }
.btn-blue { background: var(--brand); color: #fff; box-shadow: 0 8px 20px rgba(43, 83, 216, .3); }
.btn-blue:hover { background: var(--brand-dark); color: #fff; }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.45); }
.btn-ghost:hover { background: rgba(255,255,255,.12); border-color: #fff; color: #fff; }
.btn-outline { background: #fff; color: var(--brand); border-color: var(--line); }
.btn-outline:hover { border-color: var(--brand); background: var(--brand-soft); }
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-block { width: 100%; }
.btn-mini {
  padding: 6px 12px; font-size: 13px; border-radius: 8px;
  background: var(--brand-soft); color: var(--brand); border: 1px solid transparent; font-weight: 700;
}
.btn-mini:hover { background: var(--brand); color: #fff; }
.btn-mini.is-done { background: var(--ok); color: #fff; }

/* ── 顶部导航 ─────────────────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(13, 23, 48, .96);
  backdrop-filter: saturate(150%) blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: box-shadow .2s ease;
}
.site-header.is-stuck { box-shadow: 0 6px 24px rgba(0,0,0,.28); }
.header-inner { display: flex; align-items: center; gap: 20px; min-height: 68px; }

.brand { display: flex; align-items: center; gap: 12px; color: #fff; }
.brand:hover { color: #fff; }
.brand-mark {
  width: 42px; height: 42px; flex: none; border-radius: 12px;
  display: grid; place-items: center; font-weight: 900; font-size: 17px; letter-spacing: .5px;
  color: #fff; background: linear-gradient(135deg, var(--brand) 0%, #5b7bff 100%);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.18), 0 6px 16px rgba(43,83,216,.4);
}
.brand-mark.small { width: 34px; height: 34px; font-size: 14px; border-radius: 10px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { font-size: 18px; letter-spacing: .5px; }
.brand-text small { font-size: 11px; color: #93a2c4; letter-spacing: 2px; }

.site-nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.site-nav a {
  color: #c8d2ea; padding: 10px 15px; border-radius: 8px;
  font-size: 15px; font-weight: 600; transition: background .16s, color .16s;
}
.site-nav a:hover { color: #fff; background: rgba(255,255,255,.08); }
.site-nav a.is-active { color: #fff; background: rgba(255,255,255,.12); }
.site-nav a.nav-cta {
  background: var(--accent); color: #fff; margin-left: 8px;
  box-shadow: 0 6px 16px rgba(242,113,28,.35);
}
.site-nav a.nav-cta:hover { background: var(--accent-dark); }

.nav-toggle {
  display: none; margin-left: auto; width: 44px; height: 40px;
  background: transparent; border: 1px solid rgba(255,255,255,.2); border-radius: 9px;
  padding: 10px;
}
.nav-toggle span { display: block; height: 2px; background: #fff; border-radius: 2px; margin: 4px 0; transition: .2s; }

/* ── 首屏 ─────────────────────────────────────────────────────────────── */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(900px 460px at 78% 6%, rgba(43, 83, 216, .45), transparent 60%),
    radial-gradient(680px 420px at 8% 92%, rgba(242, 113, 28, .22), transparent 62%),
    linear-gradient(160deg, #0b1428 0%, #0d1730 45%, #101d3f 100%);
  color: #fff;
  padding: 76px 0 132px;
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 46px 46px, 46px 46px;
  -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
          mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
}
.hero-inner { position: relative; display: grid; grid-template-columns: 1.08fr .92fr; gap: 48px; align-items: center; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.18);
  color: #dce4f7; font-size: 13px; font-weight: 600; letter-spacing: .4px;
  padding: 7px 14px; border-radius: 999px; margin-bottom: 20px;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: #4ade80; box-shadow: 0 0 0 3px rgba(74,222,128,.25); }
.hero h1 { font-size: clamp(38px, 5vw, 58px); margin-bottom: 16px; letter-spacing: -.02em; }
.hero .lead { font-size: 17px; line-height: 1.75; color: #c2cde6; max-width: 34em; margin-bottom: 28px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 34px; }

