/* 口袋牛店 niudiancai.cn · 单页官网样式 */
*, *::before, *::after { box-sizing: border-box; }

:root {
  --red: #e8332a;
  --red-dark: #c8231c;
  --red-soft: #fff1f0;
  --ink: #16181d;
  --ink-2: #3b414c;
  --ink-3: #6b7280;
  --line: #e9ebef;
  --bg: #ffffff;
  --bg-2: #f6f7f9;
  --gold: #d99a2b;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(22, 24, 29, .08);
  --shadow-lg: 0 22px 60px rgba(22, 24, 29, .14);
  --maxw: 1180px;
}

html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { line-height: 1.3; margin: 0 0 .5em; font-weight: 800; letter-spacing: -.01em; text-wrap: balance; }
p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; list-style: none; }
code { font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace; }

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 20px; }
.container-narrow { max-width: 860px; }
.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; background: var(--ink); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 999; transition: top .2s; }
.skip-link:focus { top: 12px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 1px solid transparent; border-radius: 999px;
  font-size: 15px; font-weight: 700; padding: 11px 22px; cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px) scale(.99); }
.btn-primary { background: linear-gradient(135deg, var(--red), #ff5a3c); color: #fff; box-shadow: 0 8px 22px rgba(232, 51, 42, .32); }
.btn-primary:hover { background: linear-gradient(135deg, var(--red-dark), var(--red)); box-shadow: 0 12px 28px rgba(232, 51, 42, .42); }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--line); box-shadow: var(--shadow); }
.btn-ghost:hover { border-color: #cfd4dc; }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: #000; }
.btn-lg { padding: 14px 30px; font-size: 17px; }
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-block { width: 100%; }
.btn-wx { background: #07c160; color: #fff; box-shadow: 0 6px 16px rgba(7,193,96,.28); }
.btn-wx:hover { background: #06ad56; }

/* ---------- 顶部客服条 ---------- */
.topbar { background: linear-gradient(90deg, #b81a14, var(--red) 55%, #ff5a3c); color: #fff; font-size: 13.5px; }
.topbar-inner { display: flex; align-items: center; gap: 16px; min-height: 46px; flex-wrap: wrap; padding-block: 6px; }
.topbar-text { margin: 0; display: flex; align-items: center; gap: 8px; font-weight: 700; letter-spacing: .2px; }
.topbar-text .dot { background: #fff; }
.topbar-wx { display: flex; gap: 10px; margin-left: auto; flex-wrap: wrap; }
.wx-chip { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.42); color: #fff; border-radius: 999px; padding: 4px 12px; cursor: pointer; font: inherit; transition: .2s; }
.wx-chip:hover { background: #fff; color: var(--red-dark); }
.wx-chip span { opacity: .8; font-size: 12px; }
.wx-chip strong { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 14px; letter-spacing: .6px; }
.wx-chip em { font-style: normal; font-size: 11.5px; opacity: .75; }
.wx-chip:hover span, .wx-chip:hover em { opacity: 1; }
.wx-chip.done { background: #07c160; border-color: #07c160; color: #fff; }
.wx-chip.done em::after { content: " ✓"; }

/* ---------- 头部 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 90;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 18px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; margin-right: auto; }
.brand img { width: 44px; height: 44px; border-radius: 12px; box-shadow: 0 6px 16px rgba(232,51,42,.28); }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 19px; letter-spacing: .5px; }
.brand-text small { font-size: 12px; color: var(--ink-3); letter-spacing: .3px; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { font-size: 15px; color: var(--ink-2); padding: 8px 12px; border-radius: 8px; font-weight: 600; }
.nav a:hover { color: var(--red); background: var(--red-soft); }
.nav-toggle { display: none; width: 42px; height: 38px; border: 1px solid var(--line); background: #fff; border-radius: 10px; cursor: pointer; padding: 9px 8px; }
.nav-toggle span { display: block; height: 2px; background: var(--ink); border-radius: 2px; margin: 3px 0; transition: .25s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }
.header-wx { margin-right: 2px; }

