/* ============================================================
   茶语书香 · 全站样式 v6
   暖米宣纸底 / 暖墨 / 竹青 / 印章红 / 细金线
   ============================================================ */
:root {
  --paper: #faf6ef;
  --paper-deep: #f3ecdf;
  --card: #fffdf8;
  --ink: #2e2a23;
  --ink-body: #46403a;
  --ink-soft: #6f675c;
  --ink-faint: #a29788;
  --dai: #3f5b4e;
  --zhu: #6e8f6a;
  --zhu-deep: #557451;
  --ochre: #9c5a3c;
  --seal: #a64b3a;
  --gold: #b8975f;
  --line: #e3dac8;
  --line-soft: #ece4d3;
  --shadow-soft: 0 12px 30px -14px rgba(122, 92, 52, 0.22), 0 2px 7px -3px rgba(122, 92, 52, 0.12);
  --shadow-hover: 0 20px 40px -16px rgba(122, 92, 52, 0.30), 0 4px 10px -4px rgba(122, 92, 52, 0.14);
  --radius: 14px;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-serif);
  background-color: var(--paper);
  background-image: radial-gradient(1200px 620px at 50% -8%, rgba(184, 151, 95, 0.07), transparent 62%);
  color: var(--ink-body);
  line-height: 1.95;
  font-size: 16px;
}

.paper-grain {
  position: fixed; inset: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 2; opacity: 0.3;
}
main, .site-footer { position: relative; z-index: 1; }

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
blockquote, figure { margin: 0; }

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--zhu-deep); outline-offset: 3px; border-radius: 2px;
}
section[id] { scroll-margin-top: 72px; }

.wrap { width: 100%; max-width: 1060px; margin: 0 auto; padding: 0 1.35rem; }
.wrap--narrow { max-width: 780px; }
.section { padding: 3.8rem 0; }
.section-warm {
  background-color: var(--paper-deep);
  background-image: radial-gradient(1000px 560px at 82% 0%, rgba(184, 151, 95, 0.06), transparent 60%);
}

/* ---------- 章节头 ---------- */
.sec-head { max-width: 640px; margin-bottom: 2.6rem; }
.sec-head--center { margin-left: auto; margin-right: auto; text-align: center; }

.seal-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.1em; height: 2.1em;
  background: var(--seal); color: #fdf6ec;
  border-radius: 4px; font-size: 0.98rem; font-weight: 600; line-height: 1;
  margin-bottom: 0.95rem;
  box-shadow: inset 0 0 0 2px rgba(253, 246, 236, 0.42), 0 4px 10px -5px rgba(166, 75, 58, 0.5);
}
.eyebrow {
  font-size: 0.78rem; letter-spacing: 0.42em; text-indent: 0.42em;
  color: var(--zhu-deep); margin: 0 0 0.6rem;
}
.sec-title {
  font-weight: 600; font-size: clamp(1.55rem, 6vw, 2.05rem);
  line-height: 1.55; letter-spacing: 0.1em; color: var(--ink); margin: 0 0 0.85rem;
}
.sec-lede { color: var(--ink-soft); font-size: 0.95rem; line-height: 2.05; margin: 0; }

.gold-rule {
  position: relative; width: 72px; height: 1px;
  background: var(--gold); border: 0; margin: 1.15rem auto; overflow: visible;
}
.gold-rule::after {
  content: ""; position: absolute; top: 50%; left: 50%;
  width: 7px; height: 7px; background: var(--gold);
  transform: translate(-50%, -50%) rotate(45deg);
  box-shadow: 0 0 0 3px var(--paper);
}
.gold-rule--left { margin-left: 0; margin-right: 0; }
.gold-rule--left::after { left: 0; transform: translateY(-50%) rotate(45deg); box-shadow: 0 0 0 3px var(--paper); }
.section-warm .gold-rule::after { box-shadow: 0 0 0 3px var(--paper-deep); }

/* ---------- 吸顶导航（多页） ---------- */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  background: rgba(250, 246, 239, 0.95);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 6px 20px -14px rgba(122, 92, 52, 0.35);
}
.site-nav nav {
  display: flex; align-items: center; justify-content: space-between; gap: 0.6rem;
  max-width: 1060px; margin: 0 auto; padding: 0.62rem 1.1rem;
}
.brand { display: inline-flex; align-items: center; gap: 0.55rem; white-space: nowrap; color: var(--ink); }
.brand-seal {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.8em; height: 1.8em;
  background: var(--seal); color: #fdf6ec;
  border-radius: 3px; font-size: 0.95rem; font-weight: 600; line-height: 1;
  box-shadow: inset 0 0 0 2px rgba(253, 246, 236, 0.4);
}
.brand-name { font-size: 1.06rem; letter-spacing: 0.22em; }

