/* 官网样式：零构建、零依赖，单文件。设计目标是「大气 + 可读」，
   同时保证 LLM 抓取时正文在 HTML 里就能读到，不依赖 JS 渲染。 */

:root {
  --ink: #0d1512;
  --ink-2: #1b2a25;
  --body: #46534e;
  --muted: #7c8a84;
  --jade: #1f6f5c;
  --jade-2: #2e9e7f;
  --jade-soft: #e7f2ee;
  --gold: #c08a2e;
  --cream: #f8f5ee;
  --line: #e2ded2;
  --white: #fff;
  --radius: 18px;
  --shadow-s: 0 1px 2px rgba(13, 21, 18, .06), 0 2px 8px rgba(13, 21, 18, .04);
  --shadow-l: 0 24px 60px -24px rgba(13, 21, 18, .35);
  --display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
  --maxw: 1160px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--body);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { font-family: var(--display); color: var(--ink); line-height: 1.25; margin: 0 0 .5em; font-weight: 600; }
h1 { font-size: clamp(2.1rem, 1.2rem + 3.6vw, 3.5rem); letter-spacing: -.02em; }
h2 { font-size: clamp(1.6rem, 1.1rem + 2vw, 2.5rem); }
h3 { font-size: 1.2rem; }
/* balance / pretty 专门治「最后一行只掉一两个字」，不支持的浏览器按普通换行处理 */
h1, h2 { text-wrap: balance; }
p { margin: 0 0 1em; text-wrap: pretty; }
a { color: var(--jade); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { max-width: 100%; height: auto; display: block; }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 22px; }
.section { padding: clamp(64px, 9vw, 116px) 0; }
.section--tint { background: linear-gradient(180deg, var(--cream) 0%, var(--white) 100%); }
.section--dark { background: var(--ink); color: #cdd8d3; }
.section--dark h2, .section--dark h3 { color: var(--white); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  color: var(--jade); margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: currentColor; }
.lede { font-size: clamp(1.02rem, .95rem + .4vw, 1.22rem); color: var(--body); max-width: 62ch; }
.section--dark .lede { color: #b3c2bc; }
.answer {
  border-left: 3px solid var(--jade-2);
  padding: 2px 0 2px 18px;
  font-size: 1.05rem;
  color: var(--ink-2);
}
.answer strong { color: var(--jade); }

/* ---------------------------------------------------------- 顶栏 */

.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, box-shadow .25s;
}
.nav.is-stuck { border-bottom-color: var(--line); box-shadow: var(--shadow-s); }
.nav__inner { display: flex; align-items: center; gap: 20px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--display); font-size: 1.18rem; font-weight: 600; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand__mark { width: 30px; height: 30px; flex: none; }
.nav__links { display: flex; gap: 26px; margin-left: auto; font-size: 15px; }
.nav__links a { color: var(--ink-2); }
.nav__links a:hover { color: var(--jade); text-decoration: none; }
.nav__aside { display: flex; align-items: center; gap: 12px; }
.nav__lang { font-size: 14px; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 5px 12px; }
.nav__lang:hover { border-color: var(--jade); color: var(--jade); text-decoration: none; }
.nav__burger { display: none; background: none; border: 0; padding: 8px; cursor: pointer; color: var(--ink); }

@media (max-width: 900px) {
  .nav__links {
    position: absolute; inset: 68px 0 auto; flex-direction: column; gap: 0;
    background: var(--white); border-bottom: 1px solid var(--line);
    padding: 8px 22px 18px; display: none;
  }
  .nav.is-open .nav__links { display: flex; }
  .nav__links a { padding: 11px 0; border-bottom: 1px solid var(--cream); }
  .nav__burger { display: block; margin-left: auto; }
  .nav__aside .btn { display: none; }
}

/* ---------------------------------------------------------- 按钮 */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 26px; border-radius: 999px; font-size: 15px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: transform .18s, box-shadow .18s, background .18s, color .18s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn--primary { background: var(--jade); color: #fff; box-shadow: 0 10px 26px -12px rgba(31, 111, 92, .8); }
.btn--primary:hover { background: #185b4b; }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--jade); color: var(--jade); }
.btn--light { background: rgba(255, 255, 255, .12); color: #fff; border-color: rgba(255, 255, 255, .28); }
.btn--light:hover { background: rgba(255, 255, 255, .2); }
.btn--sm { padding: 9px 18px; font-size: 14px; }

