/* ============================================================
   象与形设计 XIANG YU XING DESIGN — 官网样式
   宋代美学的当代转译：月白 / 墨黑 / 印章红 / 深棕黑
   ============================================================ */

:root {
  --yuebai: #f5f0e8;
  --bg-light: #f7f2ea;
  --bg-case: #efe9df;
  --ink: #1a1a1a;
  --dark: #14100c;
  --black: #0b0b0b;
  --seal: #a5342a;
  --brown: #4a4238;
  --taupe: #8a7d6b;
  --pink: #f0c8c0;
  --serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --sans: "Noto Sans SC", "Helvetica Neue", "PingFang SC", sans-serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-weight: 300;
  color: var(--ink);
  background: var(--bg-light);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; }

::selection { background: var(--seal); color: var(--yuebai); }

.wrap {
  max-width: 1400px;
  margin: 0 auto;
  padding-left: clamp(24px, 4.5vw, 72px);
  padding-right: clamp(24px, 4.5vw, 72px);
}

/* ---------- 通用小组件 ---------- */

.eyebrow {
  font-size: 12px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--taupe);
  font-weight: 400;
}

.btn {
  display: inline-block;
  padding: 15px 42px;
  color: inherit;
  border: 1px solid currentColor;
  background: transparent;
  font-size: 13px;
  letter-spacing: 0.22em;
  font-weight: 400;
  cursor: pointer;
  transition: background 0.28s var(--ease-out), color 0.28s var(--ease-out), border-color 0.28s;
  text-align: center;
}
.btn:hover { background: var(--yuebai); color: var(--seal); border-color: var(--yuebai); }
.btn--ink:hover { background: var(--ink); color: var(--yuebai); border-color: var(--ink); }

.link-arrow {
  font-size: 13px;
  letter-spacing: 0.18em;
  border-bottom: 1px solid currentColor;
  padding-bottom: 4px;
  transition: color 0.25s;
}
.link-arrow:hover { color: var(--seal); }

/* Section 头：左大标题 + 右英文标注 + 发丝线 */
.sec-head { padding-top: clamp(88px, 10vw, 150px); }
.sec-head__row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--ink);
}
.sec-head__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(34px, 4.6vw, 62px);
  letter-spacing: 0.06em;
  line-height: 1.15;
}
.sec-head__en { padding-bottom: 8px; }
.on-dark .sec-head__row { border-bottom-color: rgba(245, 240, 232, 0.3); }
.on-dark .sec-head__title { color: var(--yuebai); }

