/* ===================================================================
   public/home/home.css — 门户首页（PC / 移动自适应 landing）
   -------------------------------------------------------------------
   2026-09-29 重新设计。改动要点与理由：
     ① 内容对齐真实能力：原首页宣称「四大板块」且漏掉「智能扫描」，
        实际用户中心是五大板块（收档 / 扫描 / 文件转PDF / PDF转文件 / 图片工具）。
        板块数、工具名全部按代码里的真实路由重列，不再有对不上的宣传。
     ② 首屏改成「文案 + 表单预览卡」两栏：给访客一个「这东西长什么样」的
        直观印象，纯 CSS 绘制，不依赖图片，也不影响首屏加载。
     ③ 新增「全部工具清单」区（静态 HTML，利于搜索引擎抓取工具名长尾词）、
        「会员与额度」区、「常见问题」区（原生 details，无需 JS）。
     ④ 站点名 / SEO 文案 / 页脚备案由后台「站点设置」下发，
        模板里写 {{key|默认值}}，服务端渲染时替换（见 server.js renderHomePage）。

   配色规范 v2（全站统一，见 site.css）：
     主色 雾松绿 #8FB8A8 · 可用档 #6E9C89 · 加深档 #5F8B79 · 深底 #4F7A68
     辅色 雾蓝   #9EB6C8 · 深档 #46697E
     底色 奶白   #F9F8F5 ｜ 中性 墨 #2E3A35 · 次 #6E7A74 · 弱 #9AA49E · 线 #E8E5DE
     语义 成功 #10B981 · 危险 #EF4444 · 警告 #F59E0B（不随品牌色变化）
   =================================================================== */

:root {
  /* 品牌 */
  --h-brand: #8fb8a8;
  --h-primary: #6e9c89;
  --h-primary-dark: #5f8b79;
  --h-primary-deep: #4f7a68;
  --h-primary-soft: #eaf2ee;
  --h-primary-border: #c7dbd2;
  --h-accent: #9eb6c8;
  --h-accent-deep: #46697e;
  --h-accent-soft: #e3ebf1;
  --h-accent-border: #c2d3de;
  /* 中性 */
  --h-cream: #f9f8f5;
  --h-ink: #2e3a35;
  --h-ink-strong: #26332e;
  --h-sub: #6e7a74;
  --h-mute: #9aa49e;
  --h-line: #e8e5de;
  --h-line-soft: #efece6;
  /* 渐变与阴影 */
  --h-grad: linear-gradient(135deg, #8fb8a8, #6e9c89);
  --h-grad-deep: linear-gradient(118deg, #4f7a68 0%, #5f8b79 48%, #6e9c89 100%);
  --h-accent-grad: linear-gradient(135deg, #9eb6c8, #7e9db4);
  --h-shadow-sm: 0 2px 10px rgba(38, 51, 46, .05);
  --h-shadow: 0 6px 22px rgba(38, 51, 46, .07);
  --h-shadow-lg: 0 18px 44px rgba(79, 122, 104, .14);
  /* 布局 */
  --h-maxw: 1200px;
  --h-gutter: clamp(16px, 3vw, 32px);
  --h-radius: 16px;
  --h-radius-sm: 10px;
  /* 字体 */
  --h-font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }

body {
  font-family: var(--h-font);
  color: var(--h-ink);
  background: var(--h-cream);
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; }
.hidden { display: none !important; }

/* 无障碍：键盘用户从顶部跳到正文 */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: #fff; color: var(--h-primary-dark);
  padding: 10px 18px; border-radius: 0 0 10px 0; font-size: 14px; font-weight: 600;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 3px solid rgba(110, 156, 137, .55);
  outline-offset: 2px;
  border-radius: 6px;
}

/* 尊重系统「减少动态效果」 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}

/* ===================================================================
   顶栏（底色/留白由 site.css 统一，这里只管内部排版）
   =================================================================== */
.topbar { position: sticky; top: 0; z-index: 60; }
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 18px; min-height: 58px;
}
.brand {
  display: flex; align-items: center; gap: 9px;
  font-size: 18px; font-weight: 700; letter-spacing: .2px; color: #fff;
  flex: 0 0 auto;
}
.brand .site-logo { width: 26px; height: 26px; border-radius: 8px; }