.nav-links {
  display: flex; flex-wrap: nowrap; align-items: center; min-width: 0;
  overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch;
}
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a {
  display: inline-block; padding: 0.35rem 0.32rem;
  font-size: 0.74rem; letter-spacing: 0.1em;
  color: var(--ink-soft); border-bottom: 1px solid transparent; white-space: nowrap;
  transition: color 0.25s ease, border-color 0.25s ease;
}
.nav-links a:hover { color: var(--seal); border-bottom-color: var(--seal); }
.nav-links a[aria-current="page"] { color: var(--seal); border-bottom-color: var(--seal); }
.nav-links a.nav-cta {
  color: #fdf6ec; background: var(--seal); border-radius: 3px;
  padding: 0.34rem 0.72rem; margin-left: 0.3rem; letter-spacing: 0.14em;
  box-shadow: 0 4px 10px -5px rgba(166, 75, 58, 0.6);
  border-bottom: 1px solid transparent;
}
.nav-links a.nav-cta:hover { color: #fdf6ec; background: #8f3c2e; }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: clamp(560px, 92svh, 840px);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; background: var(--paper-deep);
}
.hero--page { min-height: clamp(360px, 52svh, 520px); }
.hero-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-scrim {
  position: absolute; inset: 0;
  background: linear-gradient(180deg,
    rgba(66, 52, 36, 0.28) 0%,
    rgba(66, 52, 36, 0.12) 38%,
    rgba(46, 38, 28, 0.42) 78%,
    rgba(46, 38, 28, 0.58) 100%);
}
.hero-inner {
  position: relative; text-align: center; color: #fdf6ec;
  padding: 6.2rem 1.5rem 4.2rem; max-width: 720px;
}
.hero-seal {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.5em; height: 2.5em;
  background: var(--seal); color: #fdf6ec;
  border-radius: 4px; font-size: 1.05rem; font-weight: 600; line-height: 1;
  margin-bottom: 1.4rem;
  box-shadow: inset 0 0 0 2px rgba(253, 246, 236, 0.42), 0 6px 16px -6px rgba(40, 26, 16, 0.55);
}
.hero-title {
  font-size: clamp(2.5rem, 11.5vw, 4.3rem); font-weight: 600;
  letter-spacing: 0.22em; text-indent: 0.22em; margin: 0;
  text-shadow: 0 1px 16px rgba(40, 30, 18, 0.5);
}
.hero-sub {
  font-size: clamp(0.98rem, 3.7vw, 1.3rem); letter-spacing: 0.14em; line-height: 1.9;
  margin: 1.5rem 0 0; text-shadow: 0 1px 12px rgba(40, 30, 18, 0.55);
}
.hero-line { width: 56px; height: 1px; background: rgba(223, 196, 150, 0.9); border: 0; margin: 1.5rem auto; }
.hero-tag {
  font-size: 0.88rem; letter-spacing: 0.34em; text-indent: 0.34em; margin: 0;
  color: #f5e9d6; text-shadow: 0 1px 12px rgba(40, 30, 18, 0.55);
}
.hero-actions { margin-top: 2rem; display: flex; gap: 0.8rem; justify-content: center; flex-wrap: wrap; }

.vtext {
  position: absolute; top: 50%; right: 2.6rem; transform: translateY(-50%);
  writing-mode: vertical-rl; font-size: 0.86rem; letter-spacing: 0.6em;
  color: rgba(253, 246, 236, 0.85);
  text-shadow: 0 1px 10px rgba(40, 30, 18, 0.5);
  display: none;
}
.vtext .vseal {
  margin-top: 1rem; display: inline-flex; align-items: center; justify-content: center;
  width: 1.7em; height: 1.7em;
  background: var(--seal); color: #fdf6ec; border-radius: 2px;
  font-size: 0.8rem; letter-spacing: 0;
  box-shadow: inset 0 0 0 1px rgba(253, 246, 236, 0.4);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5em;
  padding: 0.72rem 1.5rem; border-radius: 4px;
  font-size: 0.9rem; letter-spacing: 0.16em; text-indent: 0.08em;
  border: 1px solid transparent; cursor: pointer; font-family: inherit;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--seal {
  color: #fdf6ec; background: var(--seal);
  box-shadow: 0 8px 18px -8px rgba(166, 75, 58, 0.65);
}
.btn--seal:hover { background: #8f3c2e; }
.btn--ghost {
  color: #fdf6ec; border-color: rgba(253, 246, 236, 0.65);
  background: rgba(46, 38, 28, 0.18);
}
.btn--ghost:hover { background: rgba(46, 38, 28, 0.34); }
.btn--line {
  color: var(--seal); border-color: var(--seal); background: transparent;
}
.btn--line:hover { background: rgba(166, 75, 58, 0.08); }

/* ---------- 通用卡片 ---------- */
.grid { display: grid; gap: 1.15rem; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.5rem 1.4rem;
  box-shadow: var(--shadow-soft);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.card .card-k {
  font-size: 0.74rem; letter-spacing: 0.3em; text-indent: 0.3em;
  color: var(--ink-faint); margin: 0 0 0.55rem;
}
.card .card-t { font-size: 1.06rem; font-weight: 600; color: var(--ink); letter-spacing: 0.08em; margin: 0 0 0.6rem; }
.card .card-d { font-size: 0.9rem; line-height: 2; color: var(--ink-body); margin: 0; }
.card .card-d b { color: var(--ochre); font-weight: 600; }