/* ---------- Hero ---------- */
.hero { background: radial-gradient(1200px 520px at 78% -10%, #fff5f4 0%, rgba(255,255,255,0) 60%), var(--bg); padding: 32px 0 48px; }
.hero-inner { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 56px; align-items: center; }
.badge { display: inline-flex; align-items: center; gap: 8px; background: var(--red-soft); color: var(--red-dark); font-size: 13px; font-weight: 700; padding: 6px 14px; border-radius: 999px; margin-bottom: 14px; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--red); animation: pulse 1.6s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: .35; transform: scale(1.5); } }
.hero h1 { font-size: clamp(34px, 4.6vw, 54px); }
.h1-sub { display: block; font-size: clamp(16px, 1.6vw, 21px); font-weight: 700; color: var(--red); margin-top: 10px; letter-spacing: 0; }
.lead { color: var(--ink-2); font-size: 16.5px; max-width: 640px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 16px 0 18px; }
.trust { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 12px; margin-bottom: 16px; }
.trust li { background: var(--bg-2); border: 1px solid var(--line); border-radius: 14px; padding: 12px 8px; text-align: center; }
.trust strong { display: block; font-size: 22px; color: var(--red); font-weight: 800; }
.trust span { font-size: 12.5px; color: var(--ink-3); }

.wx-card { position: relative; overflow: hidden; background: linear-gradient(135deg, #e8332a, #b81a14); color: #fff; border-radius: var(--radius); padding: 16px 18px 14px; box-shadow: 0 16px 36px rgba(232,51,42,.3); }
.app-spec { margin: 0 0 14px; font-size: 13.5px; line-height: 1.7; color: var(--ink-3); letter-spacing: .2px; }
.app-spec .spec-safe { color: #12b76a; font-weight: 700; white-space: nowrap; }
.wx-card::before { content: "\1F4AC"; position: absolute; right: 4px; bottom: -24px; font-size: 104px; line-height: 1; opacity: .14; }
.wx-title { display: flex; align-items: center; gap: 9px; margin: 0 0 12px; font-size: 13.5px; color: rgba(255,255,255,.9); font-weight: 600; }
.wx-title strong { font-size: 16.5px; color: #fff; letter-spacing: .3px; }
.wx-title em { font-style: normal; margin-left: auto; background: rgba(255,255,255,.2); padding: 3px 10px; border-radius: 999px; font-size: 11.5px; font-weight: 700; }
.wx-badge { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 9px; background: rgba(255,255,255,.22); font-size: 15px; }
.wx-list { display: grid; gap: 10px; position: relative; z-index: 1; }
.wx-item { display: flex; align-items: center; gap: 10px; }
.wx-label { font-size: 12.5px; color: rgba(255,255,255,.82); min-width: 58px; }
.wx-item code { flex: 1; background: rgba(0,0,0,.2); border: 1px dashed rgba(255,255,255,.5); color: #fff; font-size: 18px; font-weight: 800; letter-spacing: 1px; padding: 7px 12px; border-radius: 10px; }
.btn-copy { border: none; background: #fff; color: var(--red-dark); font-size: 13px; font-weight: 800; padding: 8px 16px; border-radius: 999px; cursor: pointer; transition: .2s; box-shadow: 0 4px 12px rgba(0,0,0,.14); }
.btn-copy:hover { transform: translateY(-1px); }
.btn-copy.done { background: #07c160; color: #fff; }
.wx-tip { position: relative; z-index: 1; margin: 12px 0 0; font-size: 12.5px; color: rgba(255,255,255,.86); }

.hero-phone { display: grid; grid-template-columns: minmax(0, 1fr); gap: 20px; justify-items: center; }
.phone {
  position: relative; width: min(300px, 74vw); aspect-ratio: 720 / 1440;
  border-radius: 34px; background: #111; padding: 9px;
  box-shadow: var(--shadow-lg);
  border: 1px solid #2a2d33;
}
.phone::after { content: ""; position: absolute; top: 14px; left: 50%; transform: translateX(-50%); width: 78px; height: 18px; background: #111; border-radius: 12px; z-index: 2; }
.phone img, .phone-shot { width: 100%; height: 100%; object-fit: cover; object-position: top; border-radius: 26px; background: #f2f3f5; }
.phone-alt { width: min(280px, 70vw); }