.nav { display: none; gap: 26px; font-size: 14px; font-weight: 500; }
.nav a { opacity: .88; transition: opacity .15s; position: relative; padding: 4px 0; }
.nav a:hover { opacity: 1; }
.nav a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -2px; height: 2px;
  background: rgba(255, 255, 255, .9); border-radius: 2px; transition: right .18s;
}
.nav a:hover::after { right: 0; }

.topbar-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.btn-ghost {
  color: #fff; font-size: 14px; font-weight: 500;
  padding: 8px 16px; border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, .55); transition: all .15s;
  white-space: nowrap;
}
.btn-ghost:hover { background: rgba(255, 255, 255, .14); border-color: rgba(255, 255, 255, .85); }
.btn-solid {
  background: #fff; color: var(--h-primary-dark); font-size: 14px; font-weight: 600;
  padding: 8px 18px; border-radius: 8px; white-space: nowrap;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .12); transition: transform .12s, box-shadow .12s;
}
.btn-solid:hover { transform: translateY(-1px); box-shadow: 0 5px 14px rgba(0, 0, 0, .18); }

/* ===================================================================
   Hero
   =================================================================== */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1000px 460px at 12% -10%, rgba(110, 156, 137, .18), transparent 62%),
    radial-gradient(880px 420px at 92% 8%, rgba(158, 182, 200, .20), transparent 60%),
    linear-gradient(170deg, #f3f7f4 0%, #eef4f2 42%, #f8f6f1 100%);
  padding: clamp(40px, 6vw, 76px) var(--h-gutter) clamp(46px, 6vw, 84px);
}
.hero-grid {
  max-width: var(--h-maxw); margin: 0 auto;
  display: grid; grid-template-columns: 1fr; gap: clamp(30px, 4vw, 56px);
  align-items: center;
}
.hero-copy { position: relative; z-index: 1; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13px; color: var(--h-primary-dark); background: rgba(255, 255, 255, .9);
  border: 1px solid var(--h-primary-border); padding: 6px 15px; border-radius: 999px;
  margin-bottom: 20px; box-shadow: var(--h-shadow-sm);
}
.hero h1 {
  font-size: clamp(29px, 4.6vw, 50px); line-height: 1.16; margin: 0 0 16px;
  color: var(--h-ink-strong); font-weight: 800; letter-spacing: -.02em;
}
.hero-sub {
  font-size: clamp(15px, 1.5vw, 17px); color: #4f5b55; margin: 0 0 26px;
  max-width: 34em;
}
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, var(--h-primary), var(--h-primary-dark)); color: #fff;
  font-size: 15px; font-weight: 600; padding: 14px 28px; border-radius: 11px; border: none; cursor: pointer;
  box-shadow: 0 8px 22px rgba(110, 156, 137, .34); transition: transform .15s, box-shadow .15s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(110, 156, 137, .42); }
.btn-primary::after { content: "→"; transition: transform .15s; }
.btn-primary:hover::after { transform: translateX(3px); }
.btn-outline {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; color: var(--h-primary-dark); font-size: 15px; font-weight: 600;
  padding: 14px 26px; border-radius: 11px; border: 1.5px solid var(--h-primary-border); cursor: pointer;
  transition: all .15s;
}
.btn-outline:hover { background: var(--h-primary-soft); border-color: var(--h-primary); transform: translateY(-1px); }

/* 首屏能力速览 */
.hero-stats {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px; margin: 30px 0 0; max-width: 520px;
}
.stat {
  background: rgba(255, 255, 255, .82); border: 1px solid rgba(199, 219, 210, .7);
  border-radius: 13px; padding: 13px 16px; box-shadow: var(--h-shadow-sm);
}
.stat-num {
  font-size: 21px; font-weight: 800; color: var(--h-primary-deep); line-height: 1.2;
  letter-spacing: -.01em;
}
.stat-num small { font-size: 12px; font-weight: 700; margin-left: 2px; }
.stat-label { font-size: 12.5px; color: var(--h-sub); margin-top: 2px; }

