/* ============================================================
   GFiles 官网样式（纯静态，无框架依赖）
   结构：变量 → 基础 → 导航 → Hero → 信任条 → 功能卡片
         → 插件专区 → 对比表 → CTA → Footer → 响应式
   ============================================================ */

/* ---------- 变量与基础 ---------- */
:root {
  --primary: #0e9488;        /* 主色：青绿（与应用容量条一致） */
  --primary-dark: #0b7a70;
  --primary-light: #e6f7f5;
  --ink: #1a2332;            /* 主文字 */
  --ink-2: #4b5563;          /* 次文字 */
  --ink-3: #8a94a6;          /* 弱文字 */
  --bg: #ffffff;
  --bg-soft: #f6f8fa;        /* 浅灰段落底 */
  --line: #e5e9ef;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(16, 32, 48, .06), 0 8px 24px rgba(16, 32, 48, .08);
  --shadow-lg: 0 4px 12px rgba(16, 32, 48, .08), 0 24px 64px rgba(16, 32, 48, .16);
  --maxw: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: var(--primary); text-decoration: none; }

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

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: 10px;
  font-size: 16px; font-weight: 600;
  cursor: pointer; border: none;
  transition: all .18s ease;
}
.btn-primary {
  background: var(--primary); color: #fff;
  box-shadow: 0 4px 14px rgba(14, 148, 136, .35);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-ghost {
  background: transparent; color: var(--ink);
  border: 1px solid var(--line);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }

/* ---------- 导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex; align-items: center; gap: 32px;
  height: 64px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 20px; font-weight: 700; color: var(--ink);
  letter-spacing: .5px;
}
.logo-mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), #22b8a8);
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-size: 15px; font-weight: 800;
}
.nav-links { display: flex; gap: 28px; flex: 1; }
.nav-links a {
  color: var(--ink-2); font-size: 15px; font-weight: 500;
  transition: color .15s;
}
.nav-links a:hover { color: var(--primary); }
.nav-cta { margin-left: auto; }
.nav .btn { padding: 8px 20px; font-size: 14px; }

/* ---------- Hero ---------- */
.hero {
  padding: 88px 0 64px;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(14, 148, 136, .10), transparent),
    linear-gradient(180deg, #fbfdfd 0%, #ffffff 100%);
  text-align: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: 999px;
  background: var(--primary-light); color: var(--primary-dark);
  font-size: 13px; font-weight: 600; margin-bottom: 24px;
}
.hero h1 {
  font-size: 52px; font-weight: 800; line-height: 1.25;
  letter-spacing: 1px; margin-bottom: 20px;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--primary), #22b8a8);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  font-size: 19px; color: var(--ink-2); max-width: 620px;
  margin: 0 auto 36px;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; margin-bottom: 20px; }
.hero-note { font-size: 13px; color: var(--ink-3); }
.hero-shot {
  max-width: 960px; margin: 56px auto 0;
  border-radius: 14px; overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
}

/* ---------- 信任条 ---------- */
.trust {
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  background: var(--bg-soft);
}
.trust-inner {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  padding: 28px 0; text-align: center;
}
.trust-item b { display: block; font-size: 18px; color: var(--ink); }
.trust-item span { font-size: 13px; color: var(--ink-3); }

/* ---------- 区块通用 ---------- */
.section { padding: 88px 0; }
.section.alt { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section-head .kicker {
  display: inline-block; font-size: 13px; font-weight: 700;
  color: var(--primary); letter-spacing: 2px; margin-bottom: 12px;
}
.section-head h2 { font-size: 36px; font-weight: 800; line-height: 1.3; margin-bottom: 14px; }
.section-head p { color: var(--ink-2); font-size: 17px; }

/* ---------- 功能卡片 ---------- */
.feature-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.feature-card {
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px;
  transition: transform .18s, box-shadow .18s;
}
.feature-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.feature-icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
/* 功能图标 = 内联 SVG，多彩配色（同插件卡风格，每图标独立色相）；
   尺寸以 HTML width/height 属性为主，此处为样式层兜底 [AI 2026-10-08] */
.feature-icon svg { width: 28px; height: 28px; display: block; }
.feature-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 14.5px; color: var(--ink-2); }