/* ---------- 通用 section ---------- */
.section { padding: 84px 0; }
.section:nth-of-type(even) { background: var(--bg-2); }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 46px; }
.eyebrow { color: var(--red); font-weight: 800; font-size: 13.5px; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 10px; display: inline-flex; align-items: center; gap: 8px; }
.section h2 { font-size: clamp(26px, 3.2vw, 38px); }
.section-desc { color: var(--ink-2); font-size: 16.5px; }

/* ---------- 实况 ---------- */
.live-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 44px; align-items: center; }
.live-item { margin: 0; display: grid; grid-template-columns: auto minmax(0,1fr); gap: 34px; align-items: center; }
.live-item figcaption h3 { font-size: 22px; margin-bottom: 8px; }
.live-item figcaption p { color: var(--ink-2); font-size: 15.5px; }
.live-reverse { grid-template-columns: minmax(0,1fr) auto; }
.live-reverse .phone { order: 2; }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-row li { font-size: 12.5px; font-weight: 700; color: var(--red-dark); background: var(--red-soft); border-radius: 999px; padding: 5px 12px; }
.notice { margin-top: 46px; text-align: center; font-size: 13.5px; color: var(--ink-3); background: #fff8ec; border: 1px solid #ffe4bd; border-radius: 12px; padding: 12px 16px; }

/* ---------- 功能卡片 ---------- */
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 22px; box-shadow: 0 4px 14px rgba(22,24,29,.04); transition: transform .2s ease, box-shadow .2s ease; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card-ico { display: inline-flex; width: 44px; height: 44px; align-items: center; justify-content: center; font-size: 22px; border-radius: 12px; background: var(--red-soft); margin-bottom: 12px; }
.card h3 { font-size: 17.5px; }
.card p { font-size: 14.5px; color: var(--ink-2); margin: 0; }

/* ---------- 赛事覆盖 ---------- */
.cov-group { margin-bottom: 20px; }
.cov-title { font-size: 15.5px; margin: 0 0 10px; display: flex; align-items: center; gap: 8px; }
.cov-title::before { content: ""; width: 4px; height: 15px; border-radius: 2px; background: var(--red); }
.cov-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.cov-tags li { font-size: 13.5px; color: var(--ink-2); background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 5px 13px; transition: .2s; }
.cov-tags li:hover { color: var(--red); border-color: #ffc9c2; background: var(--red-soft); }
.cov-note { margin-top: 22px; font-size: 13px; color: var(--ink-3); }

/* ---------- 更新日志 ---------- */
.changelog { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; margin-bottom: 20px; }
.cl-title { font-size: 16px; margin: 0 0 12px; }
.changelog ul { display: grid; gap: 9px; }
.changelog li { font-size: 14px; color: var(--ink-2); padding-left: 100px; position: relative; line-height: 24px; }
.changelog time { position: absolute; left: 0; top: 3px; font-size: 12.5px; font-weight: 700; color: var(--red-dark); background: var(--red-soft); border-radius: 7px; padding: 2px 9px; font-family: ui-monospace, Menlo, Consolas, monospace; }

/* ---------- 数据条 ---------- */
.stats { background: linear-gradient(135deg, #1b1d23, #2c2f38); color: #fff; padding: 46px 0; }
.stats-inner { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 18px; text-align: center; }
.stat strong { display: block; font-size: clamp(28px, 3.4vw, 40px); font-weight: 800; color: #fff; }
.stat span { font-size: 14px; color: rgba(255,255,255,.68); }