/* 滚动入场 */
.reveal {
  opacity: 0;
  transform: translateY(48px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-in { opacity: 1; transform: translateY(0); }
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }
.reveal[data-delay="4"] { transition-delay: 0.32s; }
.reveal[data-delay="5"] { transition-delay: 0.4s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Preloader ---------- */
.preloader {
  position: fixed; inset: 0; z-index: 200;
  background: var(--black);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 18px;
  transition: opacity 0.8s var(--ease-out), visibility 0.8s;
}
.preloader.is-done { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader__zh {
  font-family: var(--serif); font-size: clamp(34px, 5vw, 52px);
  letter-spacing: 0.3em; color: var(--yuebai); text-indent: 0.3em;
  animation: pre-rise 1.4s var(--ease-out) both;
}
.preloader__en {
  font-size: 11px; letter-spacing: 0.42em; color: var(--taupe); text-indent: 0.42em;
  animation: pre-rise 1.4s 0.15s var(--ease-out) both;
}
@keyframes pre-rise {
  from { opacity: 0; transform: translateY(26px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 固定导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 88px;
  display: flex; align-items: center;
  transition: height 0.45s var(--ease-out), background 0.45s, box-shadow 0.45s;
  color: var(--yuebai);
}
.nav::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: rgba(245, 240, 232, 0);
  transition: background 0.45s;
}
.nav.is-solid {
  height: 64px;
  background: rgba(250, 247, 242, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: var(--ink);
}
.nav.is-solid::after { background: rgba(26, 26, 26, 0.14); }
.nav__inner {
  width: 100%; max-width: 1560px; margin: 0 auto;
  padding: 0 clamp(20px, 3.5vw, 56px);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.nav__logo { display: flex; align-items: baseline; gap: 10px; }
.nav__logo-zh {
  font-family: var(--serif); font-weight: 600; font-size: 20px; letter-spacing: 0.22em;
}
.nav__logo-en { font-size: 10px; letter-spacing: 0.3em; color: var(--taupe); }
.nav__links {
  display: flex; align-items: center; gap: clamp(18px, 2.4vw, 38px);
  font-size: 13px; letter-spacing: 0.16em; font-weight: 400;
}
.nav__links a { position: relative; padding: 6px 0; transition: color 0.25s; }
.nav__links a:not(.nav__cta)::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: currentColor; transition: width 0.3s var(--ease-out);
}
.nav__links a:not(.nav__cta):hover::after { width: 100%; }
.nav__cta {
  border: 1px solid currentColor; padding: 9px 22px !important;
  margin-left: 10px; color: var(--pink);
  transition: background 0.28s, color 0.28s, border-color 0.28s;
}
.nav.is-solid .nav__cta { color: var(--seal); }
.nav__cta:hover { background: var(--seal); border-color: var(--seal); color: #fff !important; }
.nav__burger {
  display: none; width: 40px; height: 40px;
  background: none; border: none; cursor: pointer;
  flex-direction: column; align-items: center; justify-content: center; gap: 7px;
}
.nav__burger span {
  display: block; width: 24px; height: 1.5px; background: currentColor;
  transition: transform 0.35s var(--ease-out), opacity 0.3s;
}
.nav__burger.is-open span:nth-child(1) { transform: translateY(8.5px) rotate(45deg); }
.nav__burger.is-open span:nth-child(2) { opacity: 0; }
.nav__burger.is-open span:nth-child(3) { transform: translateY(-8.5px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  background: var(--dark); color: var(--yuebai);
  overflow: hidden;
}
.hero__slides { position: absolute; inset: 0; }
.hero__slide {
  position: absolute; inset: 0;
  opacity: 0; transition: opacity 1.8s ease;
}
.hero__slide.is-active { opacity: 1; }
.hero__slide img {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.06);
  animation: hero-drift 9s ease-out forwards;
}
@keyframes hero-drift { from { transform: scale(1.12); } to { transform: scale(1.04); } }
.hero__veil {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(12,9,6,0.62), rgba(12,9,6,0.32) 38%, rgba(12,9,6,0.72));
}
.hero__body {
  position: relative; z-index: 2;
  width: 100%;
  flex: 1; display: flex; flex-direction: column; justify-content: center;
  padding-top: 120px; padding-bottom: 48px;
}
.hero__eyebrow {
  font-size: 12px; letter-spacing: 0.32em; color: rgba(245,240,232,0.72);
  margin-bottom: 30px; font-weight: 400;
}
.hero__title {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(46px, 7.5vw, 112px);
  line-height: 1.18; letter-spacing: 0.08em;
  text-shadow: 0 4px 40px rgba(12, 9, 6, 0.45);
}
.hero__title .dot { color: var(--seal); }
.hero__sub {
  margin-top: 26px; max-width: 600px;
  font-size: clamp(15px, 1.35vw, 18px); line-height: 1.9;
  color: rgba(245, 240, 232, 0.86);
}
.hero__sub strong { font-weight: 400; color: var(--yuebai); border-bottom: 1px solid rgba(240,200,192,0.55); }
.hero__ctas { margin-top: 44px; display: flex; align-items: center; gap: 34px; flex-wrap: wrap; }
.hero__dots { position: relative; z-index: 2; display: flex; gap: 10px; margin-bottom: 26px; }
.hero__dot {
  width: 26px; height: 2px; border: none; cursor: pointer;
  background: rgba(245, 240, 232, 0.3); transition: background 0.3s;
}
.hero__dot.is-active { background: var(--yuebai); }
.hero__stats {
  position: relative; z-index: 2;
  border-top: 1px solid rgba(245, 240, 232, 0.22);
  background: rgba(20, 16, 12, 0.42);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: grid; grid-template-columns: repeat(4, 1fr);
}
.hero__stat {
  padding: 26px clamp(16px, 2.5vw, 44px);
  border-left: 1px solid rgba(245, 240, 232, 0.22);
}
.hero__stat:first-child { border-left: none; }
.hero__stat-num {
  font-family: "Helvetica Neue", var(--sans); font-weight: 300;
  font-size: clamp(26px, 3vw, 42px); line-height: 1.1;
  font-variant-numeric: tabular-nums; color: var(--yuebai);
}
.hero__stat-num em { font-style: normal; font-size: 0.45em; margin-left: 4px; color: var(--pink); }
.hero__stat-label { margin-top: 8px; font-size: 12px; letter-spacing: 0.18em; color: rgba(245,240,232,0.66); }

