:root{--c-primary:#3a7d44;}
@charset "utf-8";

/* ===========================================================
   茶叙 CHAXU · 新中式茶饮连锁
   样式表：宣纸米底 / 竹青细线 / 朱砂印章 / 留白意境
   =========================================================== */

:root {
  /* 色 */
  --paper: #f5efe1;          /* 宣纸米 */
  --paper-2: #efe7d5;        /* 宣纸米（深一档，用于区块交替） */
  --paper-3: #e7ddc8;        /* 最深，用于卡片底 */
  --ink: #26221e;            /* 墨 */
  --ink-2: #514b42;          /* 次级正文 */
  --ink-3: #7a7266;          /* 辅助说明 */
  --bamboo: #4a6b4f;         /* 竹青 */
  --bamboo-deep: #354f3a;
  --bamboo-soft: #dfe4da;
  --cinnabar: #c1453b;       /* 朱砂 */
  --cinnabar-deep: #9d3329;
  --line: rgba(74, 107, 79, .22);
  --line-strong: rgba(74, 107, 79, .45);

  /* 字 */
  --f-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --f-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --f-hand: "Ma Shan Zheng", "Kaiti SC", "KaiTi", cursive;

  /* 节奏 */
  --sp-1: .5rem;
  --sp-2: 1rem;
  --sp-3: 1.5rem;
  --sp-4: 2.25rem;
  --sp-5: 3.25rem;
  --sp-6: 5rem;
  --sp-7: 7rem;

  /* 动效 */
  --e-out-expo: cubic-bezier(.16, 1, .3, 1);
  --e-out-quart: cubic-bezier(.25, 1, .5, 1);
  --t-base: .62s;
  --t-slow: .95s;

  --radius: 2px;
  --maxw: 1240px;
}

/* ---------- 基础 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-sans);
  font-size: 1rem;          /* 16px 起 */
  font-weight: 300;
  line-height: 1.9;
  letter-spacing: .02em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; height: auto; }

a {
  color: inherit;
  text-decoration: none;
  transition: color .3s var(--e-out-quart);
}

h1, h2, h3, h4, h5 {
  font-family: var(--f-serif);
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: .06em;
  margin: 0;
}

p { margin: 0 0 1.05em; }
p:last-child { margin-bottom: 0; }

ul, ol { margin: 0; padding: 0; list-style: none; }

button { font: inherit; color: inherit; }

:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 3px;
  border-radius: 1px;
}

::selection {
  background: rgba(193, 69, 59, .18);
  color: var(--ink);
}

/* ---------- 版心与通用 ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 52px);
}

.skip-link {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 200;
  background: var(--bamboo);
  color: #f7f4ea;
  padding: .7rem 1.2rem;
  font-size: .9rem;
  transform: translateY(-280%);
  transition: transform .35s var(--e-out-quart);
}
.skip-link:focus { transform: translateY(0); }

/* 区块 */
.section {
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
  position: relative;
}
.section--tint { background: var(--paper-2); }
.section--line { border-top: 1px solid var(--line); }
.section--deep { background: var(--bamboo-deep); color: #efe9da; }

/* 竹青细线分隔（带菱形节点） */
.rule {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .9rem;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 52px);
}
.rule::before,
.rule::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--line);
}
.rule i {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  background: var(--bamboo);
  transform: rotate(45deg);
  opacity: .55;
}

/* 眉题 */
.eyebrow {
  font-family: var(--f-sans);
  font-size: .78rem;
  font-weight: 400;
  letter-spacing: .34em;
  text-transform: uppercase;
  color: var(--bamboo);
  margin: 0 0 1.1rem;
  display: flex;
  align-items: center;
  gap: .8rem;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--bamboo);
  flex: 0 0 auto;
}

.section-head { max-width: 46rem; margin-bottom: clamp(2.2rem, 4vw, 3.4rem); }
.section-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.section-head--center .eyebrow { justify-content: center; }

.section-title {
  font-size: clamp(1.6rem, 3.2vw, 2.35rem);
  margin-bottom: .9rem;
}
.section-desc {
  color: var(--ink-2);
  font-size: 1rem;
  max-width: 38rem;
}
.section-head--center .section-desc { margin-inline: auto; }

/* 手写点缀字 */
.hand {
  font-family: var(--f-hand);
  font-weight: 400;
  letter-spacing: .08em;
  color: var(--cinnabar);
}