/* ---------------------------------------------------------- Hero */

.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1100px 520px at 82% -8%, #d8ece4 0%, rgba(216, 236, 228, 0) 62%),
    radial-gradient(760px 460px at 4% 106%, #f4e8d2 0%, rgba(244, 232, 210, 0) 60%),
    var(--cream);
}
.hero__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(32px, 5vw, 72px); align-items: center; padding: clamp(56px, 8vw, 104px) 0 clamp(60px, 8vw, 100px); }
.hero h1 { margin-bottom: 18px; }
.hero h1 em { font-style: normal; color: var(--jade); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin: 30px 0 22px; }
.hero__note { font-size: 13.5px; color: var(--muted); }
.hero__stats { display: flex; flex-wrap: wrap; gap: clamp(16px, 3vw, 34px); margin-top: 38px; padding-top: 26px; border-top: 1px solid var(--line); }
.hero__stats > div { flex: 1 1 0; min-width: 0; }
.stat__n { font-family: var(--display); font-size: clamp(1.5rem, 1.2rem + 1.1vw, 2.1rem); color: var(--ink); font-weight: 600; }
.stat__l { font-size: 13px; color: var(--muted); }
.hero__art { position: relative; }
.hero__art svg { width: 100%; filter: drop-shadow(0 30px 60px rgba(13, 21, 18, .16)); }

@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__art { order: -1; max-width: 420px; }
}
@media (max-width: 560px) {
  /* 窄屏四项挤一行会看不清，改成 2×2 */
  .hero__stats { gap: 20px 14px; }
  .hero__stats > div { flex: 0 0 calc(50% - 7px); }
}

/* 手机外框：纯 CSS，避免依赖截图素材 */
.phone { position: relative; width: 100%; max-width: 330px; margin-inline: auto; aspect-ratio: 9 / 19; background: #101a17; border-radius: 42px; padding: 12px; box-shadow: var(--shadow-l); }
.phone::after { content: ""; position: absolute; top: 22px; left: 50%; transform: translateX(-50%); width: 84px; height: 20px; background: #0a110f; border-radius: 12px; }
.phone__screen { width: 100%; height: 100%; border-radius: 32px; overflow: hidden; background: var(--white); display: flex; flex-direction: column; }
.screen__top { padding: 52px 18px 12px; background: linear-gradient(160deg, var(--jade) 0%, var(--jade-2) 100%); color: #fff; }
.screen__top small { opacity: .82; font-size: 11px; letter-spacing: .1em; }
.screen__top b { display: block; font-family: var(--display); font-size: 21px; margin-top: 2px; }
.screen__body { padding: 16px 18px; display: grid; gap: 11px; }
.chip { display: inline-block; padding: 3px 10px; border-radius: 999px; background: var(--jade-soft); color: var(--jade); font-size: 11.5px; font-weight: 600; }
.srow { display: flex; justify-content: space-between; align-items: center; font-size: 12.5px; color: var(--ink-2); background: var(--cream); border-radius: 10px; padding: 10px 12px; }
.sbar { height: 6px; border-radius: 3px; background: #e6e2d7; overflow: hidden; }
.sbar i { display: block; height: 100%; border-radius: 3px; background: linear-gradient(90deg, var(--jade-2), var(--gold)); }

/* ---------------------------------------------------------- 卡片 */

.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; }
.card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 26px 28px; box-shadow: var(--shadow-s);
  transition: transform .22s, box-shadow .22s, border-color .22s;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 18px 40px -22px rgba(13, 21, 18, .3); border-color: #cfe0d9; }
.card__icon { width: 42px; height: 42px; border-radius: 12px; background: var(--jade-soft); color: var(--jade); display: grid; place-items: center; margin-bottom: 16px; }
.card h3 { margin-bottom: 8px; }
.card p { font-size: 14.8px; margin: 0; color: var(--body); }
.span-4 { grid-column: span 4; }
.span-3 { grid-column: span 3; }
.span-2 { grid-column: span 2; }
@media (max-width: 900px) { .bento { grid-template-columns: repeat(2, 1fr); } .span-4, .span-3, .span-2 { grid-column: span 2; } }