/* 凭表单码直接填写 */
.quick-fill {
  margin: 26px 0 0; max-width: 540px;
  background: rgba(255, 255, 255, .96); border-radius: var(--h-radius); padding: 18px 20px;
  box-shadow: var(--h-shadow); border: 1px solid rgba(199, 219, 210, .75);
}
.qf-title {
  font-size: 13.5px; font-weight: 700; color: var(--h-accent-deep);
  margin-bottom: 11px; display: flex; align-items: center; gap: 7px;
}
.qf-row { display: flex; gap: 9px; }
.quick-fill input {
  flex: 1 1 auto; min-width: 0; padding: 12px 14px; font-size: 15px; letter-spacing: 1px;
  border: 1.5px solid var(--h-line); border-radius: var(--h-radius-sm);
  background: #fff; transition: border-color .15s, box-shadow .15s; font-family: inherit;
}
.quick-fill input:focus { outline: none; border-color: var(--h-primary); box-shadow: 0 0 0 3px rgba(110, 156, 137, .14); }
.quick-fill input::placeholder { color: var(--h-mute); letter-spacing: 0; }
.quick-fill button {
  flex: 0 0 auto; background: linear-gradient(135deg, var(--h-primary), var(--h-primary-dark));
  color: #fff; border: none; border-radius: var(--h-radius-sm);
  padding: 0 22px; font-size: 15px; font-weight: 600; cursor: pointer; white-space: nowrap;
  font-family: inherit; transition: transform .12s, box-shadow .12s;
}
.quick-fill button:hover { transform: translateY(-1px); box-shadow: 0 6px 14px rgba(110, 156, 137, .3); }
.qf-hint { font-size: 12px; color: var(--h-mute); margin-top: 9px; line-height: 1.55; }

/* --------- 首屏右侧：表单预览卡（纯 CSS 绘制的产品示意） --------- */
.hero-preview { position: relative; z-index: 1; }
.pv-card {
  background: #fff; border-radius: 20px; border: 1px solid var(--h-line);
  box-shadow: var(--h-shadow-lg); overflow: hidden; max-width: 430px; margin: 0 auto;
}
.pv-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 11px 15px; background: #f6f5f1; border-bottom: 1px solid var(--h-line);
}
.pv-dot { width: 9px; height: 9px; border-radius: 50%; background: #d9d5cc; }
.pv-dot.is-red { background: #e8b4ae; }
.pv-dot.is-amber { background: #e6cf9f; }
.pv-dot.is-green { background: #a9c9b7; }
.pv-bar-title { margin-left: 6px; font-size: 12px; color: var(--h-mute); }
.pv-body { padding: 18px; }
.pv-head { display: flex; align-items: center; gap: 10px; margin-bottom: 15px; }
.pv-head-ico {
  width: 36px; height: 36px; border-radius: 11px; flex: 0 0 auto;
  background: var(--h-grad); display: flex; align-items: center; justify-content: center;
  font-size: 18px;
}
.pv-head-t { font-size: 14.5px; font-weight: 700; color: var(--h-ink-strong); }
.pv-head-s { font-size: 11.5px; color: var(--h-mute); }
.pv-field { margin-bottom: 11px; }
.pv-label { font-size: 11.5px; color: var(--h-sub); margin-bottom: 4px; font-weight: 600; }
.pv-input {
  border: 1.5px solid var(--h-line); border-radius: 9px; padding: 9px 11px;
  font-size: 12.5px; color: #55605a; background: #fdfcf9; min-height: 36px;
  display: flex; align-items: center;
}
.pv-input.is-focus { border-color: var(--h-primary); background: #fff; box-shadow: 0 0 0 3px rgba(110, 156, 137, .12); }
.pv-caret { display: inline-block; width: 1.5px; height: 14px; background: var(--h-primary); margin-left: 2px; animation: pvBlink 1.1s steps(1) infinite; }
@keyframes pvBlink { 50% { opacity: 0; } }
.pv-sign {
  border: 1.5px dashed var(--h-primary-border); border-radius: 9px;
  background: #fbfdfc; height: 72px; display: flex; align-items: center; justify-content: center;
}
.pv-sign svg { width: 62%; height: auto; }
.pv-actions { display: flex; align-items: center; justify-content: space-between; margin-top: 14px; }
.pv-btn {
  background: var(--h-grad); color: #fff; font-size: 13px; font-weight: 700;
  padding: 9px 20px; border-radius: 9px; border: none;
}
.pv-toast {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11.5px; font-weight: 600; color: #0f7a5a;
  background: #e6f6ee; border: 1px solid #bfe6d3; padding: 5px 11px; border-radius: 999px;
}
/* 悬浮小标签，暗示「多端可用」 */
.pv-float {
  position: absolute; background: #fff; border: 1px solid var(--h-line);
  border-radius: 12px; padding: 8px 13px; font-size: 12px; font-weight: 600; color: var(--h-primary-deep);
  box-shadow: var(--h-shadow); display: none; align-items: center; gap: 6px;
}
.pv-float.f1 { top: -14px; right: -8px; }
.pv-float.f2 { bottom: -14px; left: -10px; color: var(--h-accent-deep); }

