/* ============================================================
   GPT会员代充 —— v3 主题样式
   风格：暖白纸感 + 赤陶红 + 墨绿，衬线标题的杂志感排版
   与 v1（深黑绿×青金）、v2（午夜蓝×电光橙）以及模板原版（浅蓝圆角卡片）都不同

   性能约定（上一版卡顿的几个来源，这里全部避开）：
   1. 不引用任何远程字体（模板用了 miaoda.feishu.cn 的 Space Grotesk），标题走系统衬线栈
   2. 不用 backdrop-filter 毛玻璃（滚动时最吃 GPU）
   3. 不做逐帧 JS 动画，跑马灯用 CSS transform 动画（合成层，不重排）
   4. 大图只压缩为 JPEG 并 lazy 加载，没有大面积 blur / 多层渐变
   ============================================================ */

:root {
  --paper: #faf6ee;
  --paper2: #f4eee2;
  --card: #ffffff;
  --ink: #1c1a16;
  --ink2: #56504a;
  --ink3: #8d857a;
  --line: #e6ddcd;
  --line2: #d3c7b2;
  --rust: #b23c1f;
  --rust-d: #8e2d13;
  --rust-soft: #fbece6;
  --pine: #14453a;
  --gold: #a8842c;
  --serif: Georgia, "Songti SC", "STSong", "SimSun", "宋体", serif;
  --sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "微软雅黑", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background-color: var(--paper);
  background-image:
    radial-gradient(1100px 460px at 10% -10%, rgba(178, 60, 31, .055), transparent 68%),
    radial-gradient(900px 420px at 92% 2%, rgba(20, 69, 58, .05), transparent 68%);
  background-repeat: no-repeat;
  color: var(--ink);
  font: 16px/1.7 var(--sans);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; }
a { color: inherit; }
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 700; line-height: 1.22; }
p { margin: 0 0 12px; }
ul, ol { margin: 0; padding: 0; list-style: none; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--rust); outline-offset: 2px; }

.wrap { width: min(1180px, 100% - 48px); margin-inline: auto; }
.center { text-align: center; }

/* ---------- 顶部信息条 ---------- */
.ticker { background: var(--pine); color: #e9e3d6; font-size: 13px; }
.ticker-in { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; padding: 8px 0; }
.ticker-dot { width: 3px; height: 3px; border-radius: 50%; background: rgba(233, 227, 214, .5); }

/* ---------- 导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 40;
  background: rgba(250, 246, 238, .94);
  border-bottom: 1px solid var(--line);
}
.nav-in { display: flex; align-items: center; gap: 22px; min-height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.logo img { display: block; border-radius: 7px; }
.logo-text { font-family: var(--serif); font-weight: 700; font-size: 17px; }
.logo-text i { font-style: normal; font-family: var(--sans); font-weight: 500; font-size: 12.5px; color: var(--ink3); margin-left: 3px; }
.nav-center { display: flex; gap: 26px; margin-left: auto; }
.nav-center a { color: var(--ink2); font-size: 14.5px; text-decoration: none; }
.nav-center a:hover { color: var(--rust); }
.nav-right { display: flex; align-items: center; gap: 10px; }
.burger { display: none; width: 40px; height: 40px; border: 1px solid var(--line2); background: transparent; border-radius: 6px; padding: 11px 9px; cursor: pointer; }
.burger span { display: block; height: 1.5px; background: var(--ink2); margin-bottom: 4px; }
.burger span:last-child { margin-bottom: 0; }

