/* =========================================================
   山莲山 · 徐面葉點  品牌站
   设计系统 v1.0
   ---------------------------------------------------------
   概念：一黄一绿 —— 玉米的金黄 × 蔬菜汁的青绿
   色彩：墨绿（主）· 玉米黄（强调）· 宣纸白（底）· 朱砂（点缀）
   字体：宋体标题（非遗气质）× 黑体正文（干净易读）
   ========================================================= */

/* ---------- 1. Tokens ---------- */
:root {
  /* 色 */
  --ink:        #1A1A17;
  --ink-soft:   #3F4340;
  --muted:      #86827A;
  --paper:      #FAF7F0;
  --paper-2:    #F1EBDD;
  --paper-3:    #E7DFCC;

  --green-900:  #12271D;
  --green-800:  #173324;
  --green-700:  #1F4132;
  --green-600:  #2A5540;
  --leaf:       #6E8F3E;
  --leaf-lt:    #9CB566;

  --corn:       #D99A24;
  --corn-lt:    #F0C25C;
  --seal:       #A33E29;

  --line:       rgba(26, 26, 23, .13);
  --line-soft:  rgba(26, 26, 23, .07);
  --line-inv:   rgba(250, 247, 240, .18);

  /* 字 */
  --serif: "Songti SC", "STSong", "Source Han Serif SC", "Noto Serif SC", "SimSun", "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;

  /* 尺度 */
  --wrap: 1240px;
  --gap: clamp(20px, 2.4vw, 32px);
  --sec-y: clamp(64px, 8.5vw, 132px);
  --radius: 2px;

  --ease: cubic-bezier(.22, .68, .16, 1);
  --dur: .55s;
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.9;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }
::selection { background: var(--corn); color: var(--green-900); }
:focus-visible { outline: 2px solid var(--corn); outline-offset: 3px; }

/* ---------- 3. Typography ---------- */
.serif { font-family: var(--serif); }
h1, h2, h3, .h {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.28;
  letter-spacing: .04em;
}
.h-display { font-size: clamp(34px, 5.4vw, 64px); line-height: 1.2; letter-spacing: .06em; }
.h1        { font-size: clamp(30px, 4.2vw, 50px); }
.h2        { font-size: clamp(25px, 3.1vw, 38px); }
.h3        { font-size: clamp(18px, 1.9vw, 23px); letter-spacing: .05em; }

.lead { font-size: clamp(15px, 1.35vw, 17px); line-height: 2.05; color: var(--ink-soft); }
.body { font-size: 15.5px; line-height: 2; color: var(--ink-soft); }
.small { font-size: 13px; line-height: 1.85; color: var(--muted); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 11.5px; letter-spacing: .3em; text-transform: uppercase;
  color: var(--muted); font-weight: 500;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: currentColor; opacity: .55; }
.eyebrow--inv { color: rgba(250, 247, 240, .62); }
.eyebrow--plain::before { display: none; }

.en { font-family: Georgia, "Times New Roman", serif; letter-spacing: .24em; text-transform: uppercase; }

/* 不断行 */
.nw { white-space: nowrap; }
.d-md-none { display: none; }

/* ---------- 4. Layout ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 clamp(20px, 4vw, 40px); }
.wrap--wide { max-width: 1520px; }
.sec { padding: var(--sec-y) 0; }
.sec--tight { padding: calc(var(--sec-y) * .62) 0; }
.sec--paper2 { background: var(--paper-2); }
.sec--green { background: var(--green-900); color: var(--paper); }
.sec--green .lead, .sec--green .body, .sec--green .small { color: rgba(250, 247, 240, .74); }
.sec--green .eyebrow { color: rgba(250, 247, 240, .55); }
.rule { height: 1px; background: var(--line); border: 0; margin: 0; }

.sec-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 28px; padding-bottom: 26px; border-bottom: 1px solid var(--line);
  margin-bottom: clamp(36px, 5vw, 64px);
}
.sec-head__left { display: flex; flex-direction: column; gap: 14px; }
.sec-head__idx { font-family: var(--serif); font-size: 13px; letter-spacing: .24em; color: var(--muted); white-space: nowrap; }
.sec--green .sec-head { border-color: var(--line-inv); }
.sec--green .sec-head__idx { color: rgba(250, 247, 240, .45); }
.sec-head__sub { max-width: 460px; }

/* ---------- 5. Buttons & links ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  padding: 15px 32px; min-height: 50px;
  border: 1px solid currentColor; border-radius: var(--radius);
  font-size: 12.5px; letter-spacing: .24em; font-weight: 500;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.btn svg { width: 14px; height: 14px; transition: transform var(--dur) var(--ease); }
.btn:hover svg { transform: translateX(4px); }
.btn--solid { background: var(--green-900); border-color: var(--green-900); color: var(--paper); }
.btn--solid:hover { background: var(--corn); border-color: var(--corn); color: var(--green-900); }
.btn--corn { background: var(--corn); border-color: var(--corn); color: var(--green-900); }
.btn--corn:hover { background: var(--corn-lt); border-color: var(--corn-lt); }
.btn--inv { border-color: rgba(250, 247, 240, .45); color: var(--paper); }
.btn--inv:hover { background: var(--paper); border-color: var(--paper); color: var(--green-900); }