/* 朱砂印章圆章 */
.seal {
  --size: 92px;
  width: var(--size);
  height: var(--size);
  flex: 0 0 auto;
  border: 1.5px solid var(--cinnabar);
  border-radius: 50%;
  color: var(--cinnabar);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-hand);
  font-size: calc(var(--size) * .34);
  line-height: 1.05;
  letter-spacing: .02em;
  text-align: center;
  transition: border-color .4s var(--e-out-quart);
}
.seal span {
  display: block;
  transform: rotate(-7deg);
  transition: transform .7s var(--e-out-expo);
}
.seal--sm { --size: 66px; }
.seal--lg { --size: 116px; }
a:hover > .seal span,
.seal:hover span { transform: rotate(0deg); }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  min-height: 48px;
  padding: .7rem 1.9rem;
  font-size: .95rem;
  letter-spacing: .12em;
  border: 1px solid var(--bamboo);
  background: var(--bamboo);
  color: #f6f2e6;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .45s var(--e-out-quart),
              color .45s var(--e-out-quart),
              border-color .45s var(--e-out-quart),
              transform .45s var(--e-out-quart);
}
.btn:hover { background: var(--bamboo-deep); border-color: var(--bamboo-deep); }
.btn:active { transform: translateY(1px); }

.btn--ghost { background: transparent; color: var(--bamboo); }
.btn--ghost:hover { background: transparent; color: var(--bamboo-deep); border-color: var(--bamboo-deep); }

.btn--cinnabar { background: var(--cinnabar); border-color: var(--cinnabar); }
.btn--cinnabar:hover { background: var(--cinnabar-deep); border-color: var(--cinnabar-deep); }

.btn--light { background: transparent; border-color: rgba(239, 233, 218, .55); color: #efe9da; }
.btn--light:hover { border-color: #efe9da; background: rgba(239, 233, 218, .08); }

.btn-row { display: flex; flex-wrap: wrap; gap: .9rem; }

/* 文字链接 */
.link-more {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-size: .92rem;
  letter-spacing: .1em;
  color: var(--bamboo);
  padding-bottom: 4px;
  border-bottom: 1px solid var(--line-strong);
  transition: gap .4s var(--e-out-quart), color .3s var(--e-out-quart), border-color .3s var(--e-out-quart);
}
.link-more::after { content: "→"; font-size: .85em; }
.link-more:hover { color: var(--cinnabar); border-color: var(--cinnabar); gap: .95rem; }

/* ---------- 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(245, 239, 225, .96);
  border-bottom: 1px solid transparent;
  transition: border-color .5s var(--e-out-quart), background .5s var(--e-out-quart);
}
.site-header.is-stuck { border-bottom-color: var(--line); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 78px;
}

.brand {
  display: flex;
  align-items: center;
  gap: .8rem;
  flex: 0 0 auto;
}
.brand img { height: 42px; width: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text b {
  font-family: var(--f-serif);
  font-size: 1.18rem;
  font-weight: 600;
  letter-spacing: .16em;
}
.brand-text span {
  font-size: .62rem;
  letter-spacing: .3em;
  color: var(--ink-3);
  text-transform: uppercase;
}

.nav { display: flex; align-items: center; gap: clamp(1rem, 2.4vw, 2.1rem); }
.nav a {
  position: relative;
  font-size: .93rem;
  letter-spacing: .1em;
  padding: .35rem 0;
  color: var(--ink);
  white-space: nowrap;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--bamboo);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .5s var(--e-out-expo);
}
.nav a:hover { color: var(--bamboo); }
.nav a:hover::after,
.nav a[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }
.nav a[aria-current="page"] { color: var(--bamboo); }

.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line-strong);
  background: transparent;
  border-radius: var(--radius);
  cursor: pointer;
  position: relative;
  flex: 0 0 auto;
}
.nav-toggle span {
  position: absolute;
  left: 50%;
  width: 20px;
  height: 1px;
  background: var(--ink);
  transform: translateX(-50%);
  transition: transform .45s var(--e-out-expo), opacity .3s var(--e-out-quart);
}
.nav-toggle span:nth-child(1) { top: 17px; }
.nav-toggle span:nth-child(2) { top: 22.5px; }
.nav-toggle span:nth-child(3) { top: 28px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateX(-50%) translateY(5.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateX(-50%) translateY(-5.5px) rotate(-45deg); }

/* ---------- 首屏（竖排 + 印章） ---------- */
.hero {
  position: relative;
  padding: clamp(2.5rem, 5vw, 4.5rem) 0 clamp(3rem, 6vw, 5.5rem);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(2rem, 4.5vw, 4rem);
  align-items: start;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: clamp(1.4rem, 3vw, 2.2rem);
}

.hero-col { display: flex; flex-direction: column; gap: clamp(1.6rem, 3vw, 2.4rem); }
.hero-body { max-width: 34rem; }