/* ===================================================================
   区块通用
   =================================================================== */
.section { max-width: var(--h-maxw); margin: 0 auto; padding: clamp(48px, 6vw, 82px) var(--h-gutter); }
.section.is-white { background: #fff; max-width: none; }
.section.is-white > .section-inner { max-width: var(--h-maxw); margin: 0 auto; }
.section-head { text-align: center; margin-bottom: clamp(28px, 4vw, 48px); }
.eyebrow {
  display: inline-block; font-size: 12px; font-weight: 800; letter-spacing: .14em;
  text-transform: uppercase; color: var(--h-primary); margin-bottom: 10px;
}
.section-head h2 {
  font-size: clamp(22px, 3vw, 32px); margin: 0 0 10px; color: var(--h-ink-strong);
  font-weight: 800; letter-spacing: -.015em;
}
.section-head p { font-size: 15px; color: var(--h-sub); margin: 0 auto; max-width: 46em; }

/* ===================================================================
   五大板块
   =================================================================== */
.cats { display: grid; grid-template-columns: 1fr; gap: 18px; }
.catcard {
  background: #fff; border: 1px solid var(--h-line); border-radius: 18px; padding: 24px;
  box-shadow: var(--h-shadow-sm); display: flex; gap: 16px; align-items: flex-start;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.catcard:hover { transform: translateY(-4px); box-shadow: 0 16px 36px rgba(110, 156, 137, .14); border-color: var(--h-primary-border); }
.cico {
  flex: 0 0 auto; width: 52px; height: 52px; border-radius: 15px;
  display: flex; align-items: center; justify-content: center; font-size: 25px;
  background: linear-gradient(135deg, var(--h-primary-soft), var(--h-accent-soft));
  box-shadow: inset 0 0 0 1px rgba(110, 156, 137, .08);
}
.cbody { min-width: 0; flex: 1 1 auto; }
.ctitle { font-size: 17.5px; margin: 2px 0 5px; color: var(--h-ink-strong); font-weight: 800; letter-spacing: -.01em; }
.cdesc { font-size: 13.5px; color: var(--h-sub); margin: 0 0 13px; }
.chips { display: flex; flex-wrap: wrap; gap: 7px; }
.chip {
  font-size: 12px; padding: 4px 11px; border-radius: 999px;
  background: var(--h-primary-soft); color: var(--h-primary-dark);
  border: 1px solid var(--h-primary-border); white-space: nowrap;
}
.cgo { display: inline-flex; align-items: center; gap: 5px; margin-top: 15px; font-size: 13.5px; font-weight: 700; color: var(--h-primary); }
.cgo::after { content: "→"; transition: transform .15s; }
.catcard:hover .cgo::after { transform: translateX(3px); }

/* 辅色（雾蓝）板块：让辅色承担一半栏目标识 */
.catcard.is-accent .cico { background: var(--h-accent-grad); box-shadow: inset 0 0 0 1px rgba(70, 105, 126, .1); }
.catcard.is-accent:hover { border-color: var(--h-accent-border); box-shadow: 0 16px 36px rgba(158, 182, 200, .24); }
.catcard.is-accent .chip { background: var(--h-accent-soft); color: var(--h-accent-deep); border-color: var(--h-accent-border); }
.catcard.is-accent .cgo { color: var(--h-accent-deep); }