.facts { display: flex; flex-wrap: wrap; gap: 30px; margin: 0; }
.facts > div { border-left: 2px solid rgba(255,255,255,.16); padding-left: 14px; }
.facts dt { font-size: 12px; color: #8ea0c6; margin-bottom: 4px; letter-spacing: .5px; }
.facts dd { margin: 0; font-size: 16px; font-weight: 700; color: #fff; }

/* 首屏右侧：关于弹窗示意 */
.hero-visual { display: flex; justify-content: center; }
.mock-dialog {
  width: 300px; background: #fff; border-radius: 12px; overflow: hidden;
  box-shadow: 0 30px 70px rgba(0,0,0,.5); color: #1a2236;
}
.mock-titlebar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 12px; background: #eef1f6; font-size: 12px; color: #55617a;
  border-bottom: 1px solid #e0e5ee;
}
.mock-close { color: #98a2b3; font-size: 13px; }
.mock-body { padding: 18px 18px 20px; }
.mock-head { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.mock-info {
  width: 26px; height: 26px; flex: none; border-radius: 50%; background: var(--brand); color: #fff;
  display: grid; place-items: center; font-weight: 800; font-style: italic; font-size: 15px;
}
.mock-head-text { font-size: 15px; font-weight: 700; color: #1e293b; }
.mock-qr { display: grid; place-items: center; padding: 8px; background: #f7f9fc; border: 1px solid #e8edf5; border-radius: 10px; }
.mock-qr img { width: 150px; height: 150px; image-rendering: pixelated; }
.mock-info-list { margin: 14px 0 12px; font-size: 12.5px; color: #46536b; }
.mock-info-list li { padding: 2px 0; }
.mock-url {
  font-size: 12px; color: var(--brand); text-decoration: underline; word-break: break-all;
  padding-bottom: 12px; border-bottom: 1px solid #eef1f6; margin-bottom: 12px;
}
.mock-ok {
  text-align: center; font-size: 13px; font-weight: 600; color: #334155;
  border: 1px solid #d5dbe6; border-radius: 6px; padding: 6px; background: #f2f4f8;
}

/* ── 快捷三卡 ─────────────────────────────────────────────────────────── */
.quick-actions { margin-top: -80px; position: relative; z-index: 5; }
.quick-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.quick-card {
  background: var(--card); border-radius: var(--radius); padding: 24px 26px;
  box-shadow: var(--shadow); border: 1px solid var(--line); border-top: 4px solid var(--accent);
  display: flex; gap: 16px; align-items: flex-start; color: inherit;
  transition: transform .18s ease, box-shadow .18s ease;
}
.quick-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); color: inherit; }
.quick-icon {
  width: 48px; height: 48px; flex: none; border-radius: 12px; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent);
}
.quick-icon svg { width: 26px; height: 26px; }
.quick-card h3 { font-size: 17px; margin-bottom: 4px; }
.quick-card p { font-size: 14px; color: var(--ink-2); margin: 0; line-height: 1.6; }

/* ── 通用分区 ─────────────────────────────────────────────────────────── */
.section { padding: 78px 0; }
.section-alt { background: var(--bg-alt); }
.section-navy { background: var(--navy); color: #fff; }
.section-head { max-width: 760px; margin: 0 auto 46px; text-align: center; }
.section-head.left { margin-left: 0; text-align: left; }
.section-kicker {
  display: inline-block; font-size: 13px; font-weight: 800; letter-spacing: 2px;
  color: var(--accent); text-transform: uppercase; margin-bottom: 12px;
}
.section-head h2 { font-size: clamp(26px, 3.4vw, 36px); margin-bottom: 12px; }
.section-head p, .section-sub { color: var(--ink-2); font-size: 16px; margin: 0; }
.section-navy .section-sub { color: #b6c2dd; }