.hero-kicker {
  font-size: .76rem;
  letter-spacing: .3em;
  color: var(--bamboo);
  text-transform: uppercase;
  margin-bottom: 1.4rem;
}

/* 竖排主标题 */
.v-title {
  writing-mode: vertical-rl;
  text-orientation: upright;
  height: clamp(300px, 44vh, 460px);
  font-family: var(--f-serif);
  font-size: clamp(1.9rem, 3.4vw, 2.8rem);
  font-weight: 500;
  letter-spacing: .28em;
  line-height: 1.4;
  margin: 0;
  /* 竖排下两个 .v-line 各成一列，自右向左排列 */
  display: block;
}
.v-title .v-line { display: block; }
.v-title .v-line--accent { color: var(--bamboo); }

.hero-desc {
  font-size: 1.02rem;
  color: var(--ink-2);
  margin-bottom: 1.6rem;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .3rem 1.4rem;
  margin-bottom: 1.9rem;
  font-size: .85rem;
  color: var(--ink-3);
  letter-spacing: .08em;
}
.hero-meta span { display: inline-flex; align-items: center; gap: .5rem; }
.hero-meta span::before {
  content: "";
  width: 4px;
  height: 4px;
  background: var(--bamboo);
  transform: rotate(45deg);
}

.hero-figure { position: relative; }
.hero-figure img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: var(--radius);
}
.hero-figure figcaption {
  margin-top: .9rem;
  font-size: .8rem;
  letter-spacing: .14em;
  color: var(--ink-3);
  text-align: right;
}
.hero-seal { padding-left: .4rem; }

/* 首屏底部宣纸细纹装饰 */
.hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--line);
}

/* ---------- 横向产品条 ---------- */
.rail-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.2rem;
}
.rail-head .section-head { margin-bottom: 0; }
.mt-link { margin-top: 2.2rem; }
.mt-lg { margin-top: 2.6rem; }
.quote--lead {
  border-left-width: 2px;
  max-width: 44rem;
  margin-inline: auto;
  font-size: 1.15rem;
}

/* 简洁列表 */
.list-plain { margin: 1.2rem 0 0; }
.list-plain li {
  position: relative;
  padding-left: 1.3rem;
  margin-bottom: .55rem;
  font-size: .96rem;
  color: var(--ink-2);
}
.list-plain li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .85em;
  width: 6px;
  height: 6px;
  background: var(--bamboo);
  transform: rotate(45deg);
}
.rail-nav { display: flex; gap: .6rem; }
.rail-btn {
  width: 46px;
  height: 46px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--bamboo);
  border-radius: var(--radius);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: background .4s var(--e-out-quart), border-color .4s var(--e-out-quart), opacity .3s;
}
.rail-btn:hover { background: var(--bamboo-soft); border-color: var(--bamboo); }
.rail-btn[disabled] { opacity: .3; cursor: default; }

.rail {
  display: flex;
  gap: clamp(1.2rem, 2.6vw, 2.4rem);
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  padding: .4rem clamp(20px, 5vw, 52px) 1.6rem;
  margin: 0 calc(clamp(20px, 5vw, 52px) * -1);
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
  -webkit-overflow-scrolling: touch;
}
.rail::-webkit-scrollbar { height: 3px; }
.rail::-webkit-scrollbar-thumb { background: var(--line-strong); }
.rail::-webkit-scrollbar-track { background: transparent; }

.rail-item {
  flex: 0 0 auto;
  width: clamp(230px, 27vw, 292px);
  scroll-snap-align: start;
}
.rail-item .thumb {
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--paper-3);
  aspect-ratio: 1 / 1;
}
.rail-item:nth-child(odd) .thumb { border-radius: 50%; }
.rail-item .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.1s var(--e-out-expo), filter .6s var(--e-out-quart);
}
.rail-item:hover .thumb img { transform: scale(1.045); }

.rail-item h3 {
  margin: 1.15rem 0 .4rem;
  font-size: 1.12rem;
  letter-spacing: .1em;
}
.rail-item .en {
  font-family: var(--f-hand);
  color: var(--ink-3);
  font-size: .9rem;
  letter-spacing: .1em;
  margin-bottom: .55rem;
}
.rail-item p { font-size: .92rem; color: var(--ink-2); line-height: 1.85; }

/* ---------- 通用栅格 ---------- */
.grid { display: grid; gap: clamp(1.6rem, 3.4vw, 2.8rem); }
.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr 1fr; }

/* ---------- 理念 / 图文块 ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4.5vw, 4rem);
  align-items: center;
}
.split-figure img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: var(--radius);
}
.split-body h3 { font-size: clamp(1.35rem, 2.4vw, 1.85rem); margin-bottom: 1rem; }
.split-body p { color: var(--ink-2); }