/* 移动抽屉 */
.drawer { position: fixed; inset: 68px 0 auto 0; z-index: 39; background: var(--paper); border-bottom: 1px solid var(--line); padding: 18px 24px 22px; }
.drawer ul { display: grid; gap: 2px; margin-bottom: 16px; }
.drawer a { display: block; padding: 11px 0; border-bottom: 1px solid var(--line); color: var(--ink2); text-decoration: none; font-size: 15px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border: 1px solid transparent; border-radius: 6px;
  font: 600 15px/1 var(--sans); cursor: pointer; text-decoration: none;
  transition: background-color .18s, color .18s, border-color .18s;
}
.btn-solid { background: var(--rust); color: #fff; }
.btn-solid:hover { background: var(--rust-d); }
.btn-line { background: transparent; color: var(--ink); border-color: var(--line2); }
.btn-line:hover { border-color: var(--rust); color: var(--rust); }
.btn-rust { background: #f7f2e7; color: var(--pine); }
.btn-rust:hover { background: #fff; }
.btn-ghost { background: transparent; color: #f7f2e7; border-color: rgba(247, 242, 231, .45); }
.btn-ghost:hover { border-color: #f7f2e7; }
.btn-sm { padding: 9px 16px; font-size: 14px; }
.btn-block { width: 100%; }
.link-btn { background: none; border: 0; padding: 0; font: 600 14.5px/1.5 var(--sans); color: var(--rust); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }

/* ---------- 首屏 ---------- */
.hero { padding: 62px 0 30px; }
.hero-in { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr); gap: 54px; align-items: start; }
.kicker { font: 600 13px/1.6 var(--sans); letter-spacing: .04em; color: var(--rust); margin: 0 0 14px; }
.hero h1 { font-size: clamp(34px, 4.3vw, 54px); margin: 0 0 18px; letter-spacing: -.01em; }
.hero h1 em { font-style: normal; color: var(--rust); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 20px; }
.chips span { font-size: 13px; color: var(--pine); border: 1px solid var(--line2); background: rgba(20, 69, 58, .04); border-radius: 999px; padding: 4px 12px; }
.lead { color: var(--ink2); max-width: 34em; margin: 0 0 26px; }
.lead strong { color: var(--ink); }
.btns { display: flex; flex-wrap: wrap; gap: 12px; }
.btns.center { justify-content: center; }

.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 34px 0 0; padding: 22px 0 0; border-top: 1px solid var(--line); }
.stats > div { padding-right: 16px; border-right: 1px solid var(--line); }
.stats > div:last-child { border-right: 0; }
.stats dt { font-family: var(--serif); font-size: 26px; font-weight: 700; line-height: 1.1; }
.stats dd { margin: 6px 0 0; font-size: 13px; color: var(--ink3); }

/* 首屏下单卡 */
.order { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 26px; box-shadow: 0 12px 32px rgba(28, 26, 22, .05); }
.order-label { font: 600 12.5px/1 var(--sans); letter-spacing: .1em; color: var(--rust); margin: 0 0 12px; }
.order-title { font-size: 22px; margin: 0 0 8px; }
.order-desc { color: var(--ink2); font-size: 14px; margin: 0 0 18px; }
.order-list { border-top: 1px solid var(--line); margin-bottom: 18px; }
.order-list li { border-bottom: 1px solid var(--line); }
.order-list a,
.order-list button {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2px 14px;
  width: 100%; padding: 13px 2px; text-align: left; background: none; border: 0;
  font: inherit; color: inherit; cursor: pointer; text-decoration: none;
}
.order-list a:hover .o-name,
.order-list button:hover .o-name { color: var(--rust); }
.o-name { font-weight: 600; font-size: 15.5px; }
.o-meta { grid-column: 1; font-size: 13px; color: var(--ink3); }
.o-price { grid-row: 1 / span 2; grid-column: 2; align-self: center; font-family: var(--serif); font-size: 20px; font-weight: 700; color: var(--rust); }
.o-price i { font-style: normal; font-family: var(--sans); font-size: 12.5px; color: var(--ink3); }
.o-price.ask { font-family: var(--sans); font-size: 15px; font-weight: 600; color: var(--pine); }
.order-note { font-size: 13px; color: var(--ink3); background: var(--paper2); border-radius: 7px; padding: 10px 12px; margin: 0 0 18px; }
.order-btns { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 16px; }
.order-trust { display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: 13px; color: var(--ink2); margin-bottom: 14px; }
.order-trust li::before { content: "✓"; color: var(--pine); font-weight: 700; margin-right: 6px; }
.order > .link-btn { display: block; width: 100%; text-align: center; font-weight: 500; color: var(--ink3); text-decoration: none; border-top: 1px dashed var(--line); padding-top: 14px; }