/* ===================================================================
   全部工具清单（静态 HTML，便于搜索引擎抓长尾词）
   =================================================================== */
.tools { display: grid; grid-template-columns: 1fr; gap: 16px; }
.toolcol {
  background: #fff; border: 1px solid var(--h-line); border-radius: var(--h-radius);
  padding: 20px 22px; box-shadow: var(--h-shadow-sm);
}
.toolcol-head {
  display: flex; align-items: center; gap: 9px; padding-bottom: 12px; margin-bottom: 12px;
  border-bottom: 1px dashed var(--h-line); font-size: 15px; font-weight: 800; color: var(--h-ink-strong);
}
.toolcol-head .tcount {
  margin-left: auto; font-size: 11.5px; font-weight: 700; color: var(--h-primary-dark);
  background: var(--h-primary-soft); border: 1px solid var(--h-primary-border);
  padding: 2px 9px; border-radius: 999px;
}
.toollist { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; }
.toollist li {
  display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: #4a554f;
}
.toollist li::before {
  content: ""; flex: 0 0 auto; width: 6px; height: 6px; border-radius: 50%;
  background: var(--h-primary-border);
}
.toolcol.is-accent .toollist li::before { background: var(--h-accent-border); }
.toolcol.is-accent .toolcol-head .tcount { color: var(--h-accent-deep); background: var(--h-accent-soft); border-color: var(--h-accent-border); }
.tools-note {
  margin-top: 18px; text-align: center; font-size: 13px; color: var(--h-mute);
}
.tools-note a { color: var(--h-primary-dark); font-weight: 700; }

/* ===================================================================
   功能亮点
   =================================================================== */
.features { display: grid; grid-template-columns: 1fr; gap: 18px; }
.fcard {
  background: #fff; border-radius: var(--h-radius); padding: 24px;
  box-shadow: var(--h-shadow-sm); border: 1px solid var(--h-line);
  display: flex; flex-direction: column; transition: transform .2s, box-shadow .2s, border-color .2s;
}
.fcard:hover { transform: translateY(-4px); box-shadow: 0 14px 32px rgba(110, 156, 137, .12); border-color: var(--h-primary-border); }
.fcard .ico {
  width: 50px; height: 50px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
  font-size: 24px; background: linear-gradient(135deg, var(--h-primary-soft), var(--h-accent-soft));
  margin-bottom: 15px; box-shadow: inset 0 0 0 1px rgba(110, 156, 137, .08);
}
.fcard h3 { font-size: 16.5px; margin: 0 0 7px; color: var(--h-ink-strong); font-weight: 700; }
.fcard p { font-size: 13.8px; color: var(--h-sub); margin: 0 0 14px; flex: 1 1 auto; }
.flink { font-size: 13.5px; color: var(--h-primary); font-weight: 700; display: inline-flex; align-items: center; gap: 4px; }
.flink::after { content: "→"; transition: transform .15s; }
.fcard:hover .flink::after { transform: translateX(3px); }

/* ===================================================================
   使用流程
   =================================================================== */
.steps { display: grid; grid-template-columns: 1fr; gap: 18px; }
.step {
  background: #fff; border-radius: var(--h-radius); padding: 24px;
  display: flex; gap: 16px; align-items: flex-start;
  box-shadow: var(--h-shadow-sm); border: 1px solid var(--h-line);
  position: relative; overflow: hidden;
}
.step::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--h-grad); opacity: .8;
}
.step .num {
  flex: 0 0 auto; width: 42px; height: 42px; border-radius: 50%;
  background: linear-gradient(135deg, var(--h-primary), var(--h-primary-dark)); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 17px; font-weight: 800;
  box-shadow: 0 4px 10px rgba(110, 156, 137, .24);
}
.step h3 { font-size: 15.5px; margin: 2px 0 7px; color: var(--h-ink-strong); font-weight: 700; }
.step p { font-size: 13.8px; color: var(--h-sub); margin: 0; }
.step .slinks { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 8px; }
.step .slinks a {
  font-size: 12.5px; font-weight: 700; color: var(--h-primary-dark);
  background: var(--h-primary-soft); border: 1px solid var(--h-primary-border);
  padding: 3px 11px; border-radius: 999px;
}