/* ── 功能卡片 ─────────────────────────────────────────────────────────── */
.fgroup { margin-bottom: 46px; }
.fgroup:last-child { margin-bottom: 0; }
.fgroup-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 18px; flex-wrap: wrap; }
.fgroup-head h3 { font-size: 21px; margin: 0; padding-left: 14px; position: relative; }
.fgroup-head h3::before {
  content: ""; position: absolute; left: 0; top: 3px; bottom: 3px; width: 5px;
  border-radius: 3px; background: linear-gradient(180deg, var(--brand), var(--accent));
}
.fgroup-head p { margin: 0; font-size: 14px; color: var(--ink-3); }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow-sm); transition: transform .18s, box-shadow .18s, border-color .18s;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #cbd6ea; }
.card-icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  background: var(--brand-soft); color: var(--brand); margin-bottom: 15px;
}
.card-icon svg { width: 24px; height: 24px; }
.card h4 { font-size: 16.5px; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.card .en {
  font-family: Consolas, "Courier New", monospace; font-size: 11px; font-weight: 600;
  color: var(--ink-3); background: var(--bg-alt); padding: 2px 7px; border-radius: 5px;
}
.card p { font-size: 14px; color: var(--ink-2); margin: 0 0 14px; line-height: 1.68; }
.card .tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; }
.tag {
  font-size: 12px; font-weight: 600; color: var(--brand);
  background: var(--brand-soft); border-radius: 6px; padding: 3px 9px;
}

/* 工具条截图 */
.toolbar-showcase { margin-top: 8px; }
.toolbar-frame {
  background: #eef1f6; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; overflow-x: auto; box-shadow: var(--shadow-sm);
}
.toolbar-frame img { min-width: 1100px; border-radius: 6px; }
.toolbar-cap { text-align: center; font-size: 13.5px; color: var(--ink-3); margin: 12px 0 0; }

/* ── 视频教程 ─────────────────────────────────────────────────────────── */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 36px; }
.filter-btn {
  padding: 8px 18px; border-radius: 999px; border: 1px solid var(--line);
  background: #fff; color: var(--ink-2); font-size: 14px; font-weight: 600; transition: .16s;
}
.filter-btn:hover { border-color: var(--brand); color: var(--brand); }
.filter-btn.is-active { background: var(--brand); border-color: var(--brand); color: #fff; }

.tut-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.tut-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm); display: flex; flex-direction: column;
  transition: transform .18s, box-shadow .18s;
}
.tut-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.tut-cover {
  position: relative; aspect-ratio: 16 / 9; background: linear-gradient(135deg, #16233f, #22335c);
  display: grid; place-items: center; overflow: hidden;
}
.tut-cover img { width: 100%; height: 100%; object-fit: cover; }
.tut-cover .play-badge {
  width: 54px; height: 54px; border-radius: 50%; background: rgba(242,113,28,.94); color: #fff;
  display: grid; place-items: center; box-shadow: 0 8px 22px rgba(0,0,0,.35);
  position: absolute; transition: transform .18s;
}
.tut-card:hover .play-badge { transform: scale(1.08); }
.tut-cover .play-badge svg { width: 22px; height: 22px; margin-left: 3px; }
.tut-cover .dur {
  position: absolute; right: 10px; bottom: 10px; background: rgba(0,0,0,.7); color: #fff;
  font-size: 12px; padding: 2px 8px; border-radius: 5px; font-weight: 600;
}
.tut-cover .cat {
  position: absolute; left: 10px; top: 10px; background: rgba(43,83,216,.92); color: #fff;
  font-size: 12px; padding: 3px 10px; border-radius: 999px; font-weight: 600;
}
.tut-body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.tut-body h4 { font-size: 16.5px; margin-bottom: 8px; }
.tut-body p { font-size: 13.5px; color: var(--ink-2); margin: 0 0 14px; line-height: 1.62; }
.tut-meta { display: flex; align-items: center; justify-content: space-between; margin-top: auto; gap: 10px; }
.tut-date { font-size: 12.5px; color: var(--ink-3); }
.tut-soon { font-size: 12px; font-weight: 700; color: var(--accent); background: var(--accent-soft); padding: 4px 10px; border-radius: 6px; }