/* ---------- 下载步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; margin-bottom: 34px; }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 22px; position: relative; }
.step-no { position: absolute; top: -16px; left: 22px; width: 34px; height: 34px; border-radius: 50%; background: linear-gradient(135deg, var(--red), #ff5a3c); color: #fff; display: grid; place-items: center; font-weight: 800; box-shadow: 0 6px 16px rgba(232,51,42,.35); }
.step h3 { font-size: 17.5px; margin: 14px 0 8px; }
.step p { font-size: 14.5px; color: var(--ink-2); margin: 0; }
.download-box { display: flex; align-items: center; justify-content: space-between; gap: 22px; flex-wrap: wrap; max-width: 940px; margin-inline: auto; background: #fff; border: 1px solid var(--line); border-left: 5px solid var(--red); border-radius: var(--radius); padding: 24px 26px; box-shadow: var(--shadow); }
.download-box > div:first-child { flex: 1 1 320px; }
.download-box-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.dl-wx-inline { display: inline-flex; align-items: center; gap: 8px; background: var(--red-soft); border: 1px dashed #ffbcb4; border-radius: 999px; padding: 7px 14px; cursor: pointer; font: inherit; font-size: 13.5px; font-weight: 700; color: var(--red-dark); transition: .2s; }
.dl-wx-inline:hover { background: var(--red); color: #fff; border-color: var(--red); }
.dl-wx-inline b { font-family: ui-monospace, Menlo, Consolas, monospace; letter-spacing: .5px; }
.dl-wx-inline.done { background: #07c160; border-color: #07c160; color: #fff; }
.download-box h3 { font-size: 20px; margin-bottom: 6px; }
.download-box p { margin: 0; color: var(--ink-3); font-size: 14.5px; }
.download-box .dl-tip { margin-top: 10px; color: var(--red-dark); font-size: 13.5px; font-weight: 700; }

/* ---------- 评价 ---------- */
.review-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 18px; }
.review { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; box-shadow: 0 4px 14px rgba(22,24,29,.04); }
.stars { color: var(--gold); letter-spacing: 2px; margin-bottom: 8px; font-size: 14px; }
.review p { font-size: 14.5px; color: var(--ink-2); }
.review footer { font-size: 13px; color: var(--ink-3); font-weight: 700; }

/* ---------- FAQ ---------- */
.qa { background: #fff; border: 1px solid var(--line); border-radius: 14px; margin-bottom: 12px; overflow: hidden; }
.qa summary { cursor: pointer; list-style: none; font-weight: 700; font-size: 16px; padding: 16px 52px 16px 18px; position: relative; }
.qa summary::-webkit-details-marker { display: none; }
.qa summary:hover { color: var(--red); }
.qa-ico { position: absolute; right: 18px; top: 50%; transform: translateY(-50%); width: 16px; height: 16px; }
.qa-ico::before, .qa-ico::after { content: ""; position: absolute; inset: 0; margin: auto; background: var(--red); border-radius: 2px; transition: .25s; }
.qa-ico::before { width: 16px; height: 2px; }
.qa-ico::after { width: 2px; height: 16px; }
.qa[open] .qa-ico::after { transform: rotate(90deg); opacity: 0; }
.qa p { margin: 0; padding: 0 18px 18px; color: var(--ink-2); font-size: 15px; border-top: 1px dashed var(--line); padding-top: 14px; }

/* ---------- 客服 ---------- */
.support-panel { background: linear-gradient(180deg, #fff6f5, #fff); border: 1px solid #ffd9d5; border-radius: 24px; padding: 44px 32px 34px; box-shadow: var(--shadow); }
.support-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; }
.support-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 20px 24px; text-align: center; box-shadow: 0 4px 14px rgba(22,24,29,.04); position: relative; }
.support-card-cta { background: linear-gradient(160deg, #fff, #f4f6f9); border-color: #dfe3e9; }
.sc-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin: 0 0 14px; }
.sc-wx { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 11px; background: #e9f9ef; color: #07c160; font-size: 18px; }
.sc-online { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 800; color: #07c160; background: #e9f9ef; padding: 4px 10px; border-radius: 999px; }
.sc-online .dot { background: #07c160; width: 6px; height: 6px; }
.support-label { font-size: 13.5px; color: var(--ink-3); margin: 0 0 6px; }
.support-wx { font-size: clamp(26px, 3vw, 34px); font-weight: 800; letter-spacing: 1px; margin: 0 0 18px; color: var(--ink); font-family: ui-monospace, Menlo, Consolas, monospace; word-break: break-all; }
.support-wx-sm { font-size: 15.5px; font-family: inherit; letter-spacing: 0; line-height: 1.6; color: var(--ink-2); }
.support-steps { counter-reset: s; display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; margin: 26px 0 0; padding: 22px 0 0; border-top: 1px dashed #f0c9c5; }
.support-steps li { counter-increment: s; list-style: none; font-size: 14px; color: var(--ink-2); padding-left: 30px; position: relative; }
.support-steps li::before { content: counter(s); position: absolute; left: 0; top: 1px; width: 22px; height: 22px; border-radius: 50%; background: var(--red); color: #fff; font-size: 12.5px; font-weight: 800; display: grid; place-items: center; }