.link-arrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12.5px; letter-spacing: .2em; color: var(--ink-soft);
  border-bottom: 1px solid transparent; padding-bottom: 3px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.link-arrow::after { content: "→"; transition: transform var(--dur) var(--ease); }
.link-arrow:hover { color: var(--ink); border-color: var(--ink); }
.link-arrow:hover::after { transform: translateX(5px); }
.sec--green .link-arrow { color: rgba(250, 247, 240, .8); }
.sec--green .link-arrow:hover { color: var(--corn-lt); border-color: var(--corn-lt); }

/* ---------- 6. Header ---------- */
.hdr {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  transition: background .4s var(--ease), box-shadow .4s var(--ease), backdrop-filter .4s;
}
.hdr__in {
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
  height: 92px; transition: height .4s var(--ease);
}
.hdr--solid { background: rgba(250, 247, 240, .94); backdrop-filter: saturate(1.4) blur(14px); box-shadow: 0 1px 0 var(--line-soft); }
.hdr--solid .hdr__in { height: 74px; }

.brand { display: flex; align-items: center; gap: 14px; }
.brand__mark {
  width: 54px; height: 54px; flex: none;
  display: grid; place-items: center;
  border: 1px solid currentColor; border-radius: 50%;
  transition: transform var(--dur) var(--ease), border-color var(--dur);
}
.brand__mark .mark { width: 42px; height: auto; display: none; }
.brand__mark .mark--dark { display: block; }
.home .hdr:not(.hdr--solid) .brand__mark .mark--dark,
.page-imghero .hdr:not(.hdr--solid) .brand__mark .mark--dark,
.ftr .brand__mark .mark--dark { display: none; }
.home .hdr:not(.hdr--solid) .brand__mark .mark--light,
.page-imghero .hdr:not(.hdr--solid) .brand__mark .mark--light,
.ftr .brand__mark .mark--light { display: block; }
.brand:hover .brand__mark { transform: rotate(-8deg); }
.brand__txt { display: flex; flex-direction: column; line-height: 1; }
.brand__cn { font-family: var(--serif); font-size: 21px; letter-spacing: .26em; text-indent: .26em; }
.brand__en { font-family: Georgia, serif; font-size: 8.5px; letter-spacing: .3em; text-indent: .3em; opacity: .62; margin-top: 6px; }

.nav { display: flex; align-items: center; gap: clamp(18px, 2.2vw, 36px); }
.nav a {
  position: relative; font-size: 13.5px; letter-spacing: .13em;
  padding: 6px 0; transition: color .35s;
}
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 1px;
  background: currentColor; transition: width .4s var(--ease);
}
.nav a:hover::after, .nav a[aria-current="page"]::after { width: 100%; }
.nav a[aria-current="page"] { color: var(--corn); }

.hdr__tel { display: flex; align-items: center; gap: 9px; font-size: 13px; letter-spacing: .1em; white-space: nowrap; }
.hdr__tel svg { width: 15px; height: 15px; }

/* 透明态（仅首页首屏） */
.home .hdr:not(.hdr--solid) { color: var(--paper); }
.home .hdr:not(.hdr--solid) .nav a[aria-current="page"] { color: var(--corn-lt); }

/* 内页深色首图：页头同样走浅色，滚过首屏后转实色 */
.page-imghero .hdr:not(.hdr--solid) { color: var(--paper); }
.page-imghero .hdr:not(.hdr--solid) .nav a[aria-current="page"] { color: var(--corn-lt); }

.burger { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; }
.burger span { display: block; width: 22px; height: 1px; background: currentColor; position: relative; transition: .35s var(--ease); }
.burger span::before, .burger span::after {
  content: ""; position: absolute; left: 0; width: 22px; height: 1px; background: currentColor; transition: .35s var(--ease);
}
.burger span::before { top: -7px; }
.burger span::after { top: 7px; }

/* 抽屉 */
.drawer {
  position: fixed; inset: 0; z-index: 120;
  background: var(--green-900); color: var(--paper);
  display: flex; flex-direction: column;
  padding: 28px clamp(20px, 6vw, 40px) 40px;
  transform: translateY(-101%); transition: transform .5s var(--ease);
  overflow-y: auto;
}
.drawer.is-open { transform: translateY(0); }
.drawer__top { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.drawer__close { width: 44px; height: 44px; display: grid; place-items: center; font-size: 26px; line-height: 1; }
.drawer nav { display: flex; flex-direction: column; margin-top: 40px; }
.drawer nav a {
  font-family: var(--serif); font-size: 26px; letter-spacing: .16em;
  padding: 20px 0; border-bottom: 1px solid var(--line-inv);
  display: flex; align-items: baseline; justify-content: space-between;
}
.drawer nav a span { font-family: var(--sans); font-size: 11px; letter-spacing: .2em; opacity: .45; }
.drawer__foot { margin-top: auto; padding-top: 36px; display: flex; flex-direction: column; gap: 8px; font-size: 13.5px; color: rgba(250, 247, 240, .7); }