/* ---------- 茶卡 ---------- */
.tea-card { overflow: hidden; padding: 0; display: flex; flex-direction: column; }
.tea-card figure { position: relative; overflow: hidden; }
.tea-card figure img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; transition: transform 0.6s ease; }
.tea-card:hover figure img { transform: scale(1.045); }
.tea-no {
  position: absolute; top: 0.8rem; left: 0.8rem;
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 2em; height: 2em; padding: 0 0.4em;
  background: rgba(46, 38, 28, 0.78); color: #fdf6ec;
  border-radius: 3px; font-size: 0.82rem; letter-spacing: 0.1em;
}
.tea-body { padding: 1.25rem 1.3rem 1.4rem; display: flex; flex-direction: column; flex: 1; }
.tea-tag { font-size: 0.72rem; letter-spacing: 0.26em; text-indent: 0.26em; color: var(--zhu-deep); margin: 0 0 0.4rem; }
.tea-name { font-size: 1.18rem; font-weight: 600; color: var(--ink); letter-spacing: 0.1em; margin: 0 0 0.25rem; }
.tea-motto { font-size: 0.86rem; color: var(--ochre); letter-spacing: 0.06em; margin: 0 0 0.8rem; }
.tea-spec { font-size: 0.82rem; line-height: 2; color: var(--ink-soft); margin: 0 0 1rem; border-top: 1px dashed var(--line); padding-top: 0.85rem; }
.tea-spec b { color: var(--ink-body); font-weight: 600; }
.tea-fa {
  margin-top: auto; font-size: 0.86rem; color: var(--ink-body); line-height: 1.9;
  background: var(--paper-deep); border-left: 3px solid var(--gold);
  padding: 0.65rem 0.85rem; border-radius: 0 8px 8px 0;
}
.tea-fa em { font-style: normal; color: var(--ochre); font-weight: 600; }

/* ---------- 四时卡 ---------- */
.season-card { overflow: hidden; padding: 0; }
.season-card figure img { width: 100%; aspect-ratio: 9 / 13; object-fit: cover; }
.season-body { padding: 1.1rem 1.2rem 1.3rem; }
.season-k { font-size: 0.72rem; letter-spacing: 0.3em; text-indent: 0.3em; color: var(--zhu-deep); margin: 0 0 0.35rem; }
.season-t { font-size: 1.05rem; font-weight: 600; color: var(--ink); letter-spacing: 0.08em; margin: 0 0 0.5rem; }
.season-d { font-size: 0.85rem; line-height: 2; color: var(--ink-body); margin: 0; }

/* ---------- 书卡 ---------- */
.book-card { overflow: hidden; padding: 0; display: flex; flex-direction: column; }
.book-card figure img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; }
.book-body { padding: 1.25rem 1.3rem 1.4rem; display: flex; flex-direction: column; flex: 1; }
.book-no { font-size: 0.74rem; letter-spacing: 0.3em; text-indent: 0.3em; color: var(--ink-faint); margin: 0 0 0.35rem; }
.book-t { font-size: 1.1rem; font-weight: 600; color: var(--ink); letter-spacing: 0.06em; margin: 0 0 0.6rem; }
.book-d { font-size: 0.88rem; line-height: 2; color: var(--ink-body); margin: 0 0 0.9rem; }
.book-pair {
  margin-top: auto; font-size: 0.84rem; line-height: 1.9; color: var(--ink-body);
  background: var(--paper-deep); border-left: 3px solid var(--zhu);
  padding: 0.6rem 0.85rem; border-radius: 0 8px 8px 0;
}
.book-pair b { color: var(--zhu-deep); font-weight: 600; }

/* ---------- 工序 ---------- */
.craft-row {
  display: grid; grid-template-columns: 3.4rem 1fr; gap: 1.1rem;
  padding: 1.35rem 0; border-bottom: 1px dashed var(--line);
}
.craft-row:last-of-type { border-bottom: 0; }
.craft-no {
  display: inline-flex; align-items: center; justify-content: center;
  width: 3.4rem; height: 3.4rem; border: 1px solid var(--gold); border-radius: 50%;
  color: var(--ochre); font-size: 1.05rem; font-weight: 600; background: var(--card);
}
.craft-t { font-size: 1.05rem; font-weight: 600; color: var(--ink); letter-spacing: 0.1em; margin: 0 0 0.4rem; }
.craft-d { font-size: 0.9rem; line-height: 2; color: var(--ink-body); margin: 0 0 0.5rem; }
.craft-q { font-size: 0.85rem; color: var(--ochre); margin: 0; }
.craft-q::before { content: "「"; }
.craft-q::after { content: "」"; }

/* ---------- 序言 / 图文并排 ---------- */
.duo { display: grid; grid-template-columns: 5fr 6fr; gap: 2.2rem; align-items: center; }
.duo--rev { grid-template-columns: 6fr 5fr; }
.duo figure { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-soft); }
.duo figure img { width: 100%; object-fit: cover; }
.duo .duo-txt .sec-title { margin-top: 0.4rem; }
.duo p { font-size: 0.94rem; line-height: 2.15; color: var(--ink-body); margin: 0 0 1rem; }
.duo p:last-child { margin-bottom: 0; }