/* ---------- 插件专区（浅色青绿渐变，避免深色块被误认为页脚） ---------- */
.plugin-section {
  background:
    radial-gradient(ellipse 90% 70% at 50% 0%, rgba(14, 148, 136, .08), transparent),
    linear-gradient(180deg, #effaf8 0%, #f6fbfa 60%, #ffffff 100%);
  padding: 96px 0;
  border-top: 1px solid var(--line);
}
.plugin-section .section-head .kicker { color: var(--primary); }
.plugin-section .section-head p { color: var(--ink-2); }
.plugin-points {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  margin-bottom: 64px;
}
.plugin-points.cols3 { grid-template-columns: repeat(3, 1fr); margin-bottom: 0; }
.plugin-point {
  background: #ffffff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px;
  box-shadow: var(--shadow);
}
.plugin-point .num {
  display: inline-block;
  font-size: 12px; font-weight: 800; color: var(--primary-dark);
  background: var(--primary-light);
  padding: 3px 10px; border-radius: 999px;
  letter-spacing: 1px; margin-bottom: 12px;
}
.plugin-point h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.plugin-point p { font-size: 13.5px; color: var(--ink-2); line-height: 1.65; }
.plugin-point p b { color: var(--ink); }
.plugin-shots {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
  margin-bottom: 48px;
}
.plugin-shot {
  border-radius: 12px; overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
  background: #fff;
  transition: transform .2s;
}
.plugin-shot:hover { transform: translateY(-4px); }
.plugin-shot img { cursor: zoom-in; }

/* ---------- 图片灯箱（点击放大） ---------- */
.lightbox {
  display: none;
  position: fixed; inset: 0; z-index: 999;
  background: rgba(10, 18, 26, .82);
  backdrop-filter: blur(4px);
  align-items: center; justify-content: center;
  padding: 32px; cursor: zoom-out;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: 94vw; max-height: 90vh;
  border-radius: 10px;
  box-shadow: 0 32px 96px rgba(0, 0, 0, .6);
  cursor: default;
}
.lightbox .lb-close {
  position: absolute; top: 20px; right: 28px;
  font-size: 34px; line-height: 1; color: #fff;
  cursor: pointer; user-select: none;
  opacity: .75; transition: opacity .15s;
}
.lightbox .lb-close:hover { opacity: 1; }
.lightbox .lb-caption {
  position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
  color: rgba(255, 255, 255, .85); font-size: 14px;
  background: rgba(0, 0, 0, .35); padding: 6px 18px; border-radius: 999px;
}
.plugin-shot figcaption {
  background: #ffffff;
  padding: 14px 20px; font-size: 13.5px; color: var(--ink-2);
  border-top: 1px solid var(--line);
}
.plugin-shot figcaption b { color: var(--ink); }
.plugin-dev {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  background: linear-gradient(90deg, rgba(14, 148, 136, .10), rgba(14, 148, 136, .04));
  border: 1px solid rgba(14, 148, 136, .30);
  border-radius: var(--radius); padding: 28px 32px;
}
.plugin-dev h3 { font-size: 19px; margin-bottom: 6px; }
.plugin-dev p { font-size: 14.5px; color: var(--ink-2); }
.btn-dev {
  background: var(--primary); color: #fff; font-weight: 700;
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(14, 148, 136, .35);
}
.btn-dev:hover { background: var(--primary-dark); transform: translateY(-1px); }

/* ---------- 对比表 ---------- */
.compare-table {
  width: 100%; border-collapse: collapse;
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow);
}
.compare-table th, .compare-table td {
  padding: 16px 20px; text-align: left;
  border-bottom: 1px solid var(--line); font-size: 15px;
}
.compare-table tr:last-child td { border-bottom: none; }
.compare-table thead th {
  background: var(--bg-soft); font-weight: 700; font-size: 14px;
}
.compare-table td:first-child { color: var(--ink-2); width: 40%; }
.compare-table .yes { color: var(--primary); font-weight: 700; }
.compare-table .no { color: #c1c8d2; }

/* ---------- CTA ---------- */
.cta {
  text-align: center; padding: 88px 0;
  background:
    radial-gradient(ellipse 70% 90% at 50% 110%, rgba(14, 148, 136, .12), transparent),
    var(--bg-soft);
}
.cta h2 { font-size: 34px; font-weight: 800; margin-bottom: 14px; }
.cta p { color: var(--ink-2); margin-bottom: 32px; }

/* ---------- 页脚 ---------- */
.footer {
  background: #101820; color: #93a1ad;
  padding: 56px 0 32px; font-size: 14px;
}
.footer-inner {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
  padding-bottom: 40px; border-bottom: 1px solid #22303a;
}
.footer h4 { color: #e8eef2; font-size: 14px; margin-bottom: 16px; }
.footer-col a { display: block; color: #93a1ad; margin-bottom: 10px; transition: color .15s; }
.footer-col a:hover { color: #2dd4bf; }
.footer-brand p { margin-top: 12px; line-height: 1.7; max-width: 300px; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 24px; font-size: 12.5px; color: #5c6b76;
}