/* ---------- 7. Hero ---------- */
.hero { position: relative; min-height: min(860px, 96vh); display: flex; align-items: flex-end; overflow: hidden; }
.hero__bg { position: absolute; inset: 0; }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 52%; }
.hero__bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(100deg, rgba(10, 26, 18, .93) 0%, rgba(10, 26, 18, .78) 34%, rgba(10, 26, 18, .30) 62%, rgba(10, 26, 18, .18) 100%),
    linear-gradient(to top, rgba(10, 26, 18, .55), transparent 46%);
}
.hero__grain {
  position: absolute; inset: 0; pointer-events: none; opacity: .5; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.22'/%3E%3C/svg%3E");
}
.hero__in { position: relative; width: 100%; padding-bottom: clamp(56px, 9vh, 104px); padding-top: 140px; color: var(--paper); }
.hero__kicker { display: inline-flex; align-items: center; gap: 14px; font-size: 12px; letter-spacing: .28em; color: rgba(250, 247, 240, .78); margin-bottom: 30px; }
.hero__kicker i { display: block; width: 34px; height: 1px; background: var(--corn); }
.hero h1 {
  font-size: clamp(38px, 6.2vw, 78px); line-height: 1.18; letter-spacing: .07em;
  max-width: 15em; text-shadow: 0 2px 40px rgba(0, 0, 0, .3);
}
.hero h1 em { font-style: normal; color: var(--corn-lt); }
.hero__sub { margin-top: 30px; max-width: 34em; font-size: clamp(14.5px, 1.4vw, 17px); line-height: 2.1; color: rgba(250, 247, 240, .82); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 44px; }
.hero__scroll {
  position: absolute; right: clamp(20px, 4vw, 40px); bottom: 40px;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  font-size: 10px; letter-spacing: .3em; color: rgba(250, 247, 240, .55);
  writing-mode: vertical-rl;
}
.hero__scroll i { display: block; width: 1px; height: 56px; background: linear-gradient(to bottom, rgba(250, 247, 240, .8), transparent); animation: scrollLine 2.4s var(--ease) infinite; }
@keyframes scrollLine { 0%, 100% { transform: scaleY(.35); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } }

/* ---------- 8. Stat strip ---------- */
.stats { background: var(--green-800); color: var(--paper); }
.stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stats__item { padding: 40px clamp(14px, 2vw, 28px); border-left: 1px solid var(--line-inv); }
.stats__item:first-child { border-left: 0; padding-left: 0; }
.stats__num { font-family: var(--serif); font-size: clamp(28px, 3.4vw, 42px); line-height: 1; color: var(--corn-lt); letter-spacing: .02em; }
.stats__num small { font-size: .45em; letter-spacing: .14em; margin-left: 6px; color: rgba(250, 247, 240, .7); }
.stats__label { margin-top: 12px; font-size: 12.5px; letter-spacing: .16em; color: rgba(250, 247, 240, .68); }

/* ---------- 9. Intro split ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 96px); align-items: center; }
.split--rev .split__media { order: 2; }
.split__media { position: relative; }
.split__media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 5; }
.split__media--wide img { aspect-ratio: 3 / 2; }
.split__badge {
  position: absolute; right: -18px; bottom: -18px;
  width: 132px; height: 132px; border-radius: 50%;
  background: var(--corn); color: var(--green-900);
  display: grid; place-content: center; text-align: center;
  font-family: var(--serif); font-size: 13px; line-height: 1.7; letter-spacing: .1em;
  box-shadow: 0 12px 40px rgba(0, 0, 0, .12);
}
.split__badge strong { display: block; font-size: 26px; letter-spacing: .04em; }
.split__body > * + * { margin-top: 22px; }
.split__body h2 { margin-top: 4px; }
.split__qa { display: grid; gap: 18px; margin-top: 30px; }
.split__qa div { display: grid; grid-template-columns: 78px 1fr; gap: 16px; padding-top: 18px; border-top: 1px solid var(--line); }
.split__qa dt { font-size: 12px; letter-spacing: .18em; color: var(--muted); padding-top: 4px; }
.split__qa dd { margin: 0; font-size: 14.5px; line-height: 1.95; color: var(--ink-soft); }