.pull-quote {
  max-width: 640px; margin: 2.4rem auto 0; text-align: center;
  font-size: 1.12rem; letter-spacing: 0.12em; line-height: 2.1; color: var(--ink);
}
.pull-quote footer { font-size: 0.82rem; color: var(--ink-faint); letter-spacing: 0.2em; margin-top: 0.7rem; }

/* ---------- 共读 · 课表 ---------- */
.day-row {
  display: grid; grid-template-columns: 3.2rem 1fr; gap: 1rem;
  padding: 1.15rem 0; border-bottom: 1px dashed var(--line);
}
.day-row:last-of-type { border-bottom: 0; }
.day-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 3.2rem; height: 3.2rem;
  background: var(--seal); color: #fdf6ec; border-radius: 4px;
  font-size: 1.2rem; font-weight: 600;
  box-shadow: inset 0 0 0 2px rgba(253, 246, 236, 0.4);
}
.day-t { font-size: 1.02rem; font-weight: 600; color: var(--ink); letter-spacing: 0.06em; margin: 0 0 0.3rem; }
.day-q { font-size: 0.84rem; color: var(--ochre); margin: 0 0 0.35rem; }
.day-q::before { content: "「"; }
.day-q::after { content: "」"; }
.day-d { font-size: 0.88rem; line-height: 1.95; color: var(--ink-body); margin: 0; }

.info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.1rem; }

/* ---------- 故事页 · 长文 ---------- */
.prose { max-width: 680px; margin: 0 auto; }
.prose h2 {
  font-size: 1.3rem; font-weight: 600; color: var(--ink);
  letter-spacing: 0.14em; margin: 3rem 0 1.2rem; text-align: center;
}
.prose h2 .h2-no { color: var(--ochre); margin-right: 0.6em; }
.prose p { font-size: 0.98rem; line-height: 2.25; margin: 0 0 1.35rem; text-align: justify; }
.prose p.lede { color: var(--ink-soft); font-size: 0.94rem; letter-spacing: 0.05em; }
.prose blockquote {
  border-left: 3px solid var(--gold); background: var(--paper-deep);
  padding: 1rem 1.2rem; border-radius: 0 10px 10px 0; margin: 1.8rem 0;
  font-size: 0.95rem; line-height: 2.1; color: var(--ink);
}
.prose .prose-img { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-soft); margin: 2.2rem 0; }
.prose .prose-img img { width: 100%; object-fit: cover; }
.prose figcaption {
  text-align: center; font-size: 0.8rem; color: var(--ink-faint);
  letter-spacing: 0.18em; padding: 0.7rem 0 0.2rem;
}
.prose .end-mark {
  text-align: center; color: var(--seal); font-size: 1.3rem; letter-spacing: 0.5em;
  text-indent: 0.5em; margin: 2.6rem 0 0;
}

/* ---------- 购茶指南 ---------- */
.buy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.15rem; }
.buy-card { text-align: center; }
.buy-card .seal-mark { margin-bottom: 0.9rem; }
.note-strip {
  max-width: 780px; margin: 1.8rem auto 0; display: grid; gap: 0.7rem;
}
.note-strip .note {
  background: var(--card); border: 1px dashed var(--line); border-radius: 10px;
  padding: 0.8rem 1.1rem; font-size: 0.86rem; line-height: 1.95; color: var(--ink-soft);
}
.note-strip .note b { color: var(--ochre); font-weight: 600; margin-right: 0.5em; }

/* ---------- 三平台矩阵 ---------- */
.plat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.15rem; }
.plat-card { text-align: center; }
.plat-ico { font-size: 1.5rem; margin-bottom: 0.5rem; }
.plat-t { font-size: 0.98rem; font-weight: 600; color: var(--ink); letter-spacing: 0.1em; margin: 0 0 0.3rem; }
.plat-d { font-size: 0.83rem; line-height: 1.9; color: var(--ink-soft); margin: 0; }
.plat-d .mono { color: var(--seal); font-weight: 600; }

/* ---------- 微信号复制片 ---------- */
.wx-chip {
  display: inline-flex; align-items: center; gap: 0.7em;
  background: var(--card); border: 1px solid var(--gold); border-radius: 999px;
  padding: 0.5rem 0.6rem 0.5rem 1.2rem;
  box-shadow: var(--shadow-soft);
}
.wx-chip .wx-label { font-size: 0.8rem; color: var(--ink-faint); letter-spacing: 0.2em; }
.wx-chip .wx-num { font-size: 0.95rem; color: var(--ink); font-weight: 600; letter-spacing: 0.04em; }
.wx-chip button {
  border: 0; background: var(--seal); color: #fdf6ec;
  border-radius: 999px; padding: 0.42rem 0.95rem;
  font-size: 0.8rem; letter-spacing: 0.12em; cursor: pointer; font-family: inherit;
  transition: background 0.25s ease;
}
.wx-chip button:hover { background: #8f3c2e; }

/* ---------- 悬浮：加微信 ---------- */
.float-wx {
  position: fixed; right: 1.1rem; bottom: 1.3rem; z-index: 60;
  display: inline-flex; align-items: center; gap: 0.45em;
  background: var(--seal); color: #fdf6ec;
  border: 0; border-radius: 999px; padding: 0.68rem 1.15rem;
  font-size: 0.84rem; letter-spacing: 0.1em; cursor: pointer; font-family: inherit;
  box-shadow: 0 12px 26px -10px rgba(166, 75, 58, 0.7);
  transition: transform 0.25s ease, background 0.25s ease;
}
.float-wx:hover { transform: translateY(-2px); background: #8f3c2e; }