/* ===================================================================
   会员与额度
   =================================================================== */
.plans { display: grid; grid-template-columns: 1fr; gap: 18px; }
.plan {
  background: #fff; border: 1px solid var(--h-line); border-radius: 18px; padding: 24px;
  box-shadow: var(--h-shadow-sm); display: flex; flex-direction: column;
}
.plan.is-vip {
  border-color: var(--h-primary-border);
  background: linear-gradient(180deg, #fff 0%, #f6faf8 100%);
  box-shadow: 0 8px 26px rgba(110, 156, 137, .12);
}
.plan-head { display: flex; align-items: center; gap: 9px; margin-bottom: 6px; }
.plan-head h3 { font-size: 17px; margin: 0; color: var(--h-ink-strong); font-weight: 800; }
.ptag {
  font-size: 11.5px; font-weight: 700; padding: 2px 9px; border-radius: 999px;
  background: var(--h-primary-soft); color: var(--h-primary-dark); border: 1px solid var(--h-primary-border);
}
.ptag.is-vip { background: linear-gradient(135deg, #f7e6b8, #e9cf8a); color: #7a5a12; border-color: #e3c77d; }
.plan-sub { font-size: 13px; color: var(--h-sub); margin: 0 0 14px; }
.plist { list-style: none; margin: 0 0 18px; padding: 0; display: grid; gap: 9px; flex: 1 1 auto; }
.plist li { display: flex; gap: 9px; font-size: 13.5px; color: #4a554f; align-items: flex-start; }
.plist .pi {
  flex: 0 0 auto; width: 17px; height: 17px; border-radius: 50%; margin-top: 3px;
  background: var(--h-primary-soft); color: var(--h-primary-dark);
  display: inline-flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 800;
}
.plan.is-vip .plist .pi { background: var(--h-primary); color: #fff; }
.plan-cta {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font-size: 14px; font-weight: 700; padding: 11px 20px; border-radius: 11px;
  border: 1.5px solid var(--h-primary); color: var(--h-primary-dark); background: #fff;
  transition: all .15s;
}
.plan-cta:hover { background: var(--h-primary-soft); }
.plan-cta.is-solid {
  background: linear-gradient(135deg, var(--h-primary), var(--h-primary-dark));
  color: #fff; border-color: transparent;
  box-shadow: 0 6px 16px rgba(110, 156, 137, .3);
}
.plan-cta.is-solid:hover { transform: translateY(-1px); }

/* ===================================================================
   常见问题（原生 details，无 JS）
   =================================================================== */
.faq { max-width: 880px; margin: 0 auto; display: grid; gap: 11px; }
.faq details {
  background: #fff; border: 1px solid var(--h-line); border-radius: 13px;
  padding: 0 20px; box-shadow: var(--h-shadow-sm); transition: border-color .15s;
}
.faq details[open] { border-color: var(--h-primary-border); }
.faq summary {
  cursor: pointer; list-style: none; padding: 16px 0; font-size: 14.5px; font-weight: 700;
  color: var(--h-ink-strong); display: flex; align-items: center; gap: 10px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; margin-left: auto; font-size: 19px; font-weight: 700; color: var(--h-primary);
  transition: transform .18s; line-height: 1;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .faq-a {
  font-size: 13.8px; color: var(--h-sub); padding: 0 0 17px; margin: 0;
  border-top: 1px dashed var(--h-line-soft); padding-top: 14px;
}
.faq .faq-a b { color: var(--h-ink-strong); }