/* 实时记录 */
.live { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 16px; align-items: center; margin-top: 46px; padding: 12px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.live-label { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink2); white-space: nowrap; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--rust); animation: pulse 1.9s ease-in-out infinite; }
.marquee { overflow: hidden; }
.track { display: inline-flex; gap: 32px; white-space: nowrap; animation: marq 44s linear infinite; }
.track span { font-size: 13px; color: var(--ink3); }
.track b { color: var(--ink); font-weight: 600; }
.marquee:hover .track { animation-play-state: paused; }
@keyframes marq { from { transform: translate3d(0, 0, 0); } to { transform: translate3d(-50%, 0, 0); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .3; } }

/* ---------- 区块外壳 ---------- */
.sec { padding: 76px 0; }
.sec-alt { background: var(--paper2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { max-width: 720px; margin: 0 0 38px; }
.sec-label { display: flex; align-items: center; gap: 10px; font: 600 12.5px/1 var(--sans); letter-spacing: .12em; color: var(--rust); margin: 0 0 14px; }
.sec-label::before { content: ""; width: 22px; height: 1px; background: var(--rust); }
.sec-head h2 { font-size: clamp(25px, 2.7vw, 36px); margin: 0 0 14px; }
.sec-sub { color: var(--ink2); font-size: 15.5px; margin: 0; }

/* ---------- 服务保障条 ---------- */
.truststrip { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 26px; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px 22px; margin-bottom: 32px; }
.ts-title { font: 600 13px/1 var(--sans); color: var(--pine); padding-right: 20px; border-right: 1px solid var(--line); }
.truststrip ul { display: flex; flex-wrap: wrap; gap: 12px 26px; font-size: 14px; color: var(--ink2); }
.truststrip li::before { content: "✓"; color: var(--pine); font-weight: 700; margin-right: 7px; }
.truststrip strong { color: var(--ink); }

/* ---------- 服务卡片 ---------- */
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.svc { position: relative; display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 26px; }
.svc.wide { grid-column: span 2; }
.svc-tag { position: absolute; top: -1px; right: 22px; margin: 0; background: var(--rust); color: #fff; font-size: 12px; padding: 5px 12px; border-radius: 0 0 6px 6px; }
.svc-mark { font-family: var(--serif); font-weight: 700; font-size: 13px; letter-spacing: .16em; text-transform: uppercase; color: var(--rust); margin: 0 0 14px; }
.svc h3 { font-size: 21px; margin: 0 0 10px; }
.svc-desc { color: var(--ink2); font-size: 14.5px; margin: 0 0 16px; }
.svc-feats { display: grid; gap: 8px; font-size: 14px; color: var(--ink2); margin-bottom: 18px; }
.svc.wide .svc-feats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 22px; }
.svc-feats li { position: relative; padding-left: 15px; }
.svc-feats li::before { content: ""; position: absolute; left: 0; top: 10px; width: 5px; height: 5px; background: var(--line2); }
.svc-note { font-size: 13px; color: var(--ink3); border-left: 2px solid var(--pine); padding-left: 10px; margin: 0 0 18px; }
.svc-note.warn { border-left-color: var(--rust); }
.svc-price { display: flex; align-items: baseline; gap: 8px; margin: auto 0 16px; }
.svc-price span { font-size: 12.5px; color: var(--ink3); }
.svc-price b { font-family: var(--serif); font-size: 26px; }
.svc-price b.ask { font-family: var(--sans); font-size: 17px; color: var(--pine); }
.svc-price i { font-style: normal; font-size: 13px; color: var(--ink3); }