/* ---------- 品牌哲学 ---------- */
.philo { background: var(--bg-light); padding-bottom: clamp(88px, 10vw, 150px); }
.philo__grid {
  display: flex; gap: clamp(48px, 6vw, 96px); align-items: flex-start;
  margin-top: clamp(56px, 6vw, 96px);
}
.philo__text { flex: 1 1 auto; max-width: 1080px; }
.philo__lead {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(21px, 2.6vw, 38px); line-height: 1.7; letter-spacing: 0.04em;
}
.philo__lead .red { color: var(--seal); }
.philo__desc {
  margin-top: 34px; max-width: 720px;
  color: var(--brown); font-size: 15px; line-height: 2;
}
.philo__tags {
  flex: 0 0 auto; display: flex; flex-direction: column; gap: 14px; padding-top: 8px;
}
.philo__tag {
  border: 1px solid var(--ink); padding: 10px 22px;
  font-size: 13px; letter-spacing: 0.22em; white-space: nowrap;
  font-family: var(--serif);
}
.pillars {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 2px; background: var(--ink); border: 1px solid var(--ink);
}
.pillar { background: var(--bg-light); padding: clamp(30px, 3vw, 48px); }
.pillar__no {
  font-family: "Helvetica Neue", var(--sans); font-size: 13px;
  color: var(--seal); letter-spacing: 0.2em;
}
.pillar__title {
  font-family: var(--serif); font-size: clamp(21px, 1.8vw, 26px);
  font-weight: 500; letter-spacing: 0.08em; margin-top: 16px;
}
.pillar__en { font-size: 11px; letter-spacing: 0.26em; color: var(--taupe); margin-top: 6px; text-transform: uppercase; }
.pillar__desc { margin-top: 20px; font-size: 14px; color: var(--brown); line-height: 1.95; }

/* 品牌故事 · 名字由来 */
.story {
  margin-top: clamp(56px, 6vw, 96px);
  display: grid; grid-template-columns: 1fr;
  gap: clamp(48px, 5vw, 80px);
  max-width: 880px;
}
.story__no {
  font-size: 12px; letter-spacing: 0.32em; color: var(--seal);
  font-weight: 400;
}
.story__title {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(21px, 2.2vw, 30px); letter-spacing: 0.06em;
  margin-top: 14px; line-height: 1.5;
}
.story__text { margin-top: 18px; font-size: 15px; color: var(--brown); line-height: 2.05; }
.story__text strong { font-weight: 500; color: var(--seal); }

/* 命名联句：居中大字书法感收尾 */
.couplet {
  margin-top: clamp(64px, 7vw, 110px);
  padding: clamp(48px, 6vw, 88px) clamp(20px, 4vw, 64px);
  border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink);
  text-align: center;
}
.couplet__tag { font-size: 12px; letter-spacing: 0.42em; color: var(--taupe); text-indent: 0.42em; }
.couplet__line {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(26px, 4.6vw, 58px);
  letter-spacing: 0.14em; line-height: 1.8;
  color: var(--ink);
}
.couplet__line:first-of-type { margin-top: 26px; }
.couplet__en { margin-top: 30px; font-size: 11.5px; letter-spacing: 0.34em; color: var(--seal); }

/* 公司介绍收尾段 */
.philo__closing {
  margin-top: clamp(48px, 5.5vw, 80px);
  display: flex; gap: clamp(40px, 5vw, 80px); align-items: flex-start;
}
.philo__closing-text { flex: 1 1 auto; max-width: 760px; }
.philo__closing .philo__desc { margin-top: 0; }
.philo__endline {
  margin-top: 28px;
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(17px, 1.7vw, 22px); letter-spacing: 0.05em; line-height: 1.9;
}
.philo__endline .red { color: var(--seal); }

/* 立场如何落地 · 三大支柱 */
.pillars-head {
  margin-top: clamp(64px, 7vw, 110px);
  margin-bottom: clamp(28px, 3vw, 44px);
  display: flex; align-items: baseline; gap: 24px; flex-wrap: wrap;
}
.pillars-head__title {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(22px, 2.4vw, 34px); letter-spacing: 0.08em;
}