/* ---------------------------------------------------------- 流程 */

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
.step { position: relative; padding-top: 26px; border-top: 2px solid var(--line); }
.step::before {
  counter-increment: step; content: "0" counter(step);
  position: absolute; top: -20px; left: 0; background: var(--white); padding-right: 12px;
  font-family: var(--display); font-size: 1.35rem; color: var(--jade); font-weight: 600;
}
.section--dark .step::before { background: var(--ink); color: var(--jade-2); }
.step h3 { font-size: 1.05rem; margin: 0 0 6px; }
.step p { font-size: 14.5px; margin: 0; }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------- 价格 */

.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: start; }
.plan { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 28px; }
.plan--best { border-color: var(--jade); box-shadow: 0 26px 60px -30px rgba(31, 111, 92, .6); position: relative; }
.plan--best::after { content: attr(data-flag); position: absolute; top: -12px; left: 28px; background: var(--jade); color: #fff; font-size: 12px; font-weight: 600; padding: 3px 12px; border-radius: 999px; }
.plan__name { font-size: 14px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.plan__price { font-family: var(--display); font-size: 2.5rem; color: var(--ink); font-weight: 600; margin: 6px 0 2px; }
.plan__price span { font-size: 1rem; color: var(--muted); font-family: var(--sans); font-weight: 400; }
.plan ul { list-style: none; padding: 0; margin: 20px 0 26px; display: grid; gap: 10px; font-size: 14.6px; }
.plan li { display: flex; gap: 9px; align-items: flex-start; color: var(--ink-2); }
.plan li svg { flex: none; margin-top: 4px; color: var(--jade-2); }
@media (max-width: 860px) { .plans { grid-template-columns: 1fr; } }

.free-note { margin-top: 26px; display: flex; gap: 16px; align-items: flex-start; background: var(--jade-soft); border-radius: var(--radius); padding: 20px 22px; font-size: 14.6px; color: var(--ink-2); }
.free-note b { color: var(--jade); }

/* ---------------------------------------------------------- 评价 */

.quotes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.quote { background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .1); border-radius: var(--radius); padding: 26px; }
.quote p { color: #e4ece8; font-size: 15.2px; }
.quote footer { font-size: 13.5px; color: #8fa39b; margin-top: 14px; }
.quote__stars { color: var(--gold); letter-spacing: 3px; font-size: 14px; margin-bottom: 12px; }
@media (max-width: 860px) { .quotes { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------- FAQ */

.faq { max-width: 820px; margin-inline: auto; }
.faq details { border-bottom: 1px solid var(--line); padding: 4px 0; }
.faq summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 18px; align-items: center; padding: 18px 0; font-family: var(--display); font-size: 1.08rem; color: var(--ink); font-weight: 600; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; color: var(--jade); flex: none; transition: transform .2s; line-height: 1; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details > div { padding: 0 0 20px; font-size: 15.2px; max-width: 68ch; }

/* ---------------------------------------------------------- 合规条 */

.disclaim { background: var(--cream); border: 1px solid var(--line); border-radius: 14px; padding: 20px 24px; font-size: 13.6px; color: var(--muted); line-height: 1.7; }
.disclaim b { color: var(--ink-2); }

/* ---------------------------------------------------------- CTA / 页脚 */

.cta-band { background: linear-gradient(120deg, var(--jade) 0%, #14584a 55%, var(--ink) 100%); color: #fff; border-radius: 26px; padding: clamp(34px, 5vw, 60px); display: grid; grid-template-columns: 1.4fr auto; gap: 28px; align-items: center; }
.cta-band h2 { color: #fff; }
.cta-band p { color: #d6e6e0; margin: 0; }
@media (max-width: 760px) { .cta-band { grid-template-columns: 1fr; } }

.footer { background: var(--ink); color: #93a59e; padding: 62px 0 30px; font-size: 14.4px; }
.footer a { color: #c6d5cf; }
.footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 34px; }
.footer h4 { color: #fff; font-family: var(--sans); font-size: 13px; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 14px; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 9px; }
.footer__bottom { margin-top: 46px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .1); display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; font-size: 13px; color: #6f817a; }
@media (max-width: 800px) { .footer__grid { grid-template-columns: 1fr 1fr; } }