/* ---------- 10. Pillars ---------- */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.pillar { position: relative; display: block; overflow: hidden; background: var(--green-800); }
.pillar__media { position: relative; aspect-ratio: 3 / 4; overflow: hidden; }
.pillar__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.1s var(--ease); }
.pillar__media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(7, 22, 15, .96) 0%, rgba(7, 22, 15, .76) 32%, rgba(7, 22, 15, .18) 70%, rgba(7, 22, 15, .04) 100%);
}
.pillar:hover .pillar__media img { transform: scale(1.05); }
.pillar__body { position: absolute; inset: auto 0 0 0; padding: 30px; color: var(--paper); }
.pillar__no { font-family: var(--serif); font-size: 12px; letter-spacing: .3em; color: var(--corn-lt); }
.pillar__body h3 { margin-top: 12px; font-size: clamp(20px, 2vw, 25px); letter-spacing: .1em; }
.pillar__body p { margin-top: 10px; font-size: 13.5px; line-height: 1.85; color: rgba(250, 247, 240, .76); }
.pillar__more { margin-top: 18px; display: inline-flex; align-items: center; gap: 8px; font-size: 11.5px; letter-spacing: .22em; color: var(--corn-lt); }
.pillar__more::after { content: "→"; transition: transform var(--dur) var(--ease); }
.pillar:hover .pillar__more::after { transform: translateX(6px); }

/* 浅色版卡片（图文上下分栏，无遮罩） */
.pillar--plain { background: var(--paper); }
.pillar--plain .pillar__media::after { content: none; }
.pillar--plain:hover .pillar__media img { transform: scale(1.04); }

/* ---------- 11. Concept 一黄一绿 ---------- */
.concept { display: grid; grid-template-columns: 1fr auto 1fr; align-items: stretch; }
.concept__col { position: relative; min-height: clamp(430px, 46vw, 580px); overflow: hidden; }
.concept__col img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: saturate(1.08) contrast(1.03); }
.concept__col::after { content: ""; position: absolute; inset: 0; }
.concept__col--yellow::after { background: linear-gradient(to top, rgba(56, 34, 3, .9) 0%, rgba(56, 34, 3, .42) 32%, rgba(56, 34, 3, 0) 64%); }
.concept__col--green::after { background: linear-gradient(to top, rgba(7, 24, 13, .92) 0%, rgba(7, 24, 13, .42) 32%, rgba(7, 24, 13, 0) 64%); }
.concept__cap { position: absolute; inset: auto 0 0 0; padding: clamp(24px, 3vw, 44px); color: var(--paper); z-index: 2; }
.concept__cap h3 { font-size: clamp(20px, 2.2vw, 27px); letter-spacing: .12em; }
.concept__cap p { margin-top: 10px; font-size: 13.5px; line-height: 1.9; color: rgba(250, 247, 240, .82); max-width: 26em; }
.concept__cap .tag { display: inline-block; margin-bottom: 14px; font-size: 10.5px; letter-spacing: .3em; padding: 5px 12px; border: 1px solid rgba(250, 247, 240, .45); }
.concept__mid {
  width: clamp(150px, 16vw, 230px); display: grid; place-content: center; text-align: center;
  background: var(--green-900); color: var(--paper); padding: 30px 16px; position: relative; z-index: 3;
}
.concept__mid .cn { font-family: var(--serif); font-size: clamp(22px, 2.4vw, 30px); letter-spacing: .34em; text-indent: .34em; line-height: 1.7; }
.concept__mid .en { font-size: 9.5px; opacity: .5; margin-top: 14px; letter-spacing: .3em; }
.concept__mid .dot { width: 5px; height: 5px; border-radius: 50%; background: var(--corn); margin: 20px auto 0; }

/* ---------- 12. Products ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 42px; }
.filters button {
  padding: 10px 20px; border: 1px solid var(--line); border-radius: 999px;
  font-size: 12.5px; letter-spacing: .12em; color: var(--ink-soft);
  transition: .35s var(--ease);
}
.filters button:hover { border-color: var(--ink); color: var(--ink); }
.filters button.is-active { background: var(--green-900); border-color: var(--green-900); color: var(--paper); }

.pgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap) clamp(16px, 2vw, 28px); }
.pcard { display: block; }
.pcard__ph { position: relative; aspect-ratio: 4 / 5; overflow: hidden; background: var(--paper-2); }
.pcard__ph img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease); }
.pcard:hover .pcard__ph img { transform: scale(1.05); }
.pcard__cat {
  position: absolute; left: 0; top: 0; z-index: 2;
  padding: 6px 12px; font-size: 10.5px; letter-spacing: .2em;
  background: rgba(250, 247, 240, .94); color: var(--ink-soft);
  opacity: 0; transform: translateY(-6px); transition: .4s var(--ease);
}
.pcard:hover .pcard__cat { opacity: 1; transform: translateY(0); }
.pcard__meta { padding: 18px 2px 0; }
.pcard__brand {
  display: inline-block; margin-bottom: 8px;
  padding: 2px 8px; border: 1px solid rgba(217, 154, 36, .38);
  font-size: 10px; line-height: 1.8; letter-spacing: .22em; text-indent: .22em;
  color: #9A6A12; background: rgba(217, 154, 36, .05);
}
.pcard__meta h3 { font-size: 17.5px; letter-spacing: .08em; }
.pcard__meta p { margin-top: 6px; font-size: 12.5px; color: var(--muted); letter-spacing: .04em; }
.pcard__line { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--line-soft); }
.pcard__line span { font-size: 11px; letter-spacing: .16em; color: var(--muted); }
.pcard__line b { font-family: var(--serif); font-weight: 400; font-size: 12.5px; letter-spacing: .1em; color: var(--seal); }