/* ---------- 信任体系 ---------- */
.trust { background: #fff; padding-bottom: clamp(88px, 10vw, 150px); }
.trust__intro {
  margin-top: clamp(44px, 5vw, 72px); max-width: 760px;
  color: var(--brown); font-size: 15px; line-height: 2;
}
.trust__wall {
  margin-top: clamp(48px, 5vw, 72px);
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 2px; background: var(--ink); border: 1px solid var(--ink);
}
.tcell { background: #fff; padding: clamp(28px, 2.6vw, 44px); min-height: 210px; display: flex; flex-direction: column; }
.tcell__num {
  font-family: "Helvetica Neue", var(--sans); font-weight: 300;
  font-size: clamp(34px, 3.2vw, 52px); line-height: 1; color: var(--seal);
  font-variant-numeric: tabular-nums;
}
.tcell__num small { font-size: 0.42em; margin-left: 3px; }
.tcell__title { font-family: var(--serif); font-size: 18px; font-weight: 500; letter-spacing: 0.06em; margin-top: 18px; }
.tcell__desc { margin-top: 12px; font-size: 13.5px; color: var(--brown); line-height: 1.9; flex: 1; }
.trust__note { margin-top: 34px; font-size: 12.5px; letter-spacing: 0.1em; color: var(--taupe); }

/* ---------- 案例 ---------- */
.works { background: var(--bg-case); padding-bottom: clamp(88px, 10vw, 150px); }
.feat {
  margin-top: clamp(52px, 6vw, 88px);
  background: #fff; border: 1px solid var(--ink);
}
.feat__media { position: relative; overflow: hidden; aspect-ratio: 21 / 9; background: var(--dark); }
.feat__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.4s var(--ease-out); }
.feat:hover .feat__media img { transform: scale(1.03); }
.feat__badge {
  position: absolute; top: 22px; left: 22px;
  background: var(--seal); color: #fff;
  font-size: 12px; letter-spacing: 0.2em; padding: 8px 16px;
}
.feat__body { padding: clamp(28px, 3.5vw, 56px); border-top: 1px solid var(--ink); }
.feat__kicker { font-size: 12px; letter-spacing: 0.28em; color: var(--seal); }
.feat__title {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(26px, 3vw, 44px); letter-spacing: 0.06em; margin-top: 14px;
}
.feat__desc { margin-top: 20px; max-width: 860px; color: var(--brown); font-size: 15px; line-height: 2; }
.feat__zones { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 10px; }
.feat__zone {
  font-size: 12.5px; letter-spacing: 0.12em; color: var(--brown);
  border: 1px solid rgba(26, 26, 26, 0.35); padding: 6px 14px;
}
.feat__thumbs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; background: var(--ink); border-top: 1px solid var(--ink); }
.feat__thumb { aspect-ratio: 4 / 3; overflow: hidden; background: var(--dark); }
.feat__thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease-out); }
.feat__thumb:hover img { transform: scale(1.05); }

.case-grid {
  margin-top: clamp(40px, 5vw, 72px);
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 2px; background: var(--ink); border: 1px solid var(--ink);
}
.case-card { background: #fff; display: flex; flex-direction: column; }
.case-card__img {
  position: relative; aspect-ratio: 16 / 9; overflow: hidden;
  background:
    radial-gradient(120% 90% at 20% 10%, rgba(165, 52, 42, 0.10), transparent 55%),
    linear-gradient(150deg, #e8dfd0 0%, #d9cdb8 45%, #c9bba3 100%);
}
.case-card__img img { width: 100%; height: 100%; object-fit: cover; }
.case-card__img--ph {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px;
}
.case-card__ph-seal {
  width: 46px; height: 46px; border: 1px solid rgba(26,26,26,0.4);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--serif); color: var(--seal); font-size: 20px;
}
.case-card__ph-text { font-size: 12px; letter-spacing: 0.26em; color: rgba(26,26,26,0.55); }
.case-card__img::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(12,9,6,0.18));
  pointer-events: none;
}
.case-card__foot {
  border-top: 1px solid var(--ink);
  padding: 20px 26px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.case-card__meta { font-size: 11.5px; letter-spacing: 0.22em; color: var(--taupe); }
.case-card__name { font-family: var(--serif); font-size: 18px; font-weight: 500; letter-spacing: 0.05em; margin-top: 5px; }
.case-card__go { font-size: 12.5px; letter-spacing: 0.16em; color: var(--seal); white-space: nowrap; }