.quote {
  margin: 2rem 0 0;
  padding-left: 1.4rem;
  border-left: 1px solid var(--line-strong);
  font-family: var(--f-serif);
  font-size: 1.05rem;
  color: var(--ink);
}
.quote cite {
  display: block;
  margin-top: .7rem;
  font-family: var(--f-sans);
  font-size: .82rem;
  font-style: normal;
  letter-spacing: .12em;
  color: var(--ink-3);
}

/* ---------- 制茶工艺（步骤） ---------- */
.steps { display: grid; grid-template-columns: 1fr; gap: 0; border-top: 1px solid var(--line); }
.step {
  padding: 2rem 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.4rem;
  align-items: start;
}
.step-num {
  font-family: var(--f-serif);
  font-size: 1.55rem;
  color: var(--bamboo);
  letter-spacing: .1em;
  line-height: 1.4;
}
.step h3 { font-size: 1.18rem; margin-bottom: .55rem; letter-spacing: .1em; }
.step p { font-size: .95rem; color: var(--ink-2); }
.steps--cont { margin-top: -1px; }

/* 竖排修饰标题（内页小标题） */
.v-label {
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-family: var(--f-serif);
  font-size: .95rem;
  letter-spacing: .3em;
  color: var(--bamboo);
  line-height: 1.6;
  max-height: 12rem;
}
@media (max-width: 899px) {
  .v-label {
    writing-mode: horizontal-tb;
    text-orientation: mixed;
    max-height: none;
    letter-spacing: .2em;
  }
}

/* ---------- 数据 ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.stat {
  background: var(--paper-2);
  padding: clamp(1.6rem, 3vw, 2.4rem) 1.4rem;
  text-align: center;
}
.stat b {
  display: block;
  font-family: var(--f-serif);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 500;
  color: var(--bamboo);
  letter-spacing: .04em;
  line-height: 1.2;
}
.stat b i { font-style: normal; font-size: .46em; margin-left: .25em; letter-spacing: .08em; }
.stat span {
  display: block;
  margin-top: .6rem;
  font-size: .87rem;
  letter-spacing: .16em;
  color: var(--ink-2);
}

/* ---------- 服务卡 ---------- */
.cards { display: grid; grid-template-columns: 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.cards--list { grid-template-columns: 1fr; }
@media (min-width: 900px) {
  .cards--list { grid-template-columns: repeat(2, 1fr); }
}
.card {
  background: var(--paper);
  padding: clamp(1.7rem, 3vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: .8rem;
  transition: background .5s var(--e-out-quart);
}
.section--tint .card { background: var(--paper-2); }
.card:hover { background: var(--paper-3); }
.card-index {
  font-family: var(--f-hand);
  font-size: 1.5rem;
  color: var(--cinnabar);
  line-height: 1;
}
.card h3 { font-size: 1.22rem; letter-spacing: .1em; }
.card .en { font-size: .74rem; letter-spacing: .26em; text-transform: uppercase; color: var(--ink-3); }
.card p { font-size: .94rem; color: var(--ink-2); flex: 1 1 auto; }
.card ul { margin-top: .2rem; }
.card ul li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .9rem;
  color: var(--ink-2);
  margin-bottom: .35rem;
}
.card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .85em;
  width: 5px;
  height: 5px;
  background: var(--bamboo);
  transform: rotate(45deg);
}
.card .link-more { align-self: flex-start; margin-top: .6rem; }

/* ---------- 服务详情 ---------- */
.flow { border-top: 1px solid var(--line); }
.flow-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  padding: 1.8rem 0;
  border-bottom: 1px solid var(--line);
}
.flow-item .no {
  width: 42px;
  height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-serif);
  font-size: .95rem;
  color: var(--bamboo);
  flex: 0 0 auto;
}
.flow-item .no--text {
  width: auto;
  height: auto;
  border: 0;
  border-radius: 0;
  font-size: 1.35rem;
  letter-spacing: .1em;
  padding-top: .35rem;
  min-width: 4.2rem;
}
.flow-item h3 { font-size: 1.08rem; margin-bottom: .45rem; letter-spacing: .1em; }
.flow-item p { font-size: .94rem; color: var(--ink-2); }

.adv { display: grid; grid-template-columns: 1fr; gap: 1.6rem; }
.adv-item { border-top: 1px solid var(--line); padding-top: 1.3rem; }
.adv-item h3 { font-size: 1.05rem; margin-bottom: .5rem; letter-spacing: .1em; }
.adv-item p { font-size: .93rem; color: var(--ink-2); }