/* toast */
.toast {
  position: fixed; left: 50%; bottom: 5.4rem; transform: translateX(-50%) translateY(16px);
  background: rgba(46, 38, 28, 0.92); color: #fdf6ec;
  border-radius: 6px; padding: 0.6rem 1.2rem;
  font-size: 0.85rem; letter-spacing: 0.12em;
  opacity: 0; pointer-events: none; transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 80;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 页脚 ---------- */
.site-footer {
  background: linear-gradient(180deg, #33291d 0%, #262019 100%);
  color: #e8ddc8; padding: 3.4rem 0 2.4rem; margin-top: 1rem;
}
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(168px, 1fr)); gap: 1.2rem; margin-bottom: 2.4rem; }
.footer-item { text-align: center; padding: 1.2rem 0.8rem; border: 1px solid rgba(232, 221, 200, 0.16); border-radius: 12px; }
.footer-item .f-label { font-size: 0.74rem; letter-spacing: 0.34em; text-indent: 0.34em; color: rgba(232, 221, 200, 0.55); margin: 0 0 0.5rem; }
.footer-item .f-name { font-size: 0.98rem; letter-spacing: 0.1em; margin: 0; color: #f5ecd9; overflow-wrap: anywhere; }
.footer-brand { text-align: center; }
.footer-brand .f-seal {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.4em; height: 2.4em; background: var(--seal); color: #fdf6ec;
  border-radius: 4px; font-size: 1.15rem; font-weight: 600;
  box-shadow: inset 0 0 0 2px rgba(253, 246, 236, 0.4);
  margin-bottom: 1rem;
}
.footer-brand .f-name { font-size: 1.2rem; letter-spacing: 0.4em; text-indent: 0.4em; margin: 0 0 0.6rem; color: #f5ecd9; }
.footer-brand .f-line { font-size: 0.85rem; letter-spacing: 0.14em; color: rgba(232, 221, 200, 0.6); margin: 0 0 1.6rem; }
.footer-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.4rem 1.3rem; font-size: 0.78rem; letter-spacing: 0.12em; color: rgba(232, 221, 200, 0.55); }
.footer-nav a:hover { color: #f5ecd9; }

/* ---------- 响应式 ---------- */
@media (max-width: 920px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .duo, .duo--rev { grid-template-columns: 1fr; gap: 1.6rem; }
  .buy-grid, .plat-grid { grid-template-columns: 1fr; max-width: 480px; margin-left: auto; margin-right: auto; }
}
@media (max-width: 640px) {
  body { font-size: 15px; }
  .section { padding: 2.8rem 0; }
  .grid--2, .grid--3, .grid--4, .info-grid { grid-template-columns: 1fr; }
  .hero-inner { padding: 5.4rem 1.2rem 3.4rem; }
  .craft-row, .day-row { grid-template-columns: 2.7rem 1fr; gap: 0.8rem; }
  .craft-no, .day-badge { width: 2.7rem; height: 2.7rem; font-size: 0.95rem; }
  .footer-grid { grid-template-columns: 1fr; max-width: 380px; margin-left: auto; margin-right: auto; }
  .nav-links a { font-size: 0.72rem; padding: 0.35rem 0.28rem; }
  .brand-name { font-size: 0.98rem; letter-spacing: 0.14em; }
}

/* ============================================================
   v7 增补（吸收 v3 小样的内容资产）
   ============================================================ */

/* ---------- 序言金句 ---------- */
.preface-motto {
  font-size: 1.08rem; font-weight: 600; letter-spacing: 0.12em;
  line-height: 2; color: var(--dai); margin: 0 0 1.2rem;
}

/* ---------- 父亲的五十年 · 时间轴 ---------- */
.timeline { margin: 0 0 1.6rem; }
.tl-item {
  position: relative; padding: 0 0 1.35rem 1.6rem;
  border-left: 1px solid var(--gold); margin-left: 0.42rem;
}
.tl-item:last-child { border-left-color: transparent; padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: -5px; top: 0.55em;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--paper-deep); border: 2px solid var(--ochre);
}
.tl-time { font-size: 0.82rem; letter-spacing: 0.18em; color: var(--ochre); margin: 0 0 0.25rem; }
.tl-text { margin: 0; font-size: 0.9rem; line-height: 2; color: var(--ink-body); }