/* ---------- 插件广场 ---------- */
.plugin-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.plugin-card {
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px;
  display: flex; flex-direction: column;
  transition: transform .18s, box-shadow .18s;
}
.plugin-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
/* 插件卡图标 = 插件真身 plugin.json 的内联 SVG（2026-10-08 弃用 emoji：🧮 在部分
   Windows 字体下缺字形渲染成空方框；SVG 与客户端内显示完全一致）[AI修复] */
.plugin-card .p-icon { height: 34px; margin-bottom: 14px; display: flex; align-items: flex-end; }
.plugin-card .p-icon svg { width: 32px; height: 32px; display: block; }
.plugin-card h3 { font-size: 15.5px; font-weight: 700; margin-bottom: 6px; }
.plugin-card .p-desc { font-size: 13px; color: var(--ink-2); flex: 1; line-height: 1.6; }
.plugin-tags { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.p-tag {
  font-size: 11.5px; font-weight: 600; padding: 3px 10px; border-radius: 999px;
  background: var(--bg-soft); color: var(--ink-2);
}
.p-tag.hot { background: var(--primary-light); color: var(--primary-dark); }
.gate-note {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--primary-light); border: 1px solid rgba(14, 148, 136, .25);
  border-radius: var(--radius); padding: 22px 26px;
  font-size: 14px; color: var(--ink-2);
}
.gate-note b { color: var(--ink); }

/* ---------- 教程页（doc 布局） ---------- */
.doc-layout {
  display: grid; grid-template-columns: 240px 1fr; gap: 48px;
  align-items: start; padding: 48px 0 88px;
}
.doc-toc {
  position: sticky; top: 88px;
  border-left: 2px solid var(--line);
  padding-left: 18px;
  font-size: 13.5px;
}
.doc-toc .toc-title { font-weight: 700; color: var(--ink); margin-bottom: 12px; }
.doc-toc a {
  display: block; color: var(--ink-3); padding: 5px 0;
  transition: color .15s;
}
.doc-toc a:hover { color: var(--primary); }
.doc-body { max-width: 800px; font-size: 15px; }
.doc-body h1 { font-size: 34px; font-weight: 800; margin-bottom: 12px; }
.doc-body .doc-lead { color: var(--ink-2); margin-bottom: 40px; }
.doc-body h2 {
  font-size: 24px; font-weight: 700; margin: 56px 0 16px;
  padding-top: 24px; border-top: 1px solid var(--line);
  scroll-margin-top: 84px;
}
.doc-body h3 { font-size: 17.5px; font-weight: 700; margin: 32px 0 12px; scroll-margin-top: 84px; }
.doc-body p { color: var(--ink-2); margin-bottom: 14px; }
.doc-body ul, .doc-body ol { color: var(--ink-2); margin: 0 0 14px 22px; }
.doc-body li { margin-bottom: 6px; }
.doc-body code {
  background: var(--bg-soft); border: 1px solid var(--line);
  padding: 1px 6px; border-radius: 5px;
  font-family: Consolas, "Courier New", monospace; font-size: 13px; color: #c2452d;
}
.codeblock {
  background: #101820; color: #d7e2ea;
  border-radius: 10px; padding: 18px 22px;
  overflow-x: auto; margin: 16px 0 22px;
  font-family: Consolas, "Courier New", monospace; font-size: 13.5px; line-height: 1.65;
}
.codeblock .cmt { color: #6d8494; }
.codeblock .str { color: #7dd3a8; }
.doc-tip {
  background: var(--primary-light); border-left: 3px solid var(--primary);
  border-radius: 0 8px 8px 0; padding: 14px 18px;
  font-size: 14px; color: var(--ink-2); margin: 16px 0 22px;
}
.doc-tip b { color: var(--ink); }
.doc-table { width: 100%; border-collapse: collapse; margin: 16px 0 22px; font-size: 14px; }
.doc-table th, .doc-table td {
  border: 1px solid var(--line); padding: 10px 14px; text-align: left;
}
.doc-table th { background: var(--bg-soft); font-weight: 600; }
.doc-table td { color: var(--ink-2); }
.doc-table td:first-child { color: var(--ink); white-space: nowrap; }

/* ---------- 价格页 ---------- */
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; max-width: 860px; margin: 0 auto 64px; }
.plan-card {
  background: var(--bg); border: 1px solid var(--line); border-radius: 16px;
  padding: 36px; position: relative;
}
.plan-card.pro {
  border: 2px solid var(--primary);
  box-shadow: var(--shadow-lg);
}
.plan-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: #fff;
  font-size: 12px; font-weight: 700; letter-spacing: 1px;
  padding: 5px 18px; border-radius: 999px; white-space: nowrap;
}
.plan-card h3 { font-size: 19px; margin-bottom: 8px; }
.plan-price { font-size: 40px; font-weight: 800; margin: 14px 0 4px; }
.plan-price small { font-size: 14px; font-weight: 400; color: var(--ink-3); }
.plan-sub { font-size: 13.5px; color: var(--ink-3); margin-bottom: 24px; }
.plan-feats { list-style: none; margin-bottom: 28px; }
.plan-feats li {
  font-size: 14.5px; color: var(--ink-2); padding: 8px 0 8px 26px; position: relative;
}
.plan-feats li::before { content: "✓"; position: absolute; left: 0; color: var(--primary); font-weight: 700; }
.plan-feats li.na { color: var(--ink-3); }
.plan-feats li.na::before { content: "—"; color: #c1c8d2; }
.plan-card .btn { width: 100%; justify-content: center; }
.policy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.policy-card {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; font-size: 13.5px; color: var(--ink-2);
}
.policy-card b { display: block; font-size: 15px; color: var(--ink); margin-bottom: 8px; }