/* ---------- 套餐 ---------- */
.plans { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.plan { position: relative; display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 24px; }
.plan.hot { border-color: var(--rust); box-shadow: 0 0 0 3px rgba(178, 60, 31, .07); }
.plan-hot { position: absolute; top: -1px; right: 22px; margin: 0; background: var(--rust); color: #fff; font-size: 12px; padding: 5px 12px; border-radius: 0 0 6px 6px; }
.plan h3 { font-size: 19px; margin: 8px 0 12px; }
.plan-price { display: flex; align-items: baseline; gap: 6px; margin: 0 0 16px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.plan-price b { font-family: var(--serif); font-size: 32px; color: var(--rust); }
.plan-price i { font-style: normal; font-size: 13px; color: var(--ink3); }
.plan-feats { display: grid; gap: 6px; font-size: 13.8px; color: var(--ink2); margin-bottom: 18px; }
.plan-feats li { position: relative; padding-left: 14px; }
.plan-feats li::before { content: ""; position: absolute; left: 0; top: 10px; width: 5px; height: 5px; border-radius: 50%; background: var(--pine); }
.plan-line { font-size: 13px; color: var(--ink3); margin: auto 0 16px; }
.center-note { text-align: center; color: var(--ink2); font-size: 14.5px; margin: 34px 0 18px; }

/* ---------- 流程 ---------- */
.how-in { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: 52px; align-items: start; }
.steps li { display: grid; grid-template-columns: 52px minmax(0, 1fr); gap: 18px; padding: 22px 0; border-top: 1px solid var(--line); }
.steps li:last-child { border-bottom: 1px solid var(--line); }
.step-n { font-family: var(--serif); font-weight: 700; font-size: 15px; color: var(--rust); letter-spacing: .04em; padding-top: 3px; }
.steps h3 { font-size: 18.5px; margin: 0 0 8px; }
.steps p { color: var(--ink2); font-size: 14.5px; }
.step-tip { display: inline-block; font-size: 13px; color: var(--pine); background: rgba(20, 69, 58, .05); border-radius: 5px; padding: 8px 11px; margin: 0; }
.step-tip.warn { color: var(--rust); background: var(--rust-soft); }
.code { display: flex; align-items: center; justify-content: space-between; gap: 14px; width: 100%; margin: 0 0 12px; padding: 10px 14px; background: var(--paper2); border: 1px dashed var(--line2); border-radius: 6px; font: 13.5px/1.4 ui-monospace, Consolas, monospace; color: var(--ink2); cursor: pointer; }
.code em { font-style: normal; font-family: var(--sans); font-size: 12.5px; color: var(--rust); }
.code:hover { border-color: var(--rust); }

/* 进度时间轴：三列（序号 / 轴线 / 内容），圆点与轴线都由布局居中，无手算坐标 */
.tl-card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 26px; }
.tl-cap { font: 600 12.5px/1 var(--sans); letter-spacing: .1em; color: var(--pine); margin: 0 0 18px; }
.tl li { display: grid; grid-template-columns: 34px 20px minmax(0, 1fr); align-items: start; }
.tl-n { font-family: var(--serif); font-size: 12.5px; color: var(--ink3); padding-top: 15px; }
.tl-axis { position: relative; display: flex; justify-content: center; align-self: stretch; }
.tl-axis::before { content: ""; position: absolute; top: 0; bottom: 0; left: 50%; width: 1px; background: var(--line); transform: translateX(-50%); }
.tl li:first-child .tl-axis::before { top: 21px; }
.tl li:last-child .tl-axis::before { bottom: auto; height: 21px; }
.tl-dot { position: relative; z-index: 1; width: 11px; height: 11px; margin-top: 15px; border-radius: 50%; background: var(--card); border: 1px solid var(--line2); }
.tl li.done .tl-dot { background: var(--pine); border-color: var(--pine); }
.tl li.active .tl-dot { background: var(--rust); border-color: var(--rust); box-shadow: 0 0 0 4px rgba(178, 60, 31, .14); }
.tl li.warn .tl-dot { background: var(--gold); border-color: var(--gold); }
.tl-body { padding: 12px 0 18px 14px; border-bottom: 1px dashed var(--line); }
.tl li:last-child .tl-body { border-bottom: 0; }
.tl-body h4 { font-size: 16px; margin: 0 0 5px; }
.tl li:last-child .tl-body h4 { color: var(--ink3); }
.tl-body p { font-size: 13.5px; color: var(--ink2); margin: 0 0 8px; }
.tag { display: inline-block; font-style: normal; font-size: 12.5px; padding: 3px 9px; border-radius: 999px; background: var(--paper2); border: 1px solid var(--line); color: var(--ink2); }
.tag.ok { background: rgba(20, 69, 58, .08); border-color: transparent; color: var(--pine); }
.tag.caution { background: var(--rust-soft); border-color: transparent; color: var(--rust); }