.faq { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  padding: 1.3rem 2.6rem 1.3rem 0;
  font-family: var(--f-serif);
  font-size: 1.02rem;
  letter-spacing: .06em;
  cursor: pointer;
  position: relative;
  line-height: 1.7;
}
.faq-q::after {
  content: "";
  position: absolute;
  right: 4px;
  top: 1.95rem;
  width: 11px;
  height: 11px;
  border-right: 1px solid var(--bamboo);
  border-bottom: 1px solid var(--bamboo);
  transform: rotate(45deg);
  transition: transform .5s var(--e-out-expo);
}
.faq-q[aria-expanded="true"]::after { transform: rotate(225deg); }
.faq-a {
  overflow: hidden;
  max-height: 0;
  transition: max-height .6s var(--e-out-expo), opacity .5s var(--e-out-quart);
  opacity: 0;
}
.faq-item.is-open .faq-a { opacity: 1; }
.faq-a > div { padding: 0 0 1.4rem; font-size: .95rem; color: var(--ink-2); }

/* ---------- 案例 ---------- */
.case-list { display: grid; grid-template-columns: 1fr; gap: clamp(2rem, 4vw, 3rem); }
.case-item { display: block; }
.case-figure {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--paper-3);
  aspect-ratio: 4 / 3;
}
.case-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--e-out-expo);
}
.case-item:hover .case-figure img { transform: scale(1.05); }
.case-tag {
  position: absolute;
  left: 0;
  top: 1.1rem;
  background: var(--paper);
  color: var(--bamboo);
  font-size: .74rem;
  letter-spacing: .2em;
  padding: .35rem .9rem .35rem 1.1rem;
}
.case-item h3 { margin: 1.25rem 0 .5rem; font-size: 1.28rem; letter-spacing: .08em; }
.case-item h3.headline-title { font-size: clamp(1.4rem, 3vw, 2rem); }
.case-item .meta {
  font-size: .8rem;
  letter-spacing: .16em;
  color: var(--ink-3);
  margin-bottom: .6rem;
}
.case-item p { font-size: .95rem; color: var(--ink-2); }

.kv {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin: 0;
}
.kv-item { background: var(--paper-2); padding: 1.4rem 1.5rem; }
.kv-item dt {
  font-size: .78rem;
  letter-spacing: .22em;
  color: var(--bamboo);
  margin-bottom: .5rem;
}
.kv-item dd { margin: 0; font-size: .96rem; color: var(--ink-2); }

.result-list { display: grid; grid-template-columns: 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.result-item { background: var(--paper); padding: 1.5rem; }
.result-item b {
  display: block;
  font-family: var(--f-serif);
  font-size: 1.7rem;
  color: var(--bamboo);
  font-weight: 500;
  margin-bottom: .3rem;
}
.result-item b i { font-style: normal; font-size: .5em; margin-left: .25em; letter-spacing: .08em; }
.result-item span { font-size: .88rem; color: var(--ink-2); letter-spacing: .08em; }

/* ---------- 新闻 ---------- */
.news-list { border-top: 1px solid var(--line); }
.news-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: .6rem;
  padding: 1.7rem 0;
  border-bottom: 1px solid var(--line);
  transition: background .5s var(--e-out-quart);
}
.news-item:hover { background: rgba(74, 107, 79, .045); }
.news-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .8rem;
  font-size: .78rem;
  letter-spacing: .16em;
  color: var(--ink-3);
}
.news-tag {
  color: var(--bamboo);
  border: 1px solid var(--line-strong);
  padding: .12rem .7rem;
}
.news-item h3 { font-size: 1.16rem; letter-spacing: .08em; transition: color .35s var(--e-out-quart); }
.news-item:hover h3 { color: var(--bamboo); }
.news-item p { font-size: .93rem; color: var(--ink-2); }

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-bottom: 2.2rem;
}
.filter-chip {
  border: 1px solid var(--line-strong);
  background: transparent;
  padding: .5rem 1.1rem;
  font-size: .86rem;
  letter-spacing: .12em;
  color: var(--ink-2);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .4s var(--e-out-quart), color .4s var(--e-out-quart), border-color .4s var(--e-out-quart);
}
.filter-chip:hover { border-color: var(--bamboo); color: var(--bamboo); }
.filter-chip.is-active { background: var(--bamboo); border-color: var(--bamboo); color: #f6f2e6; }