/* 无实拍图时的「字样卡」——刻意设计，而非破图 */
.pcard__ph--text {
  display: grid; place-content: center; gap: 12px; text-align: center;
  border: 1px solid var(--line-soft);
  background:
    radial-gradient(circle at 76% 20%, rgba(217, 154, 36, .18), transparent 52%),
    radial-gradient(circle at 18% 88%, rgba(110, 143, 62, .14), transparent 56%),
    var(--paper-2);
}
.pcard__word {
  font-family: var(--serif); font-size: clamp(21px, 2.1vw, 27px);
  letter-spacing: .22em; text-indent: .22em; line-height: 1.55; color: var(--green-800);
}
.pcard__en { font-family: Georgia, serif; font-size: 8.5px; letter-spacing: .26em; color: var(--muted); }

/* ---------- 13. Timeline ---------- */
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line-inv); }
.timeline__item { padding: 42px 28px 0 0; position: relative; }
.timeline__item::before {
  content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px;
  border-radius: 50%; background: var(--corn);
}
.timeline__year { font-family: var(--serif); font-size: clamp(24px, 2.6vw, 32px); color: var(--corn-lt); letter-spacing: .04em; }
.timeline__item h3 { margin-top: 14px; font-size: 17px; letter-spacing: .08em; color: var(--paper); }
.timeline__item p { margin-top: 10px; font-size: 13px; line-height: 1.9; color: rgba(250, 247, 240, .66); }

/* ---------- 14. Quality numbers ---------- */
.qgrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.qgrid__cell { background: var(--paper); padding: clamp(26px, 3vw, 40px); }
.qgrid__cell h3 { display: flex; align-items: baseline; gap: 12px; font-size: 18px; letter-spacing: .08em; }
.qgrid__cell h3 i { font-family: var(--serif); font-style: normal; font-size: 12px; letter-spacing: .2em; color: var(--corn); }
.qgrid__cell p { margin-top: 12px; font-size: 14px; line-height: 1.95; color: var(--ink-soft); }

/* ---------- 15. CTA band ---------- */
.cta-band { position: relative; overflow: hidden; background: var(--green-900); color: var(--paper); }
.cta-band__bg { position: absolute; inset: 0; opacity: .22; }
.cta-band__bg img { width: 100%; height: 100%; object-fit: cover; }
.cta-band::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(102deg, rgba(9, 22, 16, .92) 0%, rgba(9, 22, 16, .8) 52%, rgba(9, 22, 16, .66) 100%);
}
.cta-band__in { position: relative; z-index: 2; display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(32px, 6vw, 80px); align-items: center; padding: clamp(56px, 7vw, 96px) 0; }
.cta-band h2 { font-size: clamp(26px, 3.4vw, 42px); letter-spacing: .08em; }
.cta-band p { margin-top: 20px; color: rgba(250, 247, 240, .76); font-size: 14.5px; line-height: 2; max-width: 34em; }
.cta-band__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.steps { display: grid; gap: 0; border-top: 1px solid var(--line-inv); }
.steps li { display: grid; grid-template-columns: 46px 1fr; gap: 18px; padding: 22px 0; border-bottom: 1px solid var(--line-inv); align-items: baseline; }
.steps b { font-family: var(--serif); font-weight: 400; font-size: 15px; color: var(--corn-lt); letter-spacing: .12em; }
.steps strong { display: block; font-family: var(--serif); font-weight: 400; font-size: 16.5px; letter-spacing: .1em; color: var(--paper); }
.steps span { display: block; margin-top: 4px; font-size: 12.5px; color: rgba(250, 247, 240, .74); line-height: 1.8; }

/* ---------- 16. News ---------- */
.news { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.ncard { display: flex; flex-direction: column; border-top: 1px solid var(--line); padding-top: 24px; transition: border-color .4s; }
.ncard:hover { border-color: var(--ink); }
.ncard__date { font-family: Georgia, serif; font-size: 11.5px; letter-spacing: .18em; color: var(--muted); }
.ncard h3 { margin-top: 14px; font-size: 17.5px; letter-spacing: .06em; line-height: 1.6; }
.ncard p { margin-top: 10px; font-size: 13.5px; line-height: 1.9; color: var(--ink-soft); }
.ncard .link-arrow { margin-top: auto; padding-top: 22px; align-self: flex-start; }