/* ---------- 产品体系 ---------- */
.products { background: var(--dark); color: var(--yuebai); padding-bottom: clamp(88px, 10vw, 150px); }
.products__intro { margin-top: clamp(40px, 4.5vw, 64px); max-width: 760px; color: rgba(245,240,232,0.75); font-size: 15px; line-height: 2; }
.funnel {
  margin-top: clamp(48px, 5vw, 72px);
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 2px; background: rgba(245, 240, 232, 0.3);
  border: 1px solid rgba(245, 240, 232, 0.3);
}
.fstep { background: var(--dark); padding: 26px 22px; }
.fstep__lv { font-size: 11px; letter-spacing: 0.28em; color: var(--taupe); }
.fstep__name { font-family: var(--serif); font-size: 18px; letter-spacing: 0.05em; margin-top: 12px; }
.fstep__price { margin-top: 8px; font-size: 13px; color: var(--pink); font-variant-numeric: tabular-nums; }
.fstep__desc { margin-top: 12px; font-size: 12.5px; color: rgba(245,240,232,0.62); line-height: 1.85; }
.sku-grid {
  margin-top: clamp(44px, 5vw, 72px);
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 2px; background: rgba(245, 240, 232, 0.3);
  border: 1px solid rgba(245, 240, 232, 0.3);
}
.sku { background: var(--dark); padding: 30px 24px; display: flex; flex-direction: column; min-height: 300px; }
.sku__no { font-family: "Helvetica Neue", var(--sans); font-size: 12px; letter-spacing: 0.24em; color: var(--seal); }
.sku__name { font-family: var(--serif); font-size: 21px; font-weight: 500; letter-spacing: 0.06em; margin-top: 14px; }
.sku__pillar { font-size: 11px; letter-spacing: 0.22em; color: var(--taupe); margin-top: 6px; }
.sku__slogan { margin-top: 16px; font-size: 13px; line-height: 1.9; color: rgba(245,240,232,0.78); flex: 1; }
.sku__price { margin-top: 18px; padding-top: 16px; border-top: 1px solid rgba(245,240,232,0.2); font-size: 13px; color: var(--pink); font-variant-numeric: tabular-nums; }
.sku__link { margin-top: 10px; font-size: 12px; letter-spacing: 0.2em; color: rgba(245,240,232,0.6); transition: color 0.25s; }
.sku__link:hover { color: var(--yuebai); }
.products__more { margin-top: clamp(44px, 5vw, 64px); display: flex; align-items: center; gap: 30px; flex-wrap: wrap; }

/* 旋转环形徽章 */
.badge-ring { position: relative; width: 150px; height: 150px; flex: 0 0 auto; }
.badge-ring svg { width: 100%; height: 100%; animation: ring-spin 25s linear infinite; transform: rotate(-15deg); }
.badge-ring text {
  font-size: 11.5px; letter-spacing: 0.32em; fill: var(--yuebai);
  font-family: var(--sans);
}
.badge-ring__core {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-family: var(--serif); font-size: 22px; color: var(--seal); letter-spacing: 0.1em;
}
@keyframes ring-spin { to { transform: rotate(345deg); } }

/* ---------- 团队 ---------- */
.team { background: #fff; padding-bottom: clamp(88px, 10vw, 150px); }
.founder {
  margin-top: clamp(52px, 6vw, 88px);
  display: grid; grid-template-columns: minmax(300px, 460px) 1fr;
  gap: clamp(48px, 6vw, 96px); align-items: start;
}
.founder__photo-card { border: 1px solid var(--ink); padding: 14px; background: #fff; }
.founder__photo { position: relative; aspect-ratio: 4 / 5; overflow: hidden; background: var(--bg-case); }
.founder__photo img { width: 100%; height: 100%; object-fit: cover; object-position: center 22%; }
.founder__photo-cap {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 40px 22px 18px;
  background: linear-gradient(180deg, transparent, rgba(12,9,6,0.72));
  color: var(--yuebai);
}
.founder__photo-cap .zh { font-family: var(--serif); font-size: 20px; letter-spacing: 0.12em; }
.founder__photo-cap .en { font-size: 10.5px; letter-spacing: 0.26em; color: rgba(245,240,232,0.75); margin-top: 4px; }
.founder__award-line { display: flex; align-items: center; gap: 14px; margin-top: 18px; }
.founder__award-seal { background: var(--seal); color: #fff; font-size: 12px; letter-spacing: 0.16em; padding: 7px 12px; white-space: nowrap; }
.founder__award-text { font-size: 12.5px; color: var(--brown); line-height: 1.6; }
.founder__quote {
  font-family: var(--serif); font-size: clamp(19px, 1.9vw, 26px);
  font-weight: 500; line-height: 1.75; letter-spacing: 0.04em;
}
.founder__bio { margin-top: 22px; color: var(--brown); font-size: 14.5px; line-height: 2; max-width: 640px; }
.timeline { margin-top: 36px; }
.tl-row {
  display: grid; grid-template-columns: 96px 1fr; gap: 24px;
  padding: 15px 0; border-top: 1px solid rgba(26, 26, 26, 0.25);
}
.tl-row:last-child { border-bottom: 1px solid rgba(26, 26, 26, 0.25); }
.tl-year {
  font-family: "Helvetica Neue", var(--sans); font-size: 19px; font-weight: 300;
  color: var(--seal); font-variant-numeric: tabular-nums; letter-spacing: 0.04em;
}
.tl-body h4 { font-family: var(--serif); font-size: 16.5px; font-weight: 500; letter-spacing: 0.05em; }
.tl-body p { font-size: 13.5px; color: var(--brown); margin-top: 6px; line-height: 1.9; }
.certs { margin-top: 40px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 28px; }
.certs--side { margin-top: 26px; grid-template-columns: 1fr; gap: 11px; }
.cert { display: flex; align-items: baseline; gap: 12px; font-size: 14px; color: var(--brown); }
.cert::before { content: ""; flex: 0 0 8px; height: 8px; border-top: 2px solid var(--seal); transform: translateY(-3px); }
.cert b { font-weight: 500; color: var(--ink); font-family: "Helvetica Neue", var(--sans); letter-spacing: 0.04em; }