/* ---------- 右侧悬浮客服 ---------- */
.side-service { position: fixed; right: 0; top: 50%; transform: translateY(-50%); z-index: 96; display: flex; align-items: flex-start; }
.ss-body { width: 232px; background: #fff; border: 1px solid var(--line); border-right: 0; border-radius: 16px 0 0 16px; box-shadow: var(--shadow-lg); padding: 16px 16px 14px; overflow: hidden; transition: width .3s ease, opacity .25s ease, padding .3s ease; }
.side-service.collapsed .ss-body { width: 0; opacity: 0; padding-inline: 0; border-width: 0; }
.ss-head { margin: 0 0 12px; font-size: 12.5px; color: var(--ink-3); line-height: 1.5; }
.ss-head strong { display: block; font-size: 15px; color: var(--red-dark); }
.ss-row { display: flex; align-items: center; gap: 6px; background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px; padding: 7px 8px; margin-bottom: 8px; }
.ss-row span { font-size: 11.5px; color: var(--ink-3); display: block; }
.ss-row b { flex: 1; font-size: 14.5px; letter-spacing: .3px; font-family: ui-monospace, Menlo, Consolas, monospace; }
.ss-copy { border: 0; background: var(--red); color: #fff; font-size: 11.5px; font-weight: 800; padding: 5px 9px; border-radius: 7px; cursor: pointer; }
.ss-copy:hover { background: var(--red-dark); }
.ss-copy.done { background: #07c160; }
.ss-dl { display: block; text-align: center; background: linear-gradient(135deg, var(--red), #ff5a3c); color: #fff; font-size: 13.5px; font-weight: 800; padding: 9px 10px; border-radius: 10px; margin-top: 4px; }
.ss-toggle { width: 46px; min-height: 92px; border: 1px solid var(--line); border-right: 0; border-radius: 12px 0 0 12px; background: linear-gradient(180deg, var(--red), var(--red-dark)); color: #fff; cursor: pointer; font-size: 12.5px; font-weight: 800; line-height: 1.3; padding: 10px 4px; box-shadow: -4px 6px 18px rgba(232,51,42,.28); }
.ss-toggle .ss-ico { display: block; font-size: 17px; margin-bottom: 3px; }
.ss-toggle:hover { filter: brightness(1.06); }

/* ---------- 页脚 ---------- */
.site-footer { background: #14161b; color: rgba(255,255,255,.72); padding: 52px 0 96px; font-size: 14.5px; }
.footer-inner { display: grid; grid-template-columns: minmax(0,1.4fr) minmax(0,1fr) minmax(0,1fr); gap: 32px; padding-bottom: 28px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-brand { display: flex; gap: 14px; align-items: center; }
.footer-brand img { border-radius: 12px; }
.footer-name { color: #fff; font-weight: 800; margin: 0 0 4px; }
.footer-desc { margin: 0; font-size: 13.5px; color: rgba(255,255,255,.55); }
.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 18px; align-content: flex-start; }
.footer-nav a:hover { color: #fff; }
.footer-contact p { margin: 0 0 6px; font-size: 13.5px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.footer-contact .fc-title { color: #fff; font-weight: 800; font-size: 14.5px; margin-bottom: 10px; display: block; }
.footer-contact p span { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 16px; font-weight: 800; color: #fff; letter-spacing: .5px; }
.fc-copy { border: 1px solid rgba(255,255,255,.3); background: rgba(255,255,255,.1); color: #fff; font-size: 11.5px; font-weight: 800; padding: 3px 10px; border-radius: 999px; cursor: pointer; transition: .2s; }
.fc-copy:hover { background: var(--red); border-color: var(--red); }
.fc-copy.done { background: #07c160; border-color: #07c160; }
.footer-bottom { padding-top: 22px; }
.footer-bottom p { margin: 0 0 8px; font-size: 13px; color: rgba(255,255,255,.5); }
.disclaimer { line-height: 1.8; }