/* ---------- 17. Footer ---------- */
.ftr { background: var(--green-900); color: var(--paper); padding: clamp(56px, 7vw, 96px) 0 0; }
.ftr__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.1fr; gap: clamp(24px, 4vw, 56px); padding-bottom: 56px; }
.ftr__brand .brand__cn { font-size: 24px; }
.ftr__desc { margin-top: 24px; font-size: 13px; line-height: 2; color: rgba(250, 247, 240, .6); max-width: 24em; }
.ftr__logos { display: flex; align-items: center; gap: 20px; margin-top: 26px; padding-top: 20px; border-top: 1px solid var(--line-inv); }
.ftr__logos img { height: 52px; width: auto; opacity: .92; }
.ftr h4 { font-family: var(--sans); font-size: 11.5px; letter-spacing: .26em; color: rgba(250, 247, 240, .45); font-weight: 500; margin-bottom: 20px; }
.ftr__links { display: grid; gap: 12px; }
.ftr__links a { font-size: 13.5px; color: rgba(250, 247, 240, .8); letter-spacing: .06em; transition: color .3s; }
.ftr__links a:hover { color: var(--corn-lt); }
.ftr__contact { display: grid; gap: 16px; font-size: 13.5px; }
.ftr__contact div { display: grid; grid-template-columns: 16px 1fr; gap: 12px; align-items: start; color: rgba(250, 247, 240, .8); line-height: 1.8; }
.ftr__contact svg { width: 15px; height: 15px; margin-top: 5px; opacity: .6; }
.ftr__contact em { font-style: normal; display: block; font-size: 11px; letter-spacing: .2em; color: rgba(250, 247, 240, .42); margin-bottom: 3px; }
.ftr__qr { display: flex; gap: 14px; }
.ftr__qr figure { margin: 0; text-align: center; }
.ftr__qr img { width: 96px; height: 96px; background: #fff; padding: 5px; }
.ftr__qr figcaption { margin-top: 8px; font-size: 11px; letter-spacing: .1em; color: rgba(250, 247, 240, .55); }
.ftr__bot {
  border-top: 1px solid var(--line-inv); padding: 24px 0 30px;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px;
  font-size: 12px; color: rgba(250, 247, 240, .45);
}
.ftr__bot a:hover { color: rgba(250, 247, 240, .8); }

/* ---------- 18. Inner page hero ---------- */
.phero { position: relative; padding: calc(74px + clamp(56px, 9vw, 110px)) 0 clamp(36px, 4vw, 58px); overflow: hidden; }
.phero + .sec, .phero + .sec--tight { padding-top: clamp(36px, 4.4vw, 66px); }
.phero--img { color: var(--paper); }
.phero--img .phero__bg { position: absolute; inset: 0; }
.phero--img .phero__bg img { width: 100%; height: 100%; object-fit: cover; }
.phero--img .phero__bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(94deg, rgba(9, 24, 16, .94) 0%, rgba(9, 24, 16, .8) 46%, rgba(9, 24, 16, .62) 100%),
    linear-gradient(to top, rgba(9, 24, 16, .5), transparent 70%);
}
.phero__in { position: relative; display: grid; grid-template-columns: 1.25fr .75fr; gap: clamp(28px, 5vw, 72px); align-items: end; }
.phero h1 { font-size: clamp(30px, 4.4vw, 54px); letter-spacing: .08em; }
.phero .lead { margin-top: 24px; max-width: 34em; }
.phero--img .lead { color: rgba(250, 247, 240, .82); }
.phero__aside { border-left: 1px solid currentColor; padding-left: 26px; opacity: .78; }
.phero__aside .en { font-size: 10px; display: block; margin-bottom: 12px; }
.phero__aside p { font-size: 13px; line-height: 2; }

.breadcrumb { display: flex; align-items: center; gap: 10px; font-size: 11.5px; letter-spacing: .16em; color: var(--muted); margin-bottom: 30px; }
.breadcrumb a:hover { color: var(--ink); }
.phero--img .breadcrumb { color: rgba(250, 247, 240, .6); }
.phero--img .breadcrumb a:hover { color: var(--paper); }

/* ---------- 19. Prose / article ---------- */
.prose { max-width: 760px; }
.prose > * + * { margin-top: 24px; }
.prose h2 { font-size: clamp(22px, 2.4vw, 29px); margin-top: 54px; letter-spacing: .06em; }
.prose h3 { font-size: 19px; margin-top: 40px; letter-spacing: .06em; }
.prose p { font-size: 15.5px; line-height: 2.1; color: var(--ink-soft); }
.prose ul { display: grid; gap: 12px; }
.prose li { position: relative; padding-left: 22px; font-size: 15px; line-height: 2; color: var(--ink-soft); }
.prose li::before { content: ""; position: absolute; left: 0; top: 15px; width: 6px; height: 1px; background: var(--corn); }
.prose blockquote {
  margin: 0; padding: 28px 32px; border-left: 2px solid var(--corn);
  background: var(--paper-2); font-family: var(--serif); font-size: 18px; line-height: 1.95; color: var(--ink);
}
.prose figure { margin: 0; }
.prose figure img { width: 100%; }
.prose figcaption { margin-top: 12px; font-size: 12px; color: var(--muted); letter-spacing: .08em; }