/* ── 下载 & 购买 ──────────────────────────────────────────────────────── */
.dl-list { display: flex; flex-direction: column; gap: 14px; max-width: 860px; margin: 0 auto; }
.dl-item {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 24px; box-shadow: var(--shadow-sm);
}
.dl-icon {
  width: 50px; height: 50px; flex: none; border-radius: 12px; display: grid; place-items: center;
  background: var(--brand-soft); color: var(--brand);
}
.dl-icon svg { width: 26px; height: 26px; }
.dl-main { flex: 1; min-width: 200px; }
.dl-main h4 { font-size: 16.5px; margin-bottom: 4px; }
.dl-main .meta { font-size: 13px; color: var(--ink-3); display: flex; flex-wrap: wrap; gap: 8px 16px; }
.dl-note { font-size: 13.5px; color: var(--ink-2); margin: 6px 0 0; }
.dl-badge {
  font-size: 12px; font-weight: 700; color: var(--brand); background: var(--brand-soft);
  padding: 3px 9px; border-radius: 6px;
}

.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.plan {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 30px 26px; display: flex; flex-direction: column; box-shadow: var(--shadow-sm);
  transition: transform .18s, box-shadow .18s;
}
.plan:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.plan.is-highlight {
  border: 2px solid var(--accent); box-shadow: var(--shadow-lg); position: relative;
}
.plan.is-highlight::after {
  content: "推荐"; position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #fff; font-size: 12px; font-weight: 800; letter-spacing: 1px;
  padding: 4px 16px; border-radius: 999px;
}
.plan h3 { font-size: 19px; margin-bottom: 6px; }
.plan .price { font-size: 26px; font-weight: 900; color: var(--brand); margin: 6px 0 18px; }
.plan .price small { font-size: 14px; font-weight: 600; color: var(--ink-3); }
.plan ul { display: flex; flex-direction: column; gap: 11px; margin-bottom: 24px; }
.plan li { position: relative; padding-left: 26px; font-size: 14.5px; color: var(--ink-2); }
.plan li::before {
  content: ""; position: absolute; left: 0; top: 8px; width: 15px; height: 9px;
  border-left: 2.5px solid var(--ok); border-bottom: 2.5px solid var(--ok);
  transform: rotate(-45deg); border-radius: 1px;
}
.plan .btn { margin-top: auto; }

/* ── 联系 ─────────────────────────────────────────────────────────────── */
.contact-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 46px; align-items: center; }
.contact-copy h2 { font-size: clamp(24px, 3vw, 32px); }
.contact-list { display: flex; flex-direction: column; gap: 14px; margin: 24px 0 28px; }
.contact-list li {
  display: flex; align-items: center; gap: 14px;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-sm); padding: 14px 18px;
}
.contact-list .ci {
  width: 40px; height: 40px; flex: none; border-radius: 10px; display: grid; place-items: center;
  background: rgba(255,255,255,.1); color: #fff;
}
.contact-list .ci svg { width: 20px; height: 20px; }
.contact-list .ci-label { display: block; font-size: 12px; color: #93a2c4; margin-bottom: 2px; }
.contact-list a { color: #fff; font-weight: 700; }
.contact-list a:hover { color: var(--accent); }
.contact-list .btn-mini { margin-left: auto; background: rgba(255,255,255,.14); color: #fff; }
.contact-list .btn-mini:hover { background: var(--accent); }

/* 浅色版联系列表（用于白底页面） */
.contact-light .contact-list li { background: #fff; border-color: var(--line); }
.contact-light .contact-list .ci { background: var(--brand-soft); color: var(--brand); }
.contact-light .contact-list .ci-label { color: var(--ink-3); }
.contact-light .contact-list a { color: var(--ink); }
.contact-light .contact-list a:hover { color: var(--brand); }
.contact-light .contact-list .btn-mini { background: var(--brand-soft); color: var(--brand); }
.contact-light .contact-list .btn-mini:hover { background: var(--brand); color: #fff; }