/* ---------- 文章正文 ---------- */
.article { max-width: 44rem; }
.article h2 {
  font-size: 1.45rem;
  margin: 2.6rem 0 1rem;
  padding-left: .9rem;
  border-left: 2px solid var(--bamboo);
  letter-spacing: .08em;
}
.article h3 { font-size: 1.14rem; margin: 2rem 0 .8rem; letter-spacing: .08em; }
.article p { font-size: 1.02rem; color: var(--ink-2); margin-bottom: 1.3em; }
.article ul { margin: 0 0 1.4rem; }
.article ul li {
  position: relative;
  padding-left: 1.3rem;
  margin-bottom: .55rem;
  font-size: 1rem;
  color: var(--ink-2);
}
.article ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .85em;
  width: 6px;
  height: 6px;
  background: var(--bamboo);
  transform: rotate(45deg);
}
.article figure { margin: 2rem 0; }
.article figure img { width: 100%; border-radius: var(--radius); }
figcaption {
  margin-top: .8rem;
  font-size: .82rem;
  letter-spacing: .12em;
  color: var(--ink-3);
  text-align: center;
}
.article .lead {
  font-size: 1.08rem;
  color: var(--ink);
  font-family: var(--f-serif);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1.4rem;
  font-size: .8rem;
  letter-spacing: .16em;
  color: var(--ink-3);
  padding-bottom: 1.6rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2.2rem;
}

.pager {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--line);
  font-size: .9rem;
}
.pager a { color: var(--bamboo); letter-spacing: .08em; }
.pager a:hover { color: var(--cinnabar); }

.related { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
.related-item { border-top: 1px solid var(--line); padding-top: 1.2rem; }
.related-item .meta { font-size: .78rem; letter-spacing: .16em; color: var(--ink-3); margin-bottom: .5rem; }
.related-item h3 { font-size: 1.05rem; letter-spacing: .06em; }
.related-item:hover h3 { color: var(--bamboo); }

/* ---------- 门店 ---------- */
.shops { border-top: 1px solid var(--line); }
.shop {
  display: grid;
  grid-template-columns: 1fr;
  gap: .5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
}
.shop h3 { font-size: 1.1rem; letter-spacing: .1em; }
.shop dl { display: grid; grid-template-columns: auto 1fr; gap: .35rem 1rem; margin: .4rem 0 0; font-size: .92rem; }
.shop dt { color: var(--ink-3); letter-spacing: .14em; font-size: .82rem; }
.shop dd { margin: 0; color: var(--ink-2); }

/* ---------- 表单 ---------- */
.form-grid { display: grid; grid-template-columns: 1fr; gap: 1.6rem 1.8rem; }
.field { display: flex; flex-direction: column; }
.field--full { grid-column: 1 / -1; }
.field label {
  font-size: .82rem;
  letter-spacing: .16em;
  color: var(--ink-2);
  margin-bottom: .5rem;
}
.field label em { color: var(--cinnabar); font-style: normal; margin-left: .2rem; }
.field input,
.field select,
.field textarea {
  font-family: var(--f-sans);
  font-size: 1rem;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  padding: .7rem .2rem;
  border-radius: 0;
  transition: border-color .4s var(--e-out-quart), background .4s var(--e-out-quart);
  width: 100%;
}
.field textarea { min-height: 128px; resize: vertical; line-height: 1.8; }
.field select { appearance: none; cursor: pointer; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--bamboo);
  background: rgba(74, 107, 79, .05);
}
.field input::placeholder,
.field textarea::placeholder { color: var(--ink-3); }
.field .err {
  font-size: .78rem;
  color: var(--cinnabar-deep);
  margin-top: .4rem;
  min-height: 1rem;
  letter-spacing: .06em;
}
.field.is-error input,
.field.is-error textarea,
.field.is-error select { border-color: var(--cinnabar); }

.form-note { font-size: .84rem; color: var(--ink-3); margin-top: 1.2rem; line-height: 1.8; }
.form-msg {
  margin-top: 1.2rem;
  font-size: .92rem;
  padding: .9rem 1.1rem;
  border-left: 2px solid var(--bamboo);
  background: rgba(74, 107, 79, .08);
  display: none;
}
.form-msg.is-show { display: block; }

.consent { display: flex; align-items: flex-start; gap: .65rem; font-size: .86rem; color: var(--ink-2); }
.consent input { width: 17px; height: 17px; margin-top: .35rem; accent-color: var(--bamboo); flex: 0 0 auto; }

/* ---------- 联系信息 ---------- */
.info-list { border-top: 1px solid var(--line); }
.info-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: .3rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--line);
}
.info-item dt { font-size: .78rem; letter-spacing: .22em; color: var(--bamboo); }
.info-item dd { margin: 0; font-size: 1rem; color: var(--ink); }
.info-item dd small { display: block; font-size: .84rem; color: var(--ink-3); margin-top: .2rem; }