/* ---------- 慢生活主张（全幅图区） ---------- */
.manifesto { position: relative; overflow: hidden; background: var(--paper-deep); }
.manifesto-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.manifesto-scrim {
  position: absolute; inset: 0;
  background: linear-gradient(180deg,
    rgba(46, 38, 28, 0.46) 0%,
    rgba(46, 38, 28, 0.34) 50%,
    rgba(46, 38, 28, 0.55) 100%);
}
.manifesto-inner {
  position: relative; text-align: center; color: #fdf6ec;
  padding: 4.8rem 1.5rem; max-width: 680px; margin: 0 auto;
}
.manifesto-title {
  font-size: clamp(1.7rem, 6.4vw, 2.5rem); font-weight: 600;
  letter-spacing: 0.2em; text-indent: 0.2em; margin: 0 0 1.6rem;
  text-shadow: 0 1px 14px rgba(40, 30, 18, 0.5);
}
.manifesto-lines {
  font-size: 0.98rem; line-height: 2.35; letter-spacing: 0.14em;
  margin: 0; color: #f5e9d6; text-shadow: 0 1px 12px rgba(40, 30, 18, 0.55);
}

/* ---------- 延伸书单 ---------- */
.more-books { max-width: 780px; margin: 1.7rem auto 0; }
.mb-head {
  text-align: center; font-size: 0.8rem; letter-spacing: 0.3em; text-indent: 0.3em;
  color: var(--ink-faint); margin: 0 0 1rem;
}
.mb-item {
  background: var(--card); border: 1px dashed var(--line); border-radius: 10px;
  padding: 1rem 1.2rem; font-size: 0.88rem; line-height: 2;
  color: var(--ink-body); margin: 0 0 0.8rem;
}
.mb-item b { color: var(--ink); font-weight: 600; margin-right: 0.4em; }
.mb-item span { display: block; color: var(--zhu-deep); font-size: 0.82rem; }

/* ---------- 平台名说明 ---------- */
.plat-note {
  text-align: center; font-size: 0.84rem; letter-spacing: 0.06em;
  color: var(--ink-soft); margin: -1.6rem auto 1.8rem; max-width: 560px;
}

/* ---------- 六道工序 · 流水线 ---------- */
.craft-flow { display: grid; grid-template-columns: 1fr; gap: 1.1rem; margin-top: 0.4rem; }
.craft-step {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow-soft);
  padding: 1.4rem 1.2rem 1.3rem; text-align: center;
}
.craft-node {
  width: 3.1rem; height: 3.1rem; margin: 0 auto 0.85rem;
  border: 1px solid var(--gold); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--paper); color: var(--ochre);
  font-weight: 600; font-size: 1.05rem;
}
.craft-step .craft-t { font-size: 1.08rem; }
.craft-step .craft-d { font-size: 0.86rem; }
@media (min-width: 720px) {
  .craft-flow { grid-template-columns: repeat(3, 1fr); gap: 1rem; }
}
@media (min-width: 1020px) {
  .craft-flow { grid-template-columns: repeat(6, 1fr); gap: 0.8rem; position: relative; }
  .craft-flow::before {
    content: ""; position: absolute; top: 3rem; left: 9%; right: 9%;
    height: 1px; background: var(--gold); z-index: 0;
  }
  .craft-step { position: relative; z-index: 1; padding: 1.3rem 0.85rem 1.2rem; }
}

/* ---------- v8 新增：读者常问 ---------- */
.faq-list { max-width: 840px; margin: 0 auto; }
.faq-item {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); margin-bottom: 0.7rem; overflow: hidden;
}
.faq-item > summary {
  cursor: pointer; padding: 1rem 1.3rem; font-weight: 600;
  font-size: 1.02rem; color: var(--ink); line-height: 1.6;
  list-style: none; display: flex; justify-content: space-between;
  align-items: center; gap: 1rem;
}
.faq-item > summary::-webkit-details-marker { display: none; }
.faq-item > summary::after {
  content: "＋"; color: var(--ochre); font-size: 1.05rem;
  flex: 0 0 auto; font-weight: 400;
}
.faq-item[open] > summary::after { content: "－"; }
.faq-item > summary:hover { background: var(--paper-deep); }
.faq-a { padding: 0 1.3rem 1.2rem; color: var(--ink-body); line-height: 1.95; font-size: 0.97rem; }
.faq-a p { margin-bottom: 0.6rem; }
.faq-a p:last-child { margin-bottom: 0; }

/* ---------- v8 新增：书茶橱窗说明 ---------- */
.shop-note {
  margin-top: 1.7rem; padding: 1.15rem 1.4rem; background: var(--card);
  border: 1px solid var(--line); border-left: 3px solid var(--gold);
  border-radius: var(--radius); font-size: 0.95rem;
  color: var(--ink-body); line-height: 1.9;
}
.shop-note b { color: var(--seal); }

/* ---------- v8 新增：当季标记 ---------- */
.now-badge {
  display: inline-block; font-size: 0.72rem; letter-spacing: 0.12em;
  color: #fff; background: var(--seal); border-radius: 20px;
  padding: 0.15rem 0.65rem; vertical-align: middle; margin-left: 0.5rem;
}
.season-card--now { border: 1px solid var(--gold); box-shadow: var(--shadow-soft); }
.season-now-line {
  margin-top: 0.55rem; font-size: 0.86rem; color: var(--seal);
  font-weight: 600; letter-spacing: 0.02em;
}