/* ===================================================================
   CTA 带
   =================================================================== */
.cta-band {
  position: relative; overflow: hidden; text-align: center;
  background: var(--h-grad-deep); color: #fff;
  padding: clamp(48px, 6vw, 76px) var(--h-gutter);
}
.cta-band::before,
.cta-band::after {
  content: ""; position: absolute; pointer-events: none; border-radius: 50%;
}
.cta-band::before {
  left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 900px; height: 900px;
  background: radial-gradient(circle, rgba(255, 255, 255, .13) 0%, rgba(255, 255, 255, 0) 62%);
}
.cta-band::after {
  right: -120px; bottom: -160px; width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(158, 182, 200, .28) 0%, rgba(158, 182, 200, 0) 70%);
}
.cta-band h2 { position: relative; font-size: clamp(21px, 2.8vw, 28px); margin: 0 0 12px; font-weight: 800; letter-spacing: -.01em; }
.cta-band p { position: relative; font-size: 15px; opacity: .93; margin: 0 auto 26px; max-width: 40em; }
.cta-actions { position: relative; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn-light {
  display: inline-flex; align-items: center; gap: 7px;
  background: #fff; color: var(--h-primary-dark); font-size: 15px; font-weight: 700;
  padding: 14px 30px; border-radius: 11px; border: none; cursor: pointer;
  box-shadow: 0 4px 16px rgba(0, 0, 0, .18); transition: transform .12s, box-shadow .12s;
}
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 9px 24px rgba(0, 0, 0, .22); }
.btn-line {
  display: inline-flex; align-items: center; gap: 7px;
  background: transparent; color: #fff; font-size: 15px; font-weight: 700;
  padding: 14px 26px; border-radius: 11px; border: 1.5px solid rgba(255, 255, 255, .65);
  transition: background .15s;
}
.btn-line:hover { background: rgba(255, 255, 255, .14); }

/* ===================================================================
   页脚
   =================================================================== */
.footer { background: #26332e; color: #9aa49e; padding: 46px var(--h-gutter) 30px; font-size: 13px; }
.f-grid {
  max-width: var(--h-maxw); margin: 0 auto;
  display: grid; grid-template-columns: 1fr; gap: 26px;
  padding-bottom: 26px; border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.f-brand { display: flex; align-items: center; gap: 9px; color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 10px; }
.f-brand .site-logo { width: 24px; height: 24px; border-radius: 7px; }
.f-about { line-height: 1.75; max-width: 30em; }
.f-col h4 { color: #e6e4de; font-size: 13px; font-weight: 700; margin: 0 0 12px; letter-spacing: .04em; }
.f-links { display: grid; gap: 9px; }
.f-links a, .f-about a { color: #cfcdc6; transition: color .15s; }
.f-links a:hover, .f-about a:hover { color: #fff; }
.f-bottom {
  max-width: var(--h-maxw); margin: 20px auto 0;
  display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; justify-content: space-between;
  font-size: 12.5px; color: #8f9a94;
}
.f-bottom a { color: #8f9a94; }
.f-bottom a:hover { color: #cfcdc6; }
.f-icp { display: inline-flex; align-items: center; gap: 6px; }
.f-icp img { width: 14px; height: 14px; opacity: .8; }

/* ===================================================================
   响应式
   =================================================================== */
@media (min-width: 640px) {
  .hero-stats { grid-template-columns: repeat(4, minmax(0, 1fr)); max-width: none; }
  .cats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tools { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .plans { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .f-grid { grid-template-columns: 1.6fr 1fr 1fr; }
}

@media (min-width: 900px) {
  .nav { display: flex; }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .tools { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .hero-grid { grid-template-columns: 1.08fr .92fr; }
  .cats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .features { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .pv-float { display: inline-flex; }
}

@media (min-width: 1200px) {
  .tools { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .features { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* 小屏优化：顶栏不换行、快捷填写按钮占满一行、卡片内边距收紧 */
@media (max-width: 480px) {
  .topbar-inner { gap: 10px; }
  .brand { font-size: 16px; }
  .btn-ghost, .btn-solid { padding: 7px 12px; font-size: 13px; }
  .qf-row { flex-wrap: wrap; }
  .quick-fill button { width: 100%; padding: 12px 20px; }
  .hero-cta > * { flex: 1 1 100%; justify-content: center; }
  .catcard, .fcard, .plan, .toolcol { padding: 18px; }
  .step { padding: 18px; gap: 13px; }
  .step .num { width: 36px; height: 36px; font-size: 15px; }
  .footer { padding-top: 34px; }
}