/* ---------- 保障 / 企业 ---------- */
.tgrid, .bizgrid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 36px; border-top: 1px solid var(--line); }
.titem, .biz { padding: 26px 0; border-bottom: 1px solid var(--line); }
.tnum { font-family: var(--serif); font-size: 13px; letter-spacing: .08em; color: var(--rust); }
.titem h3, .biz h3 { font-size: 18px; margin: 8px 0; }
.titem p, .biz p { margin: 0; color: var(--ink2); font-size: 14.5px; }
.bizgrid { margin-top: 4px; }
.bizline { text-align: center; color: var(--ink3); font-size: 13.5px; margin: 26px 0 18px; }

/* ---------- 提醒面板 ---------- */
.warnpanel { background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--rust); border-radius: 8px; padding: 30px; }
.warnpanel h2 { font-size: 24px; margin: 0 0 16px; }
.warnlist li { display: grid; grid-template-columns: 42px minmax(0, 1fr); gap: 12px; padding: 13px 0; border-top: 1px solid var(--line); }
.warnlist span { font-family: var(--serif); font-weight: 700; font-size: 14px; color: var(--rust); padding-top: 2px; }
.warnlist p { margin: 0; color: var(--ink2); font-size: 14.5px; }
.warnlist strong { color: var(--ink); }

/* ---------- 开通结果 ---------- */
.verify { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); gap: 36px; align-items: center; }
.verify figure { margin: 0; background: var(--card); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.verify img { display: block; width: 100%; height: auto; }
.verify figcaption { font-size: 12.5px; color: var(--ink3); padding: 10px 14px; border-top: 1px solid var(--line); }
.vchecks li { position: relative; padding: 16px 0 16px 20px; border-top: 1px solid var(--line); color: var(--ink2); font-size: 14.5px; }
.vchecks li:first-child { border-top: 0; }
.vchecks li::before { content: "✓"; position: absolute; left: 0; top: 16px; color: var(--pine); font-weight: 700; }
.vchecks b { display: block; font-family: var(--serif); font-size: 16px; color: var(--ink); margin-bottom: 4px; }

/* ---------- 客户反馈 ---------- */
.reviews { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.rev { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 24px; }
.rev-q { font-family: var(--serif); font-size: 19px; line-height: 1.5; margin: 0 0 12px; }
.rev-meta { font-size: 12.5px; color: var(--ink3); margin: 0 0 16px; }
.chat { display: grid; gap: 8px; margin-top: auto; }
.chat span { max-width: 92%; font-size: 13.5px; color: var(--ink2); background: var(--paper2); border-radius: 10px 10px 10px 3px; padding: 9px 12px; }
.chat .me { justify-self: end; background: rgba(20, 69, 58, .09); color: var(--pine); border-radius: 10px 10px 3px 10px; }