/* ---------------------------------------------------------- 动效 */

/* 滚动进场只在 JS 可用时生效；没有 JS 或爬虫抓取时正文必须完整可见 */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .btn, .card { transition: none; }
}

/* 打印与无 JS 兜底：正文必须完整可读 */
@media print { .nav, .cta-band, .phone { display: none; } .reveal { opacity: 1 !important; } }

/* ==== 追加分区：协议中心 /legal 与节气养生 /jieqi 页面专用（2026-10 新增，勿混入上方既有规则） ==== */

.crumb { font-size: 13px; color: var(--muted); margin-bottom: 18px; }
.crumb a { color: var(--muted); }
.crumb a:hover { color: var(--jade); }
.crumb__sep { margin: 0 8px; color: var(--line); }

.doc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 40px; }
.doc-card { color: inherit; display: block; }
.doc-card:hover { text-decoration: none; }
.doc-card__meta { margin-top: 14px; font-size: 12.8px; color: var(--muted); }
@media (max-width: 900px) { .doc-grid { grid-template-columns: 1fr; } }

.doc-badges { display: flex; flex-wrap: wrap; gap: 10px; margin: 6px 0 18px; }
.doc-badge { background: var(--jade-soft); color: var(--jade); border-radius: 999px; padding: 6px 14px; font-size: 13px; font-weight: 600; }
.legal-nav { display: flex; flex-wrap: wrap; gap: 10px; margin: 6px 0 34px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.doc-chip { background: var(--white); border: 1px solid var(--line); border-radius: 999px; padding: 7px 15px; font-size: 13.5px; color: var(--ink-2); }
.doc-chip:hover { border-color: var(--jade); color: var(--jade); text-decoration: none; }
.doc-chip.is-active { background: var(--jade); border-color: var(--jade); color: #fff; }

.doc-body { max-width: 78ch; }
.doc-body h2 { font-size: 1.22rem; margin: 34px 0 12px; }
.doc-body p { font-size: 15.3px; }
.doc-body .doc__toc { margin: 2px 0; font-size: 14.6px; color: var(--ink-2); }
.doc-foot { max-width: 78ch; margin-top: 46px; padding-top: 26px; border-top: 1px solid var(--line); display: grid; gap: 14px; justify-items: start; }
.doc-foot__note { font-size: 13.4px; color: var(--muted); }

.jq-article { max-width: 820px; }
.jq-period { font-family: var(--sans); font-size: 15px; font-weight: 400; color: var(--muted); margin-left: 14px; }
.jq-focus { margin: 22px 0 6px; display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 14.5px; color: var(--ink-2); }
.jq-focus .chip { font-size: 13px; padding: 5px 13px; }
.jq-list { padding-left: 0; list-style: none; margin: 6px 0 10px; display: grid; gap: 10px; }
.jq-list li { background: var(--cream); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; font-size: 14.6px; color: var(--ink-2); }
.jq-season { margin: 46px 0 4px; font-size: 1.4rem; }
.jq-season__note { color: var(--muted); font-size: 14px; margin-bottom: 18px; }
.jq-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.jq-card { display: grid; gap: 3px; background: var(--white); border: 1px solid var(--line); border-radius: 14px; padding: 16px 14px; color: inherit; transition: transform .18s, border-color .18s, box-shadow .18s; }
.jq-card:hover { transform: translateY(-2px); border-color: #cfe0d9; box-shadow: var(--shadow-s); text-decoration: none; }
.jq-card b { font-family: var(--display); font-size: 1.06rem; color: var(--ink); }
.jq-card > span { font-size: 12.3px; color: var(--muted); }
.jq-card__focus { color: var(--jade) !important; font-weight: 600; }
@media (max-width: 980px) { .jq-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 560px) { .jq-grid { grid-template-columns: repeat(2, 1fr); } }

.jq-cta { margin-top: 38px; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.jq-cta b { color: var(--jade); }
@media (max-width: 620px) { .jq-cta { flex-direction: column; align-items: flex-start; } }

.pager { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; margin-top: 36px; font-size: 14.4px; }

/* 页脚新增「条款与隐私 / 节气养生」两栏后需要五列才不留空位（覆盖上方既有 4 列声明） */
@media (min-width: 801px) { .footer__grid { grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr; } }