.qr-card {
  background: #fff; border-radius: var(--radius-lg); padding: 30px 26px; text-align: center;
  box-shadow: var(--shadow-lg);
}
.qr-frame {
  width: 220px; height: 220px; margin: 0 auto 18px; border-radius: var(--radius);
  background: #f7f9fc; border: 1px solid var(--line); display: grid; place-items: center; padding: 10px;
  position: relative;
}
.qr-frame img { width: 100%; height: 100%; object-fit: contain; image-rendering: pixelated; }
.qr-frame.is-empty::after {
  content: "二维码待放入 assets/img/wx_qr.png";
  position: absolute; inset: 0; display: grid; place-items: center; text-align: center;
  font-size: 13px; color: var(--ink-3); border: 2px dashed var(--line); border-radius: var(--radius); margin: 6px;
}
.qr-title { font-size: 16px; font-weight: 800; color: var(--ink); margin: 0 0 6px; }
.qr-sub { font-size: 13.5px; color: var(--ink-3); margin: 0; }

/* ── 版本记录 ─────────────────────────────────────────────────────────── */
.cl-toolbar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.cl-count { font-size: 14px; color: var(--ink-3); }
.cl-list { position: relative; max-width: 900px; margin: 0 auto; }
.cl-list::before {
  content: ""; position: absolute; left: 88px; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(180deg, var(--brand), var(--accent)); border-radius: 2px;
}
.cl-item { position: relative; display: grid; grid-template-columns: 88px 1fr; gap: 26px; padding: 0 0 26px; }
.cl-ver {
  text-align: right; font-weight: 800; font-size: 15px; color: var(--brand);
  padding-top: 2px; font-family: Consolas, "Courier New", monospace;
}
.cl-body {
  position: relative; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 16px 20px; box-shadow: var(--shadow-sm);
}
.cl-body::before {
  content: ""; position: absolute; left: -33px; top: 20px; width: 12px; height: 12px;
  border-radius: 50%; background: #fff; border: 3px solid var(--brand);
}
.cl-body .cl-date { font-size: 12.5px; color: var(--ink-3); margin-bottom: 6px; }
.cl-body ul { display: flex; flex-direction: column; gap: 5px; }
.cl-body li { position: relative; padding-left: 16px; font-size: 14.5px; color: var(--ink-2); }
.cl-body li::before { content: ""; position: absolute; left: 0; top: 10px; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.cl-more { text-align: center; margin-top: 10px; }
.cl-hidden { display: none; }

/* ── 表格 ─────────────────────────────────────────────────────────────── */
.table-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm); max-width: 900px; margin: 0 auto;
}
.spec-table th, .spec-table td { padding: 15px 22px; text-align: left; font-size: 15px; border-bottom: 1px solid var(--line); }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.spec-table th { width: 34%; background: var(--bg-alt); color: var(--ink-2); font-weight: 700; }
.spec-table td { color: var(--ink); }

/* ── 富文本区（用于说明书 / 帮助） ─────────────────────────────────────── */
.prose { max-width: 860px; margin: 0 auto; }
.prose h2 { font-size: 26px; margin: 40px 0 14px; padding-top: 12px; border-top: 2px solid var(--line); }
.prose h2:first-child { border-top: 0; margin-top: 0; }
.prose h3 { font-size: 19px; margin: 26px 0 10px; }
.prose p, .prose li { color: var(--ink-2); }
.prose ol.norm { list-style: decimal; padding-left: 22px; }
.prose ul.norm { list-style: disc; padding-left: 22px; }
.prose li { margin-bottom: 6px; }
.prose code {
  font-family: Consolas, "Courier New", monospace; font-size: .92em;
  background: var(--bg-alt); border: 1px solid var(--line); border-radius: 5px; padding: 1px 6px; color: #b03060;
}
.prose pre {
  background: #0d1730; color: #d5def2; border-radius: var(--radius-sm); padding: 18px 20px;
  overflow-x: auto; font-size: 13.5px; line-height: 1.6;
}
.prose pre code { background: transparent; border: 0; color: inherit; padding: 0; }
.tip {
  border-left: 4px solid var(--brand); background: var(--brand-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 14px 18px; margin: 18px 0;
  font-size: 14.5px; color: #23408f;
}
.tip.warn { border-color: var(--accent); background: var(--accent-soft); color: #9a4a06; }