/* 合伙人 + 团队网络 */
.honor-head { margin-top: clamp(56px, 6vw, 90px); }
.honor-head h3 { font-family: var(--serif); font-size: clamp(20px, 2vw, 26px); font-weight: 500; letter-spacing: 0.08em; margin-top: 10px; }
.honor-head p { font-size: 13.5px; color: var(--brown); margin-top: 10px; line-height: 1.9; }
.team-grid {
  margin-top: clamp(56px, 6vw, 90px);
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 2px; background: var(--ink); border: 1px solid var(--ink);
}
.mate { background: #fff; padding: clamp(30px, 3.4vw, 52px); }
.mate__role { font-size: 11.5px; letter-spacing: 0.28em; color: var(--seal); }
.mate__photo {
  float: right; width: 104px; height: 132px; object-fit: cover;
  margin: 4px 0 16px 22px; border: 1px solid rgba(26, 26, 26, 0.25);
}
@media (max-width: 900px) { .mate__photo { width: 88px; height: 112px; margin-left: 16px; } }
.mate__name { font-family: var(--serif); font-size: 24px; font-weight: 500; letter-spacing: 0.08em; margin-top: 12px; }
.mate__en { font-size: 11px; letter-spacing: 0.24em; color: var(--taupe); margin-top: 4px; }
.mate__desc { margin-top: 18px; font-size: 14px; color: var(--brown); line-height: 1.95; }
.mate__persona {
  display: inline-block; margin-top: 14px;
  border: 1px solid var(--seal); color: var(--seal);
  font-family: var(--serif); font-size: 12.5px; letter-spacing: 0.14em;
  padding: 6px 14px;
}
.mate__projects { margin-top: 16px; font-size: 12.5px; color: var(--taupe); line-height: 1.9; letter-spacing: 0.04em; }
.mate__motto { margin-top: 16px; padding-top: 16px; border-top: 1px solid rgba(26,26,26,0.2); font-family: var(--serif); font-size: 14.5px; color: var(--ink); }
/* 资质/奖项墙 */
.honor-wall {
  margin-top: clamp(56px, 6vw, 90px);
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 2px; background: var(--ink); border: 1px solid var(--ink);
}
.honor { background: #fff; padding: 24px 28px; display: flex; gap: 20px; align-items: baseline; }
.honor__yr {
  flex: 0 0 auto; font-family: "Helvetica Neue", var(--sans);
  color: var(--seal); font-size: 16px; font-variant-numeric: tabular-nums; letter-spacing: 0.04em;
}
.honor__txt { font-size: 13.5px; color: var(--brown); line-height: 1.7; }

/* ---------- 流程 ---------- */
.process { background: var(--bg-light); padding-bottom: clamp(88px, 10vw, 150px); }
.steps6 {
  margin-top: clamp(48px, 5.5vw, 80px);
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 2px; background: var(--ink); border: 1px solid var(--ink);
}
.step6 { background: var(--bg-light); padding: clamp(26px, 2.8vw, 42px); }
.step6__no {
  font-family: "Helvetica Neue", var(--sans); font-weight: 300;
  font-size: 30px; color: var(--seal); font-variant-numeric: tabular-nums;
}
.step6__title { font-family: var(--serif); font-size: 19px; font-weight: 500; letter-spacing: 0.06em; margin-top: 14px; }
.step6__desc { margin-top: 12px; font-size: 13.5px; color: var(--brown); line-height: 1.9; }
.stages { margin-top: clamp(48px, 5vw, 72px); }
.stages__title { font-family: var(--serif); font-size: clamp(20px, 2vw, 28px); font-weight: 500; letter-spacing: 0.06em; }
.stages__list { margin-top: 28px; display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; border: 1px solid var(--ink); }
.stage { padding: 22px 18px; border-left: 1px solid var(--ink); }
.stage:first-child { border-left: none; }
.stage__no { font-size: 11px; letter-spacing: 0.24em; color: var(--taupe); }
.stage__name { font-family: var(--serif); font-size: 15.5px; font-weight: 500; margin-top: 10px; letter-spacing: 0.04em; }
.stage__desc { font-size: 12px; color: var(--brown); margin-top: 8px; line-height: 1.8; }