/* ---------- CTA ---------- */
.cta-band { text-align: center; }
.cta-band .hand { font-size: clamp(1.6rem, 4vw, 2.4rem); display: block; margin-bottom: 1rem; }
.cta-band h2 {
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  margin-bottom: 1rem;
  color: #f2ecdd;
}
.cta-band p { color: rgba(242, 236, 221, .82); max-width: 34rem; margin: 0 auto 2rem; }
.cta-band .btn-row { justify-content: center; }
.section--deep .eyebrow { color: rgba(242, 236, 221, .7); }
.section--deep .eyebrow::before { background: rgba(242, 236, 221, .5); }

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--ink);
  color: #d8d2c4;
  padding: clamp(3rem, 6vw, 4.5rem) 0 0;
  font-size: .92rem;
}
.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.4rem;
  padding-bottom: 2.8rem;
  border-bottom: 1px solid rgba(216, 210, 196, .16);
}
.footer-brand img { height: 40px; width: auto; filter: brightness(0) invert(1) opacity(.92); }
.footer-brand p { margin-top: 1.1rem; color: rgba(216, 210, 196, .66); font-size: .88rem; max-width: 22rem; }
.footer-col h4 {
  font-size: .82rem;
  letter-spacing: .24em;
  color: #f0ead9;
  margin-bottom: 1.1rem;
  font-weight: 500;
}
.footer-col li { margin-bottom: .6rem; }
.footer-col a { color: rgba(216, 210, 196, .74); font-size: .89rem; }
.footer-col a:hover { color: #f0ead9; }
.footer-bottom {
  padding: 1.6rem 0 2.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1.5rem;
  justify-content: space-between;
  font-size: .8rem;
  color: rgba(216, 210, 196, .5);
  letter-spacing: .06em;
}

/* ---------- 页面头部（内页） ---------- */
.page-head {
  padding: clamp(3rem, 7vw, 5.5rem) 0 clamp(2.4rem, 5vw, 4rem);
  border-bottom: 1px solid var(--line);
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  font-size: .78rem;
  letter-spacing: .16em;
  color: var(--ink-3);
  margin-bottom: 1.6rem;
}
.breadcrumb a:hover { color: var(--bamboo); }
.breadcrumb span { opacity: .6; }
.page-head-inner { display: grid; grid-template-columns: 1fr; gap: 2rem; align-items: end; }
.page-title { font-size: clamp(1.9rem, 4.4vw, 3rem); letter-spacing: .1em; }
.page-sub { margin-top: 1rem; color: var(--ink-2); max-width: 34rem; }
.page-head .en-title {
  font-family: var(--f-hand);
  font-size: clamp(1.3rem, 2.6vw, 1.8rem);
  color: var(--bamboo);
  letter-spacing: .12em;
  margin-bottom: .5rem;
}

/* ---------- 入场动效 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--t-slow) var(--e-out-expo), transform var(--t-slow) var(--e-out-expo);
  will-change: opacity, transform;
}
[data-reveal="fade"] { transform: none; }
[data-reveal="left"] { transform: translateX(-18px); }
[data-reveal="right"] { transform: translateX(18px); }
[data-reveal].is-in { opacity: 1; transform: none; }

/* ===========================================================
   断点：≥768px 平板
   =========================================================== */
@media (min-width: 768px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }

  .cards { grid-template-columns: repeat(2, 1fr); }
  .adv { grid-template-columns: repeat(2, 1fr); }
  .kv { grid-template-columns: repeat(2, 1fr); }
  .result-list { grid-template-columns: repeat(3, 1fr); }
  .related { grid-template-columns: repeat(3, 1fr); }
  .case-list { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); border-bottom: 0; }
  .step {
    border-bottom: 1px solid var(--line);
    padding: 2rem 1.6rem 2.2rem 0;
  }
  .steps .step:not(:first-child) { padding-left: 1.6rem; border-left: 1px solid var(--line); }
  .stats { grid-template-columns: repeat(4, 1fr); }

  .news-item {
    grid-template-columns: 190px 1fr;
    gap: 1.6rem;
    align-items: start;
  }
  .news-item .news-meta { flex-direction: column; align-items: flex-start; gap: .5rem; }
  .news-item .news-body { max-width: 40rem; }

  .shop {
    grid-template-columns: 200px 1fr;
    gap: 1.2rem 2rem;
    align-items: start;
  }
  .info-item { grid-template-columns: 150px 1fr; gap: 1rem; align-items: baseline; }

  .split { grid-template-columns: 1fr 1fr; align-items: center; }
  .split--reverse .split-figure { order: 2; }
  .split--top { align-items: start; }
  .mt-md { margin-top: 1.8rem; }