.art-layout { display: grid; grid-template-columns: 1fr 300px; gap: clamp(32px, 5vw, 72px); align-items: start; }
.art-aside { position: sticky; top: 100px; border-top: 1px solid var(--line); padding-top: 22px; }
.art-aside h4 { font-size: 11.5px; letter-spacing: .24em; color: var(--muted); font-weight: 500; margin-bottom: 18px; }
.art-aside a { display: block; padding: 14px 0; border-bottom: 1px solid var(--line-soft); font-size: 13.5px; line-height: 1.7; color: var(--ink-soft); transition: color .3s; }
.art-aside a:hover { color: var(--ink); }

/* ---------- 20. Info list / contact ---------- */
.infogrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.infogrid > div { background: var(--paper); padding: 28px 24px; }
.infogrid h4 { font-family: var(--sans); font-size: 11px; letter-spacing: .24em; color: var(--muted); font-weight: 500; }
.infogrid p { margin-top: 12px; font-family: var(--serif); font-size: 18px; letter-spacing: .05em; line-height: 1.7; }
.infogrid a:hover { color: var(--corn); }

.form { display: grid; gap: 20px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { display: grid; gap: 8px; }
.field label { font-size: 11.5px; letter-spacing: .2em; color: var(--muted); }
.field input, .field textarea {
  width: 100%; padding: 14px 16px; background: transparent;
  border: 1px solid var(--line); border-radius: var(--radius);
  font-family: var(--sans); font-size: 14.5px; color: var(--ink);
  transition: border-color .3s;
}
.field textarea { min-height: 132px; resize: vertical; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--green-700); }
.field input::placeholder, .field textarea::placeholder { color: rgba(134, 130, 122, .7); }
.form__note { font-size: 12px; color: var(--muted); }

.map-frame { position: relative; border: 1px solid var(--line); background: var(--paper-2); }
.map-frame img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(.35) contrast(.95); }
.map-frame__pin {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -100%);
  display: grid; gap: 10px; justify-items: center; text-align: center;
}
.map-frame__pin i { display: block; width: 14px; height: 14px; border-radius: 50%; background: var(--seal); box-shadow: 0 0 0 8px rgba(163, 62, 41, .18); }
.map-frame__pin span { font-size: 12px; letter-spacing: .1em; background: var(--paper); padding: 6px 14px; white-space: nowrap; border: 1px solid var(--line); }

/* ---------- 21. Reveal ---------- */
[data-reveal] { opacity: 0; transform: translateY(26px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
[data-reveal].is-in { opacity: 1; transform: none; }
[data-reveal][data-delay="1"] { transition-delay: .1s; }
[data-reveal][data-delay="2"] { transition-delay: .2s; }
[data-reveal][data-delay="3"] { transition-delay: .3s; }
[data-reveal][data-delay="4"] { transition-delay: .4s; }
@media (prefers-reduced-motion: reduce) { [data-reveal] { opacity: 1; transform: none; } }

/* ---------- 22. Responsive ---------- */
@media (max-width: 1080px) {
  .pgrid { grid-template-columns: repeat(3, 1fr); }
  .ftr__top { grid-template-columns: 1fr 1fr; row-gap: 44px; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .stats__item:nth-child(3) { border-left: 0; padding-left: 0; }
  .stats__item:nth-child(n+3) { border-top: 1px solid var(--line-inv); }
  .infogrid { grid-template-columns: repeat(2, 1fr); }
  .art-layout { grid-template-columns: 1fr; }
  .art-aside { position: static; }
}

@media (max-width: 900px) {
  .d-md-none { display: block; }
  .nav, .hdr__tel { display: none; }
  .burger { display: flex; }
  .hero { min-height: 88vh; }
  .hero__scroll { display: none; }
  .split, .split--rev { grid-template-columns: 1fr; gap: 34px; }
  .split--rev .split__media { order: 0; }
  .split__media img { aspect-ratio: 3 / 2; }
  .split__badge { width: 108px; height: 108px; right: 14px; bottom: -16px; font-size: 11.5px; }
  .split__badge strong { font-size: 21px; }
  .pillars { grid-template-columns: 1fr; }
  .pillar__media { aspect-ratio: 16 / 9; }
  .pillar__media::after { content: none; }
  .pillar__body { position: static; padding: 24px 24px 28px; background: var(--green-800); }
  .concept { grid-template-columns: 1fr; }
  .concept__mid { width: 100%; padding: 30px 16px; }
  .concept__mid .cn { font-size: 20px; letter-spacing: .42em; line-height: 1.5; }
  .concept__mid .cn br { display: none; }
  .concept__mid .en { margin-top: 12px; font-size: 9px; }
  .concept__mid .dot { margin-top: 14px; }
  .concept__col { min-height: 340px; }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .qgrid { grid-template-columns: 1fr; }
  .cta-band__in { grid-template-columns: 1fr; }
  .news { grid-template-columns: 1fr; }
  .phero__in { grid-template-columns: 1fr; }
  .phero__aside { border-left: 0; border-top: 1px solid currentColor; padding-left: 0; padding-top: 20px; opacity: .7; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 14px; }
}