/* ---------- 合作品牌 ---------- */
.brands { background: #fff; padding-bottom: clamp(88px, 10vw, 150px); }
.brands__wall {
  margin-top: clamp(44px, 5vw, 72px);
  border-top: 1px solid var(--ink); border-left: 1px solid var(--ink);
  display: grid; grid-template-columns: repeat(6, 1fr);
}
.brand-cell {
  border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink);
  padding: 20px 14px; text-align: center;
  font-size: 13px; letter-spacing: 0.06em; color: var(--brown);
  display: flex; align-items: center; justify-content: center; min-height: 72px;
  transition: background 0.3s, color 0.3s;
}
.brand-cell:hover { background: var(--dark); color: var(--yuebai); }
.brands__note { margin-top: 28px; font-size: 12.5px; letter-spacing: 0.1em; color: var(--taupe); }

/* ---------- 预约咨询 ---------- */
.contact { background: var(--dark); color: var(--yuebai); }
.contact__grid { display: grid; grid-template-columns: 1fr 1fr; min-height: 720px; }
.contact__visual { position: relative; overflow: hidden; border-right: 1px solid rgba(245,240,232,0.18); }
.contact__glow {
  position: absolute; inset: -20%;
  background:
    radial-gradient(45% 38% at 30% 32%, rgba(214, 162, 110, 0.32), transparent 70%),
    radial-gradient(50% 42% at 72% 60%, rgba(165, 52, 42, 0.22), transparent 70%),
    radial-gradient(38% 34% at 45% 82%, rgba(240, 200, 160, 0.16), transparent 70%);
  filter: blur(30px);
  animation: glow-breathe 11s ease-in-out infinite alternate;
}
@keyframes glow-breathe {
  from { transform: translate3d(-2%, -1%, 0) scale(1); opacity: 0.85; }
  to { transform: translate3d(2.5%, 2%, 0) scale(1.08); opacity: 1; }
}
.contact__visual-body {
  position: relative; z-index: 2; height: 100%;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: clamp(36px, 4vw, 64px);
}
.contact__title {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(30px, 3.6vw, 54px); letter-spacing: 0.06em; line-height: 1.3;
}
.contact__flow { margin-top: 26px; font-size: 12.5px; letter-spacing: 0.2em; color: rgba(245,240,232,0.7); line-height: 2.1; }
.contact__info { margin-top: 34px; padding-top: 26px; border-top: 1px solid rgba(245,240,232,0.25); font-size: 14px; line-height: 2.1; color: rgba(245,240,232,0.85); }
.contact__info b { font-weight: 400; color: var(--pink); letter-spacing: 0.08em; }
.contact__form-side { padding: clamp(36px, 4.5vw, 72px); display: flex; flex-direction: column; justify-content: center; }
.contact__form-head { margin-bottom: 38px; }
.contact__form-title { font-family: var(--serif); font-size: clamp(20px, 1.8vw, 26px); font-weight: 500; letter-spacing: 0.05em; margin-top: 16px; }
.field { position: relative; margin-bottom: 30px; }
.field label {
  display: block; font-size: 11.5px; letter-spacing: 0.26em;
  color: rgba(245,240,232,0.6); margin-bottom: 8px;
}
.field input, .field select, .field textarea {
  width: 100%; background: transparent; border: none;
  border-bottom: 1px solid rgba(245, 240, 232, 0.32);
  color: var(--yuebai); font-size: 15px; padding: 8px 2px 12px;
  outline: none; transition: border-color 0.3s; border-radius: 0;
  font-weight: 300;
}
.field select { appearance: none; -webkit-appearance: none; cursor: pointer; }
.field select option { color: var(--ink); background: var(--bg-light); }
.field textarea { resize: vertical; min-height: 72px; }
.field input:focus, .field select:focus, .field textarea:focus { border-bottom-color: var(--yuebai); }
.field ::placeholder { color: rgba(245,240,232,0.35); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.form-ok {
  display: none; margin-top: 24px; padding: 18px 22px;
  border: 1px solid rgba(240, 200, 192, 0.5); color: var(--pink);
  font-size: 14px; line-height: 1.9;
}
.form-ok.is-show { display: block; }