/* ---------- 移动端固定条 & Toast ---------- */
.mobile-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 95;
  display: none; align-items: center; gap: 10px;
  background: rgba(255,255,255,.96); backdrop-filter: blur(12px);
  border-top: 1px solid var(--line); padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  box-shadow: 0 -6px 20px rgba(22,24,29,.08);
}
.mb-wx { flex: 1; min-width: 0; display: flex; align-items: center; gap: 8px; background: linear-gradient(135deg, var(--red), #ff5a3c); color: #fff; border: 0; border-radius: 12px; padding: 6px 10px; cursor: pointer; text-align: left; box-shadow: 0 4px 14px rgba(232,51,42,.3); }
.mb-wx-ico { font-size: 19px; }
.mb-wx-text { flex: 1; min-width: 0; line-height: 1.25; }
.mb-wx-text strong { display: block; font-size: 13.5px; }
.mb-wx-text em { font-style: normal; font-size: 11px; opacity: .92; font-family: ui-monospace, Menlo, Consolas, monospace; }
.mb-wx-copy { font-size: 11.5px; font-weight: 800; background: rgba(255,255,255,.22); padding: 5px 10px; border-radius: 999px; }
.mb-wx.done { background: #07c160; }
.mb-dl { flex: 0 0 auto; padding: 12px 18px; font-size: 15px; }
.toast {
  position: fixed; left: 50%; bottom: 96px; transform: translate(-50%, 16px);
  background: rgba(22,24,29,.92); color: #fff; padding: 10px 20px; border-radius: 999px;
  font-size: 14px; opacity: 0; pointer-events: none; transition: .28s ease; z-index: 200;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 触控目标（小屏与触屏设备） ---------- */
@media (max-width: 860px), (pointer: coarse) {
  .wx-chip { min-height: 40px; }
  .dl-wx-inline { min-height: 40px; }
  .btn-copy { min-height: 38px; }
  .fc-copy { min-height: 32px; }
  .footer-nav a { min-height: 40px; display: inline-flex; align-items: center; }
  .nav-toggle { min-height: 42px; }
  .mb-wx { min-height: 46px; }
  .qa summary { min-height: 48px; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1200px) {
  .side-service { display: none; }
}
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-phone { grid-template-columns: 1fr; }
  .card-grid, .support-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .review-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .live-item, .live-reverse { grid-template-columns: 1fr; justify-items: center; text-align: left; gap: 22px; }
  .live-reverse .phone { order: 0; }
  .live-item figcaption { max-width: 620px; }
}
@media (max-width: 860px) {
  .nav {
    position: fixed; inset: 68px 0 auto 0; flex-direction: column; align-items: stretch;
    background: #fff; border-bottom: 1px solid var(--line); padding: 10px 16px 16px;
    box-shadow: var(--shadow); transform: translateY(-130%); transition: transform .28s ease; z-index: 80;
  }
  .nav.open { transform: translateY(0); }
  .nav a { padding: 12px 8px; border-bottom: 1px solid var(--bg-2); border-radius: 0; }
  .nav-toggle { display: block; }
  .header-cta, .header-wx { display: none; }
  .topbar-inner { min-height: auto; padding-block: 8px; gap: 8px; }
  .topbar-text { font-size: 12.5px; }
  .topbar-wx { margin-left: 0; width: 100%; }
  .wx-chip { flex: 1 1 auto; justify-content: center; padding: 5px 8px; }
  .wx-chip em { display: none; }
  .support-panel { padding: 32px 18px 26px; }
  .support-steps { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px 14px; }
  .section { padding: 52px 0; }
  .section-head { margin-bottom: 30px; }
  .steps { grid-template-columns: 1fr; gap: 22px; }
  .stats-inner { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 24px; }
  .footer-inner { grid-template-columns: 1fr; gap: 22px; }
  .mobile-bar { display: flex; }
  .site-footer { padding-bottom: 84px; }
}
@media (max-width: 560px) {