/* ---------- 教程 ---------- */
.tutgrid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.tut { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 26px; }
.tut-k { font: 600 12.5px/1 var(--sans); letter-spacing: .1em; color: var(--rust); margin: 0 0 12px; }
.tut h3 { font-size: 19px; margin: 0 0 10px; }
.tut > p { color: var(--ink2); font-size: 14.5px; margin: 0 0 16px; }
.tut ol { margin: 0 0 20px; padding-left: 20px; list-style: decimal; color: var(--ink2); font-size: 14px; }
.tut ol li { padding: 4px 0; }
.tut .link-btn { margin-top: auto; text-align: left; }

/* ---------- FAQ：用原生 details，零 JS ---------- */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 20px 2px; font-family: var(--serif); font-size: 17.5px; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; flex: 0 0 auto; font-family: var(--sans); font-size: 20px; line-height: 1; color: var(--rust); }
.faq details[open] summary::after { content: "−"; }
.faq summary:hover { color: var(--rust); }
.faq-a { padding: 0 2px 22px; color: var(--ink2); font-size: 15px; max-width: 80ch; }

/* ---------- 尾部行动区 ---------- */
.cta { background: var(--pine); border-radius: 12px; padding: 52px 40px; text-align: center; }
.cta-label { font: 600 12.5px/1 var(--sans); letter-spacing: .14em; color: rgba(247, 242, 231, .72); margin: 0 0 14px; }
.cta h2 { color: #f7f2e7; margin: 0 0 12px; }
.cta-sub { color: rgba(247, 242, 231, .82); font-size: 15.5px; margin: 0 0 28px; }
.cta-checks { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 24px; margin: 28px 0 0; font-size: 13.5px; color: rgba(247, 242, 231, .78); }
.cta-checks li::before { content: "✓"; color: #c9b06a; font-weight: 700; margin-right: 7px; }

/* ---------- 页脚（含备案信息） ---------- */
.foot { background: #12100d; color: #cfc7b8; padding: 58px 0 30px; }
.foot-in { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, .85fr)); gap: 36px; }
.foot .logo { color: #f5f0e5; }
.foot .logo-text i { color: #8a8274; }
.foot-brand p { color: #9a9184; font-size: 14px; margin: 16px 0 0; max-width: 34ch; }
.foot-col h3 { font: 600 13px/1 var(--sans); letter-spacing: .1em; color: #f5f0e5; margin: 0 0 14px; }
.foot-col ul { display: grid; gap: 9px; }
.foot-col a, .foot-col button { background: none; border: 0; padding: 0; font: 400 14px/1.5 var(--sans); color: #a9a093; text-decoration: none; cursor: pointer; text-align: left; }
.foot-col a:hover, .foot-col button:hover { color: #e9e2d3; }
.foot-col .btn { margin: 0 8px 8px 0; }
.foot-wx { font-size: 14px; color: #a9a093; margin: 0 0 14px; }
.foot-wx b { display: block; margin-top: 4px; font-family: var(--serif); font-size: 16px; color: #f5f0e5; letter-spacing: .03em; }
.foot-bottom { margin-top: 44px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .1); }
.foot-legal { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; margin: 0 0 12px; font-size: 13.5px; color: #b8b0a2; }
.foot-legal b { color: #f5f0e5; font-weight: 600; }
.foot-legal a { color: #e0b98a; text-decoration: underline; text-underline-offset: 3px; }
.foot-legal .sep { color: rgba(255, 255, 255, .25); }
.foot-disc { margin: 0 0 14px; font-size: 12.5px; line-height: 1.75; color: #8d857a; max-width: 100ch; }
.foot-badges { display: flex; gap: 8px; }
.fbadge { font-size: 12px; color: #a9a093; border: 1px solid rgba(255, 255, 255, .14); border-radius: 999px; padding: 4px 11px; }