/* ── 页脚 ─────────────────────────────────────────────────────────────── */
.site-footer { background: var(--navy); color: #a9b6d4; padding: 52px 0 30px; }
.footer-inner { display: grid; gap: 26px; }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand strong { color: #fff; font-size: 17px; display: block; }
.footer-brand p { margin: 3px 0 0; font-size: 13px; color: #8ea0c6; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer-nav a { color: #c2cde6; font-size: 14.5px; }
.footer-nav a:hover { color: #fff; }
.copyright { margin: 0; font-size: 13px; color: #7d8cb2; border-top: 1px solid rgba(255,255,255,.1); padding-top: 22px; }

/* ── 右侧悬浮联系条 ───────────────────────────────────────────────────── */
.float-bar {
  position: fixed; right: 0; top: 50%; transform: translateY(-50%);
  z-index: 90; display: flex; flex-direction: column; gap: 2px;
}
.float-bar a, .float-bar button {
  width: 54px; height: 54px; display: grid; place-items: center;
  background: var(--navy-2); color: #fff; border: 0; border-radius: 10px 0 0 10px;
  position: relative; transition: background .16s;
}
.float-bar a:hover, .float-bar button:hover { background: var(--brand); color: #fff; }
.float-bar svg { width: 22px; height: 22px; }
.float-bar .fb-label {
  position: absolute; right: 100%; top: 50%; transform: translateY(-50%);
  background: var(--ink); color: #fff; font-size: 13px; white-space: nowrap;
  padding: 7px 12px; border-radius: 8px; margin-right: 8px; opacity: 0; pointer-events: none;
  transition: opacity .16s;
}
.float-bar a:hover .fb-label, .float-bar button:hover .fb-label { opacity: 1; }
.float-qr {
  position: absolute; right: 100%; top: 50%; transform: translateY(-50%);
  width: 190px; background: #fff; border-radius: 12px; padding: 12px; margin-right: 10px;
  box-shadow: var(--shadow-lg); opacity: 0; pointer-events: none; transition: opacity .18s;
}
.float-qr img { width: 100%; }
.float-qr span { display: block; text-align: center; font-size: 12.5px; color: var(--ink-2); margin-top: 6px; }
.float-item { position: relative; }
.float-item:hover .float-qr { opacity: 1; pointer-events: auto; }

/* ── 页面小标题区（内页顶部） ─────────────────────────────────────────── */
.page-hero {
  background: linear-gradient(150deg, #0d1730, #16264c);
  color: #fff; padding: 54px 0 50px; position: relative; overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .4;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 42px 42px;
}
.page-hero .wrap { position: relative; }
.page-hero h1 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 10px; }
.page-hero p { color: #b6c2dd; max-width: 60em; margin: 0; }
.breadcrumb { font-size: 13.5px; color: #8ea0c6; margin-bottom: 14px; }
.breadcrumb a { color: #b6c2dd; }
.breadcrumb a:hover { color: #fff; }

/* ── 顶部公告条 ───────────────────────────────────────────────────────── */
.notice-bar {
  background: linear-gradient(90deg, var(--accent), #ff8a3d); color: #fff;
  font-size: 13.5px; text-align: center; padding: 8px 16px; font-weight: 600;
}
.notice-bar a { color: #fff; text-decoration: underline; }

/* ── 空状态 ───────────────────────────────────────────────────────────── */
.empty-state {
  text-align: center; padding: 50px 20px; color: var(--ink-3);
  border: 2px dashed var(--line); border-radius: var(--radius); background: #fff;
}