/* ---------- 页脚 ---------- */
.footer { background: var(--bg-light); border-top: 1px solid var(--ink); overflow: hidden; }
.footer__cols {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: clamp(28px, 3.5vw, 56px);
  padding-top: clamp(64px, 7vw, 110px);
}
.footer__col h5 { font-size: 12px; letter-spacing: 0.3em; color: var(--taupe); font-weight: 400; margin-bottom: 20px; }
.footer__col p, .footer__col li { font-size: 14px; color: var(--brown); line-height: 2.1; }
.footer__col a:hover { color: var(--seal); }
.footer__mark {
  margin-top: clamp(48px, 6vw, 90px);
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(96px, 24vw, 380px);
  line-height: 0.9; letter-spacing: 0.04em;
  text-align: center; color: var(--ink);
  transform: translateY(14%);
  user-select: none; -webkit-user-select: none;
  white-space: nowrap;
}
.footer__bar {
  border-top: 1px solid rgba(26, 26, 26, 0.25);
  padding: 22px 0 26px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 12px; letter-spacing: 0.12em; color: var(--taupe);
  background: var(--bg-light); position: relative; z-index: 2;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .pillars, .trust__wall, .steps6, .honor-wall { grid-template-columns: repeat(2, 1fr); }
  .pillar:last-child { grid-column: 1 / -1; }
  .sku-grid { grid-template-columns: repeat(3, 1fr); }
  .funnel { grid-template-columns: repeat(3, 1fr); }
  .fstep:nth-child(5), .sku:nth-child(5) { grid-column: span 2; }
  .stages__list { grid-template-columns: repeat(3, 1fr); }
  .stage:nth-child(4) { border-left: none; }
  .stage { border-top: 1px solid var(--ink); }
  .stage:nth-child(-n+3) { border-top: none; }
  .brands__wall { grid-template-columns: repeat(4, 1fr); }
  .footer__cols { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .nav__links {
    position: fixed; top: 0; right: 0; bottom: 0;
    width: min(78vw, 340px);
    flex-direction: column; align-items: flex-start; justify-content: center;
    gap: 26px; padding: 88px 40px 40px;
    background: rgba(20, 16, 12, 0.97);
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    color: var(--yuebai);
    transform: translateX(100%);
    transition: transform 0.5s var(--ease-out);
    font-size: 16px;
    z-index: -1;
  }
  .nav__links.is-open { transform: translateX(0); z-index: 99; }
  .nav__links.is-open a { position: relative; z-index: 100; }
  .nav__cta { margin-left: 0; color: var(--pink); }
  .nav__burger { display: flex; z-index: 101; }
  .nav.is-menu-open { color: var(--yuebai); }
  .nav.is-menu-open.is-solid { background: transparent; backdrop-filter: none; -webkit-backdrop-filter: none; }
  .nav.is-menu-open.is-solid::after { background: transparent; }

  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .hero__stat:nth-child(3) { border-left: none; }
  .hero__stat { border-top: 1px solid rgba(245,240,232,0.22); }
  .hero__stat:nth-child(-n+2) { border-top: none; }

  .philo__closing { flex-direction: column; }
  .philo__tags { flex-direction: row; flex-wrap: wrap; }
  .founder { grid-template-columns: 1fr; }
  .founder__photo-card { max-width: 460px; }
  .case-grid { grid-template-columns: 1fr; }
  .feat__media { aspect-ratio: 16 / 9; }
  .contact__grid { grid-template-columns: 1fr; }
  .contact__visual { min-height: 480px; border-right: none; border-bottom: 1px solid rgba(245,240,232,0.18); }
}

@media (max-width: 640px) {
  .pillars, .trust__wall, .steps6, .honor-wall, .team-grid, .form-row { grid-template-columns: 1fr; }
  .sku-grid, .funnel { grid-template-columns: 1fr; }
  .stages__list { grid-template-columns: 1fr 1fr; }
  .stage, .stage:nth-child(-n+3) { border-top: 1px solid var(--ink); }
  .stage:nth-child(-n+2) { border-top: none; }
  .stage:nth-child(odd) { border-left: none; }
  .brands__wall { grid-template-columns: repeat(2, 1fr); }
  .footer__cols { grid-template-columns: 1fr; }
  .feat__thumbs { grid-template-columns: 1fr; }
  .feat__thumb { aspect-ratio: 16 / 10; }
  .hero__ctas { gap: 22px; }
  .tl-row { grid-template-columns: 72px 1fr; gap: 16px; }
  .certs { grid-template-columns: 1fr; }
}