/* ---------- 账号中心 ---------- */
.auth-wrap { max-width: 440px; margin: 0 auto; padding: 72px 24px 96px; }
.auth-card {
  background: var(--bg); border: 1px solid var(--line); border-radius: 16px;
  box-shadow: var(--shadow); padding: 36px;
}
.auth-tabs { display: flex; margin-bottom: 28px; border-bottom: 1px solid var(--line); }
.auth-tab {
  flex: 1; text-align: center; padding: 12px 0; cursor: pointer;
  font-size: 15px; font-weight: 600; color: var(--ink-3);
  border-bottom: 2px solid transparent; margin-bottom: -1px;
  transition: color .15s, border-color .15s;
}
.auth-tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.auth-field { margin-bottom: 18px; }
.auth-field label { display: block; font-size: 13.5px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.auth-field input {
  width: 100%; padding: 11px 14px;
  border: 1px solid var(--line); border-radius: 9px;
  font-size: 14.5px; outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.auth-field input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 148, 136, .12);
}
.auth-field .hint { font-size: 12px; color: var(--ink-3); margin-top: 5px; }
.auth-card .btn { width: 100%; justify-content: center; margin-top: 6px; }
.auth-foot { text-align: center; font-size: 13px; color: var(--ink-3); margin-top: 18px; }
.auth-panel { display: none; }
.auth-panel.active { display: block; }

/* ---------- 下载页 ---------- */
.dl-hero { padding: 64px 0 48px; text-align: center; }
.dl-hero h1 { font-size: 40px; font-weight: 800; margin-bottom: 12px; }
.dl-hero p { color: var(--ink-2); }
.dl-card {
  max-width: 720px; margin: 0 auto;
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 36px 40px; text-align: left;
}
.dl-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; padding-bottom: 24px; border-bottom: 1px solid var(--line);
  margin-bottom: 24px;
}
.dl-version { font-size: 26px; font-weight: 800; color: var(--ink); }
.dl-meta { font-size: 13.5px; color: var(--ink-3); margin-top: 4px; }
.dl-req { font-size: 14px; color: var(--ink-2); }
.dl-req li { margin-bottom: 6px; margin-left: 18px; }
.changelog-item { padding: 16px 0; border-bottom: 1px dashed var(--line); }
.changelog-item:last-child { border-bottom: none; }
.changelog-item b { color: var(--ink); }
.changelog-item ul { margin: 8px 0 0 18px; font-size: 14px; color: var(--ink-2); }
.changelog-item li { margin-bottom: 4px; }

/* ---------- 帮助页 ---------- */
.faq-item {
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius); margin-bottom: 14px; overflow: hidden;
}
.faq-item summary {
  padding: 18px 24px; cursor: pointer; font-weight: 600; font-size: 15.5px;
  list-style: none; display: flex; justify-content: space-between; align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--primary); font-size: 20px; font-weight: 400; }
.faq-item[open] summary::after { content: "−"; }
.faq-item .faq-body { padding: 0 24px 20px; color: var(--ink-2); font-size: 14.5px; }
.tutorial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.tutorial-card {
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px;
}
.tutorial-card .step { font-size: 12px; font-weight: 800; color: var(--primary); letter-spacing: 1px; }
.tutorial-card h3 { font-size: 16px; margin: 8px 0; }
.tutorial-card p { font-size: 13.5px; color: var(--ink-2); }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .hero h1 { font-size: 38px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .plugin-points { grid-template-columns: repeat(2, 1fr); }
  .plugin-points.cols3 { grid-template-columns: 1fr; }
  .plugin-shots { grid-template-columns: 1fr; }
  .plugin-dev { flex-direction: column; text-align: center; }
  .trust-inner { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .tutorial-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .plugin-grid { grid-template-columns: repeat(2, 1fr); }
  .doc-layout { grid-template-columns: 1fr; }
  .doc-toc { position: static; border-left: none; padding-left: 0; margin-bottom: 32px; }
  .plans { grid-template-columns: 1fr; }
  .policy-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .hero h1 { font-size: 30px; }
  .feature-grid { grid-template-columns: 1fr; }
  .plugin-points { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: center; }
  .dl-row { flex-direction: column; text-align: center; }
}