@media (max-width: 640px) {
  body { font-size: 15px; line-height: 1.85; }
  .pgrid { grid-template-columns: repeat(2, 1fr); gap: 26px 14px; }
  .pcard__meta h3 { font-size: 15.5px; }
  .pcard__meta p { font-size: 11.5px; }
  .pcard__line span { display: none; }
  .form__row { grid-template-columns: 1fr; }
  .ftr__top { grid-template-columns: 1fr; }
  .ftr__bot { flex-direction: column; align-items: flex-start; gap: 10px; }
  .ftr__bot span { max-width: 100%; line-height: 1.75; }
  .stats__grid { grid-template-columns: 1fr 1fr; }
  .stats__item { padding: 26px 16px; }
  .stats__item:nth-child(odd) { border-left: 0; padding-left: 0; }
  .infogrid { grid-template-columns: 1fr; }
  .hero { min-height: 84vh; }
  .hero h1 { font-size: clamp(30px, 8.6vw, 42px); }
  .hero__bg img { object-position: 56% 50%; }
  .hero__cta .btn { flex: 1 1 46%; padding: 14px 18px; font-size: 11.5px; letter-spacing: .16em; }
  .timeline {
    grid-template-columns: 1fr; border-top: 0;
    border-left: 1px solid var(--line-inv);
    padding-left: 26px; margin-left: 5px;
  }
  .timeline__item { padding: 0 0 34px 0; }
  .timeline__item:last-child { padding-bottom: 0; }
  .timeline__item::before { left: -31px; top: 11px; }
  .timeline__year { font-size: 24px; }
  .pcard__line b { margin-left: auto; }
  .ftr__logos img { height: 52px; }
  .ftr__qr img { width: 84px; height: 84px; }
}

/* ---------- 23. 地址导航卡 ---------- */
.addr-card { border: 1px solid var(--line); background: var(--paper-2); }
.addr-card__map {
  position: relative; height: clamp(180px, 22vw, 240px); overflow: hidden;
  background:
    repeating-linear-gradient(0deg, rgba(26, 26, 23, .055) 0 1px, transparent 1px 36px),
    repeating-linear-gradient(90deg, rgba(26, 26, 23, .055) 0 1px, transparent 1px 36px),
    radial-gradient(circle at 50% 48%, rgba(217, 154, 36, .22), transparent 60%),
    var(--paper-3);
}
.addr-card__map::before {
  content: ""; position: absolute; left: 8%; top: 34%; width: 84%; height: 1px;
  background: rgba(26, 26, 23, .16); transform: rotate(-6deg);
}
.addr-card__map::after {
  content: ""; position: absolute; left: 0; top: 62%; width: 100%; height: 6px;
  background: rgba(250, 247, 240, .9); box-shadow: 0 -1px 0 rgba(26, 26, 23, .1), 0 1px 0 rgba(26, 26, 23, .1);
  transform: rotate(3deg);
}
.addr-card__pin {
  position: absolute; left: 50%; top: 48%; transform: translate(-50%, -50%);
  display: grid; justify-items: center; gap: 10px; z-index: 2;
}
.addr-card__pin i {
  display: block; width: 13px; height: 13px; border-radius: 50%;
  background: var(--seal); box-shadow: 0 0 0 9px rgba(163, 62, 41, .16), 0 0 0 18px rgba(163, 62, 41, .07);
}
.addr-card__pin span {
  font-size: 11.5px; letter-spacing: .1em; background: var(--paper);
  padding: 6px 12px; border: 1px solid var(--line); white-space: nowrap;
}
.addr-card__body { padding: clamp(20px, 2.4vw, 28px); }
.addr-card__addr { font-family: var(--serif); font-size: 17px; letter-spacing: .04em; margin-top: 12px; }
.addr-card__btns { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.addr-card__btns .btn { padding: 11px 20px; min-height: 42px; font-size: 11.5px; letter-spacing: .16em; }
.infogrid > div { display: flex; flex-direction: column; }
.infogrid img { margin-top: auto; }

@media (max-width: 640px) {
  .addr-card__btns .btn { flex: 1 1 40%; }
}