/* ---------- 打印 ---------- */
@media print {
  .site-nav { position: static; box-shadow: none; }
  .hero, .manifesto { min-height: auto; display: block; overflow: visible; }
  .hero-img, .manifesto-img { position: static; height: auto; max-height: 6.5cm; }
  .hero-scrim, .manifesto-scrim, .vtext, .float-wx, .toast, .paper-grain { display: none !important; }
  .hero-inner, .manifesto-inner { position: static; color: var(--ink); padding: 1.2rem 0 0.5rem; }
  .hero-title, .hero-sub, .hero-tag, .manifesto-title, .manifesto-lines { color: var(--ink); text-shadow: none; }
  .section { padding: 1.4rem 0; }
  .section-warm { background: var(--paper); }
  .card, .tl-item, .craft-step { break-inside: avoid; }
}

/* ---------- v9 新增：中英切换 ---------- */
.lang-switch {
  font-size: 0.78rem; letter-spacing: 0.08em;
  border: 1px solid var(--line); border-radius: 20px;
  padding: 0.22rem 0.7rem; color: var(--zhu-deep); white-space: nowrap;
}
.lang-switch:hover { border-color: var(--seal); color: var(--seal); }

/* ---------- v9.2 新增：实拍照片墙 + 雅化微调 ---------- */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}
.photo-frame {
  display: flex; flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  padding: 0.6rem;
  text-decoration: none; color: inherit;
  box-shadow: var(--shadow-soft);
  transition: transform .35s ease, box-shadow .35s ease;
}
.photo-frame:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.photo-frame img {
  width: 100%; aspect-ratio: 3 / 4; object-fit: cover;
  display: block; border: 1px solid var(--line-soft);
}
.photo-frame figcaption { padding: 0.65rem 0.2rem 0.3rem; text-align: center; }
.photo-frame figcaption span { display: block; font-size: 0.95rem; color: var(--ink); letter-spacing: 0.12em; }
.photo-frame figcaption em {
  display: block; font-style: normal; font-size: 0.78rem; color: var(--ink-faint);
  letter-spacing: 0.14em; margin-top: 0.18rem;
}
@media (max-width: 900px) { .photo-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .photo-grid { grid-template-columns: 1fr; } .photo-frame img { aspect-ratio: 4 / 3; } }

/* 雅化微调：字距与呼吸感 */
body { letter-spacing: 0.015em; }
.hero-title { letter-spacing: 0.22em; }
.sec-title, .card-t, .tea-name { letter-spacing: 0.08em; }
.eyebrow { letter-spacing: 0.42em; }
.brand-name { letter-spacing: 0.32em; }
.btn { letter-spacing: 0.16em; }

.video-fig video { width: 100%; display: block; border: 1px solid var(--line-soft); background: #000; }

/* ==== 四幕实拍叙事 ==== */
.act-head{display:flex;align-items:baseline;gap:.9rem;margin:3.4rem 0 1.6rem;border-bottom:1px solid rgba(0,0,0,.08);padding-bottom:.9rem}
.act-head:first-of-type{margin-top:.5rem}
.act-no{font-size:2rem;color:var(--seal);line-height:1;font-weight:700}
.act-title{font-size:1.3rem;font-weight:700;letter-spacing:.14em;margin:0}
.act-sub{color:var(--ink-soft);font-size:.92rem;margin:0 0 0 auto;text-align:right}
@media (max-width:640px){.act-head{flex-wrap:wrap}.act-sub{margin:.4rem 0 0;width:100%;text-align:left}}
.photo-grid .video-fig video{width:100%;display:block;border-radius:var(--radius,10px)}

/* ---------- v10 新增：喜马拉雅听书 ---------- */
.listen-card {
  margin-top: 1.7rem; padding: 1.3rem 1.5rem;
  background: var(--card); border: 1px solid var(--line); border-left: 3px solid var(--seal);
  border-radius: var(--radius); line-height: 1.9;
}
.lc-head { font-weight: 700; letter-spacing: 0.08em; margin: 0 0 0.4rem; color: var(--ink); }
.lc-d { font-size: 0.92rem; color: var(--ink-body); margin: 0 0 0.5rem; }
.lc-link { margin: 0; font-size: 0.92rem; }
.lc-link a { color: var(--seal); font-weight: 600; text-decoration: none; border-bottom: 1px solid currentColor; }
@media (min-width: 641px) { .plat-grid { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 641px) and (max-width: 920px) { .plat-grid { grid-template-columns: repeat(2, 1fr); } }

/* ============================================================
   v11 精修：面向高知读者的版面质感升级
   ============================================================ */
:root {
  --radius: 10px;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STZhongsong", "华文中宋", "STSong", "SimSun", serif;
  --shadow-soft: 0 1px 3px rgba(122, 92, 52, 0.05), 0 10px 26px -18px rgba(122, 92, 52, 0.20);
  --shadow-hover: 0 2px 6px -2px rgba(122, 92, 52, 0.08), 0 16px 34px -18px rgba(122, 92, 52, 0.28);
}

/* 留白更有气口 */
.section { padding: 4.6rem 0; }
@media (max-width: 640px) { .section { padding: 3.2rem 0; } }

/* 虚线一律改细实线——虚线是廉价感来源 */
.tea-spec, .note-strip .note, .mb-item { border: 1px solid var(--line-soft); }
.note-strip .note, .mb-item { border-left: 2px solid var(--gold); }
.craft-row, .day-row { border-bottom: 1px solid var(--line-soft); }
.act-head { border-bottom: 1px solid var(--line-soft); }