/* ── 响应式 ───────────────────────────────────────────────────────────── */
@media (max-width: 1000px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; }
  .mock-dialog { width: 280px; }
  .cards, .tut-grid { grid-template-columns: repeat(2, 1fr); }
  .plans { grid-template-columns: 1fr; }
  .quick-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 34px; }
  .float-bar { display: none; }
}
@media (max-width: 720px) {
  .wrap { padding: 0 18px; }
  .section { padding: 56px 0; }
  .hero { padding: 54px 0 100px; }
  .quick-actions { margin-top: -66px; }
  .cards, .tut-grid { grid-template-columns: 1fr; }
  .facts { gap: 20px; }
  .cl-list::before { left: 6px; }
  .cl-item { grid-template-columns: 1fr; gap: 8px; padding-left: 26px; }
  .cl-ver { text-align: left; }
  .cl-body::before { left: -26px; }
  .dl-item { flex-direction: column; align-items: flex-start; }
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: stretch;
    background: #0d1730; padding: 10px 16px 18px; gap: 4px; margin: 0;
    border-bottom: 1px solid rgba(255,255,255,.1); display: none;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 13px 14px; }
  .site-nav a.nav-cta { margin: 6px 0 0; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* 打印（把页面另存为 PDF 时更干净） */
@media print {
  .site-header, .float-bar, .notice-bar, .site-footer, .quick-actions { display: none !important; }
  body { background: #fff; }
}

/* ==========================================================================
   视频弹窗播放器（点击教程卡片后弹出）
   ========================================================================== */
html.gx-modal-open, html.gx-modal-open body { overflow: hidden; }

.gx-modal { position: fixed; inset: 0; z-index: 999; display: flex; align-items: center; justify-content: center; padding: 24px; }
.gx-modal-mask {
  position: absolute; inset: 0; background: rgba(6, 11, 24, .82);
  opacity: 0; transition: opacity .18s ease; backdrop-filter: blur(3px);
}
.gx-modal.is-on .gx-modal-mask { opacity: 1; }

.gx-modal-box {
  position: relative; width: min(1080px, 100%); max-height: 100%;
  display: flex; flex-direction: column;
  background: #0f1a33; border: 1px solid rgba(255,255,255,.14); border-radius: 18px;
  box-shadow: 0 30px 90px rgba(0,0,0,.6);
  transform: translateY(14px) scale(.98); opacity: 0;
  transition: transform .2s ease, opacity .2s ease;
  overflow: hidden;
}
.gx-modal.is-on .gx-modal-box { transform: translateY(0) scale(1); opacity: 1; }

.gx-modal-head {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 16px 20px; border-bottom: 1px solid rgba(255,255,255,.1);
}
.gx-modal-head h3 { margin: 0; font-size: 19px; color: #f3f6ff; font-weight: 800; }
.gx-modal-close {
  flex: 0 0 auto; width: 38px; height: 38px; border-radius: 10px; cursor: pointer;
  border: 1px solid rgba(255,255,255,.18); background: rgba(255,255,255,.06);
  color: #cdd6ec; font-size: 16px; line-height: 1; transition: background .15s ease, color .15s ease;
}
.gx-modal-close:hover { background: #f2711c; color: #fff; border-color: #f2711c; }

.gx-modal-body { background: #05080f; aspect-ratio: 16 / 9; width: 100%; }
.gx-modal-body video { display: block; width: 100%; height: 100%; background: #000; }
.gx-modal-body iframe { display: block; width: 100%; height: 100%; border: 0; }

.gx-modal-foot {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 14px 20px; border-top: 1px solid rgba(255,255,255,.1);
  font-size: 14px; color: #9fabc9;
}
.gx-modal-foot .mcat {
  padding: 3px 12px; border-radius: 999px; font-weight: 700;
  background: rgba(242,113,28,.16); color: #ffb066; border: 1px solid rgba(242,113,28,.4);
}
.gx-modal-foot .mdesc { flex: 1 1 320px; }
.gx-modal-foot .mdur { font-variant-numeric: tabular-nums; color: #cdd6ec; }

.tut-card .play-badge { pointer-events: none; }
.tut-card[data-playable="1"] { cursor: pointer; }
.tut-card[data-playable="1"]:hover .play-badge { transform: scale(1.12); }

@media (max-width: 720px) {
  .gx-modal { padding: 12px; }
  .gx-modal-head h3 { font-size: 16px; }
}