/* ---------- 固定控件 ---------- */
.sticky-cta { display: none; position: fixed; left: 14px; right: 14px; bottom: 14px; z-index: 45; background: var(--rust); color: #fff; border: 0; border-radius: 8px; padding: 15px; font: 600 15px/1 var(--sans); box-shadow: 0 10px 26px rgba(0, 0, 0, .2); }
.totop { display: none; position: fixed; right: 18px; bottom: 18px; z-index: 44; width: 44px; height: 44px; align-items: center; justify-content: center; background: var(--card); border: 1px solid var(--line2); border-radius: 50%; color: var(--ink2); cursor: pointer; }
.totop svg { width: 18px; height: 18px; }
.totop.on { display: flex; }
.toast { position: fixed; left: 50%; bottom: 26px; z-index: 60; padding: 12px 18px; background: #12100d; color: #f5f0e5; font-size: 14px; border-radius: 8px; opacity: 0; transform: translate(-50%, 12px); transition: opacity .2s, transform .2s; pointer-events: none; }
.toast.on { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 客服弹窗 ---------- */
.modal { position: fixed; inset: 0; z-index: 70; display: flex; align-items: center; justify-content: center; padding: 20px; overflow: auto; background: rgba(18, 16, 13, .64); }
.modal-box { position: relative; width: min(720px, 100%); background: var(--card); border-radius: 12px; padding: 30px; text-align: center; }
.modal-x { position: absolute; top: 8px; right: 10px; width: 38px; height: 38px; background: none; border: 0; font-size: 26px; line-height: 1; color: var(--ink3); cursor: pointer; }
.modal-box h3 { font-size: 23px; margin: 0 0 10px; }
.modal-box > p { color: var(--ink2); font-size: 14.5px; }
.qr-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 20px 0; }
.qr-grid figure { margin: 0; padding: 14px; background: var(--paper); border: 1px solid var(--line); border-radius: 8px; }
.qr-grid figcaption { font-size: 13px; color: var(--ink2); margin-bottom: 10px; }
.qr-grid img { display: block; width: 100%; max-width: 280px; height: auto; margin: 0 auto; background: #fff; border-radius: 6px; }
.modal-tip { padding: 12px 14px; background: var(--paper2); border-radius: 8px; font-size: 13.5px; color: var(--ink2); text-align: left; margin: 0 0 14px; }
.modal-tip b { color: var(--ink); }

/* ---------- 渐显（无 JS 时内容直接可见） ---------- */
.js .rv { opacity: 0; transform: translate3d(0, 14px, 0); transition: opacity .5s ease-out, transform .5s ease-out; }
.js .rv.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .hero-in, .how-in, .verify { grid-template-columns: minmax(0, 1fr); gap: 34px; }
  .cards, .plans, .tgrid, .bizgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .foot-in { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 980px) {
  .nav-center { display: none; }
  .nav-right { margin-left: auto; }
  .burger { display: block; }
}
@media (max-width: 900px) {
  .reviews, .tutgrid { grid-template-columns: minmax(0, 1fr); }
  .sec { padding: 60px 0; }
}
@media (max-width: 820px) {
  .sticky-cta { display: block; }
  .totop { bottom: 78px; }
  .toast { bottom: 96px; }
  .foot { padding-bottom: 82px; }
}
@media (max-width: 680px) {
  .wrap { width: min(1180px, 100% - 32px); }
  .cards, .plans, .tgrid, .bizgrid, .foot-in, .qr-grid { grid-template-columns: minmax(0, 1fr); }
  .svc.wide { grid-column: span 1; }
  .svc.wide .svc-feats { grid-template-columns: minmax(0, 1fr); }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 0; }
  .stats > div:nth-child(2) { border-right: 0; padding-right: 0; }
  .order-btns { grid-template-columns: 1fr; }
  .live { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .cta { padding: 38px 22px; }
  .warnpanel { padding: 22px; }
  .ticker-in { font-size: 12.5px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .track, .live-dot { animation: none; }
  .js .rv { opacity: 1; transform: none; transition: none; }
}