/* 卡片更收敛：小圆角、细阴影、轻悬浮 */
.card, .faq-item, .listen-card { border-radius: var(--radius); }
.card { box-shadow: var(--shadow-soft); }
.card:hover { transform: translateY(-2px); }
.btn, .nav-cta { border-radius: 2px; }

/* 印章字标：以字代图 */
.ico-seal {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.9em; height: 1.9em; margin-right: 0.5em;
  background: var(--seal); color: #fdf6ec;
  border-radius: 3px; font-size: 0.85rem; font-weight: 600; line-height: 1; letter-spacing: 0;
  box-shadow: inset 0 0 0 1.5px rgba(253, 246, 236, 0.4);
  vertical-align: -0.35em;
}
.ico-seal--inline { width: 1.7em; height: 1.7em; font-size: 0.8rem; }

/* 平台卡：圆形描边楷体字标，像茶庄印记 */
.plat-ico { font-size: 1rem; margin-bottom: 0.6rem; line-height: 1; }
.plat-ico .ico-seal {
  width: 2.2em; height: 2.2em; font-size: 1.05rem;
  background: transparent; color: var(--seal);
  border: 1px solid var(--seal); border-radius: 50%;
  box-shadow: none; vertical-align: 0; margin-right: 0;
  font-family: "Kaiti SC", "STKaiti", "KaiTi", "楷体", var(--font-serif);
}

/* 引文用楷体——父亲的话、工序引句 */
.tea-fa em, .craft-q, .day-q { font-family: "Kaiti SC", "STKaiti", "KaiTi", "楷体", var(--font-serif); }

/* 照片墙更精致：细框、统一暖调 */
.photo-frame { padding: 0.5rem; box-shadow: var(--shadow-soft); }
.photo-frame img { filter: saturate(0.95) contrast(0.98); }
.photo-frame figcaption span { letter-spacing: 0.16em; }

/* 细节 */
.sec-title { font-weight: 600; }
.faq-item > summary { letter-spacing: 0.06em; }
.footer-item { border-radius: 8px; }
.tea-no { letter-spacing: 0.14em; }

/* 页脚可点击名目（喜马拉雅直达） */
.footer-item .f-link { color: inherit; text-decoration: none; border-bottom: 1px solid rgba(232, 221, 200, 0.34); padding-bottom: 2px; transition: border-color 0.2s ease, color 0.2s ease; }
.footer-item .f-link:hover { color: #fff6e2; border-bottom-color: rgba(232, 221, 200, 0.85); }

/* 页脚按钮式入口（点击复制类） */
.footer-item button.f-link { background: none; border: 0; border-bottom: 1px solid rgba(232, 221, 200, 0.34); padding: 0 0 2px; font: inherit; letter-spacing: inherit; color: inherit; cursor: pointer; transition: border-color 0.2s ease, color 0.2s ease; }
.footer-item button.f-link:hover { color: #fff6e2; border-bottom-color: rgba(232, 221, 200, 0.85); }
.footer-item button.f-link:focus-visible { outline: 2px solid rgba(232, 221, 200, 0.6); outline-offset: 2px; }


/* ---------- v12：平台直达（阵地卡 + 页脚可点） ---------- */
.plat-card--go { display: block; text-decoration: none; color: inherit; cursor: pointer; }
a.plat-card--go:hover { border-color: var(--gold); }
button.plat-card--go { width: 100%; font-family: inherit; font-size: inherit; line-height: inherit; text-align: center; cursor: pointer; }
.plat-go { margin: 0.7rem 0 0; font-size: 0.75rem; letter-spacing: 0.08em; color: var(--seal); opacity: 0.78; transition: opacity 0.2s ease; }
.plat-card--go:hover .plat-go { opacity: 1; }
.footer-item .f-link.f-out { border-bottom-color: rgba(232, 221, 200, 0.55); }
.footer-item .f-go { font-size: 0.82em; margin-left: 0.22em; opacity: 0.7; }
.footer-item button.f-only-copy { margin-left: 0.5em; font-size: 0.72rem; letter-spacing: 0.04em; color: rgba(232, 221, 200, 0.62); background: none; border: 0; border-bottom: 1px solid rgba(232, 221, 200, 0.28); padding: 0 0 1px; cursor: pointer; transition: color 0.2s ease, border-color 0.2s ease; }
.footer-item button.f-only-copy:hover { color: #fff6e2; border-bottom-color: rgba(232, 221, 200, 0.7); }
.f-note { margin: 1.15rem auto 0; max-width: 46em; font-size: 0.74rem; line-height: 1.85; color: rgba(232, 221, 200, 0.6); text-align: center; }
@media (max-width: 640px) { .f-note { text-align: left; font-size: 0.72rem; } }

/* ---------- v14：页脚"不空白"——名称/号直接可见 ---------- */
.footer-item .f-val { display: block; margin-bottom: .35rem; }
.footer-item .f-chip { display: inline-block; }
.footer-item .f-chip:hover { color: #fff6e2; border-bottom-color: rgba(232, 221, 200, .9); }