  .trust { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .card-grid, .support-grid, .review-grid { grid-template-columns: 1fr; }
  .hero { padding: 22px 0 36px; }
  .hero h1 { font-size: 28px; }
  .h1-sub { font-size: 15.5px; margin-top: 8px; }
  .lead { font-size: 15px; }
  .badge { font-size: 12px; padding: 5px 11px; margin-bottom: 14px; }
  .hero-actions { gap: 10px; margin: 20px 0 22px; }
  .hero-actions .btn { flex: 1 1 auto; padding: 12px 16px; font-size: 15.5px; }
  .trust { gap: 8px; margin-bottom: 18px; }
  .trust li { padding: 9px 4px; border-radius: 11px; }
  .trust strong { font-size: 19px; }
  .trust span { font-size: 11.5px; }
  .phone { width: min(248px, 68vw); border-radius: 28px; padding: 7px; }
  .phone img, .phone-shot { border-radius: 22px; }
  .phone::after { width: 64px; height: 15px; top: 11px; }
  .app-spec { font-size: 12.5px; margin-bottom: 12px; }
  .section h2 { font-size: 23px; }
  .section-desc { font-size: 14.5px; }
  .section-head { margin-bottom: 26px; }
  .card { padding: 18px 16px; border-radius: 15px; }
  .card-ico { width: 38px; height: 38px; font-size: 19px; margin-bottom: 10px; }
  .card h3 { font-size: 16px; }
  .card p { font-size: 13.5px; }
  .card-grid { gap: 12px; }
  .live-grid { gap: 30px; }
  .live-item { gap: 16px; }
  .live-item figcaption h3 { font-size: 18.5px; }
  .live-item figcaption p { font-size: 14px; }
  .tag-row li { font-size: 11.5px; padding: 4px 10px; }
  .notice { font-size: 12.5px; padding: 10px 12px; margin-top: 28px; }
  .cov-title { font-size: 14.5px; margin-bottom: 8px; }
  .cov-tags { gap: 6px; }
  .cov-tags li { font-size: 12px; padding: 4px 10px; }
  .cov-note { margin-top: 16px; font-size: 12px; }
  .stats { padding: 30px 0; }
  .stat strong { font-size: 26px; }
  .stat span { font-size: 12.5px; }
  .step { padding: 20px 16px; }
  .step h3 { font-size: 16px; }
  .step p { font-size: 13.5px; }
  .changelog { padding: 16px; }
  .changelog li { padding-left: 0; line-height: 1.6; }
  .changelog time { position: static; display: inline-block; margin: 0 8px 2px 0; }
  .review { padding: 16px; }
  .review p { font-size: 13.5px; }
  .qa summary { font-size: 15px; padding: 13px 42px 13px 14px; }
  .qa p { font-size: 14px; padding: 12px 14px 15px; }
  .support-panel { padding: 24px 14px 20px; border-radius: 18px; }
  .support-card { padding: 18px 14px 20px; }
  .support-wx { font-size: 24px; margin-bottom: 14px; }
  .support-steps { margin-top: 20px; padding-top: 16px; gap: 8px 12px; }
  .support-steps li { font-size: 13px; padding-left: 26px; }
  .wx-card { padding: 15px 14px 13px; }
  .wx-item code { font-size: 16px; padding: 6px 10px; }
  .wx-title strong { font-size: 15px; }
  .download-box { padding: 18px 16px; }
  .download-box h3 { font-size: 17.5px; }
  .download-box p { font-size: 13.5px; }
  .download-box-actions { flex-direction: column; align-items: stretch; width: 100%; }
  .download-box-actions .btn { width: 100%; }
  .dl-wx-inline { justify-content: center; font-size: 13px; }
  .site-footer { padding: 36px 0 calc(96px + env(safe-area-inset-bottom)); font-size: 13.5px; }
  .footer-brand img { width: 40px; height: 40px; }
  .footer-name { font-size: 14.5px; }
  .footer-contact p span { font-size: 15px; }
  .footer-bottom p { font-size: 12px; }
  .wx-item { flex-wrap: wrap; }
  .wx-item code { order: 1; flex: 1 1 100%; }
  .btn-copy { margin-left: auto; }
  .wx-chip span { display: none; }
  .mb-wx-text em { font-size: 11.5px; }
  .download-box { flex-direction: column; align-items: stretch; text-align: center; }
  .download-box > div:first-child { flex: 0 1 auto; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}