  .form-grid { grid-template-columns: repeat(2, 1fr); }

  .page-head-inner { grid-template-columns: 1fr auto; align-items: end; }

  .footer-top { grid-template-columns: 1.6fr 1fr 1fr 1fr; }
}

/* ===========================================================
   断点：≥1100px 桌面
   =========================================================== */
@media (min-width: 1100px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
  .cards { grid-template-columns: repeat(4, 1fr); }
  .adv { grid-template-columns: repeat(4, 1fr); }
  .kv { grid-template-columns: repeat(4, 1fr); }
  .case-list { grid-template-columns: repeat(3, 1fr); }
}

/* ===========================================================
   断点：<900px 导航折叠 + 竖排优雅降级
   =========================================================== */
@media (max-width: 899px) {
  .nav-toggle { display: block; }

  .nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    transition: max-height .6s var(--e-out-expo), visibility .3s linear .6s;
  }
  .nav.is-open {
    max-height: 460px;
    visibility: visible;
    transition: max-height .6s var(--e-out-expo), visibility 0s;
  }
  .nav a {
    padding: 1.05rem clamp(20px, 5vw, 52px);
    border-top: 1px solid var(--line);
    font-size: 1rem;
  }
  .nav a::after { display: none; }
  .nav a[aria-current="page"] { color: var(--cinnabar); }
}

/* 竖排元素优雅降级：窄屏改为横排，不溢出 */
@media (max-width: 899px) {
  .v-title {
    writing-mode: horizontal-tb;
    text-orientation: mixed;
    height: auto;
    font-size: clamp(2rem, 9vw, 2.8rem);
    letter-spacing: .16em;
    line-height: 1.5;
    display: block;
  }
  .v-title .v-line { display: block; }
  .hero-copy { gap: 1.4rem; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-figure figcaption { text-align: left; }
}

@media (max-width: 600px) {
  .stat { padding: 1.3rem .8rem; }
  .rail-item { width: 74vw; }
  .brand-text span { letter-spacing: .2em; }
  .footer-bottom { flex-direction: column; }
}

/* ---------- 无障碍：减少动态效果 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}

/* ---------- 打印 ---------- */
@media print {
  .site-header, .rail-nav, .nav-toggle { display: none; }
  body { background: #fff; }
}


/* ===== CMS helpers ===== */
.form-alert{padding:12px 16px;border-radius:8px;margin:0 0 16px;font-size:.92rem;line-height:1.6}
.form-alert-ok{background:rgba(46,160,67,.08);border:1px solid rgba(46,160,67,.35);color:#2ea043}
.form-alert-err{background:rgba(220,53,69,.08);border:1px solid rgba(220,53,69,.35);color:#dc3545}
.form-alert ul{margin:0;padding-left:18px}
.cms-pager{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:44px 0 0}
.cms-pager a,.cms-pager span{min-width:38px;padding:8px 13px;border:1px solid rgba(128,128,128,.35);border-radius:6px;text-align:center;text-decoration:none;color:inherit}
.cms-pager .active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.detail-page{max-width:1100px;margin:0 auto;padding:72px 24px}
.detail-media{width:100%;max-height:520px;object-fit:cover;border-radius:14px;margin-bottom:26px;display:block}
.detail-title{font-size:clamp(26px,3vw,38px);line-height:1.3;margin-bottom:12px}
.detail-meta{color:#777;font-size:.95rem;margin-bottom:20px}
.detail-body{line-height:1.9;color:#444}
.detail-body p{margin-bottom:1em}
.detail-body img{max-width:100%;height:auto;border-radius:10px}
.detail-back{display:inline-block;margin-top:28px;padding:11px 26px;border:1px solid rgba(128,128,128,.4);border-radius:999px;text-decoration:none;color:inherit}
/* ===== 深色 banner 标题白字（避免 h1 与背景同色不可读） ===== */
.banner--ink h1,.banner--purple h1,.banner--coral h1{color:#fff}
/* ===== 阅读全文按钮（硬边 neo-brutalist 风格） ===== */
.news-item .more{display:inline-block;margin-top:14px;padding:10px 20px;background:var(--c-ink);color:#fff;border:var(--border-2);box-shadow:var(--shadow-sm);font-family:var(--font-en);font-weight:800;font-size:.85rem;letter-spacing:.02em;text-decoration:none;transition:transform .12s ease,box-shadow .12s ease,background .12s ease}
.news-item .more:hover{background:var(--c-coral);transform:translate(-2px,-2px);box-shadow:var(--shadow)}
/* ===== 留言板一行一个 input（01 翰墨轩） ===== */
.form-grid{grid-template-columns:1fr}