/* ===== 晶景官网 样式 ===== */
:root {
  --cream: #FAF6EE;
  --cream-2: #F3EBDD;
  --green-950: #1E2E26;
  --green-900: #22382D;
  --green-700: #33543F;
  --green-500: #4E7A5F;
  --green-100: #E4EDE4;
  --brown-700: #7A5233;
  --brown-500: #A9744F;
  --gold-500: #C9A24B;
  --gold-600: #B08A33;
  --ink: #2B2A26;
  --ink-2: #5C574E;
  --white: #FFFFFF;
  --radius: 20px;
  --radius-sm: 14px;
  --shadow: 0 10px 30px rgba(43, 42, 38, 0.08);
  --shadow-lg: 0 20px 50px rgba(43, 42, 38, 0.12);
  --font-serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", "STSong", "SimSun", serif;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { width: min(1100px, 92%); margin: 0 auto; }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 26px;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-lg { padding: 15px 34px; font-size: 16px; }
.btn-sm { padding: 8px 18px; font-size: 13px; }

.btn-primary { background: var(--green-700); color: #fff; box-shadow: 0 8px 20px rgba(51, 84, 63, .3); }
.btn-primary:hover { background: var(--green-900); }

.btn-gold { background: linear-gradient(135deg, #D9B45F, var(--gold-500)); color: #3A2E16; box-shadow: 0 8px 20px rgba(201, 162, 75, .35); }
.btn-gold:hover { filter: brightness(1.04); }

.btn-ghost { background: transparent; color: var(--green-700); border-color: var(--green-700); }
.btn-ghost:hover { background: var(--green-100); }

/* 眉题 */
.eyebrow {
  font-size: 13px;
  letter-spacing: .35em;
  color: var(--gold-600);
  font-weight: 600;
  margin-bottom: 14px;
}
.section-head.light .eyebrow { color: #E4C97F; }

/* 区块标题 */
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.35;
  color: var(--green-950);
  font-weight: 700;
  letter-spacing: .02em;
}
.section-head .lead { margin-top: 16px; color: var(--ink-2); font-size: 16px; }

.section { padding: 96px 0; }

/* ===== 导航 ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 246, 238, .88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(51, 84, 63, .08);
  transition: box-shadow .3s ease;
}
.nav.scrolled { box-shadow: 0 6px 24px rgba(43, 42, 38, .08); }

.nav-inner { display: flex; align-items: center; gap: 32px; height: 72px; }

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 38px; height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--green-500), var(--green-900));
  color: #F3EBDD;
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px rgba(51, 84, 63, .3);
}
.brand-name { font-family: var(--font-serif); font-size: 20px; font-weight: 700; color: var(--green-950); }
.brand-name small { font-size: 11px; font-weight: 400; color: var(--ink-2); margin-left: 6px; letter-spacing: .1em; }

.nav-links { display: flex; gap: 28px; margin-left: auto; }
.nav-links a { font-size: 15px; color: var(--ink-2); transition: color .2s ease; }
.nav-links a:hover { color: var(--green-700); }

.nav-cta { margin-left: 8px; }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--green-950); margin: 5px 0; border-radius: 2px; }

/* ===== 首屏 ===== */
.hero { position: relative; overflow: hidden; padding: 88px 0 72px; }
.hero-deco {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(600px 320px at 88% 18%, rgba(201, 162, 75, .14), transparent 60%),
    radial-gradient(700px 420px at 8% 88%, rgba(78, 122, 95, .12), transparent 60%);
}
.hero-deco::before {
  content: "";
  position: absolute; top: -120px; right: -140px;
  width: 420px; height: 420px; border-radius: 50%;
  border: 60px solid rgba(78, 122, 95, .07);
}
.hero-deco::after {
  content: "";
  position: absolute; bottom: -160px; left: -120px;
  width: 380px; height: 380px; border-radius: 50%;
  border: 50px solid rgba(201, 162, 75, .1);
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  align-items: center;
  gap: 48px;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(34px, 5.2vw, 56px);
  line-height: 1.25;
  color: var(--green-950);
  letter-spacing: .02em;
  margin: 10px 0 22px;
}

.hero-sub { font-size: 17px; color: var(--ink-2); margin-bottom: 34px; }

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }

.hero-points { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-points li {
  font-size: 13px;
  color: var(--green-700);
  background: var(--green-100);
  border: 1px solid rgba(78, 122, 95, .25);
  padding: 6px 16px;
  border-radius: 999px;
  font-weight: 600;
}

.hero-art { text-align: center; position: relative; }
.hero-art img {
  width: min(360px, 82%);
  margin: 0 auto;
  animation: float 5s ease-in-out infinite;
  filter: drop-shadow(0 18px 30px rgba(43, 42, 38, .16));
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.hero-caption { margin-top: 22px; font-family: var(--font-serif); color: var(--brown-700); font-size: 15px; letter-spacing: .2em; }

/* ===== 三步 ===== */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.step-card {
  background: #fff;
  border: 1px solid rgba(51, 84, 63, .1);
  border-radius: var(--radius);
  padding: 34px 30px;
  box-shadow: var(--shadow);
  position: relative;
  transition: transform .25s ease, box-shadow .25s ease;
}
.step-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.step-num {
  font-family: var(--font-serif);
  font-size: 40px;
  color: var(--gold-500);
  font-weight: 700;
  line-height: 1;
  display: block;
  margin-bottom: 18px;
}
.step-card h3 { font-family: var(--font-serif); font-size: 22px; color: var(--green-950); margin-bottom: 12px; }
.step-card p { color: var(--ink-2); font-size: 15px; }

.demo-banner {
  margin-top: 40px;
  background: linear-gradient(120deg, var(--green-900), var(--green-700));
  border-radius: var(--radius);
  padding: 34px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  color: #F3EBDD;
  box-shadow: var(--shadow-lg);
}
.demo-banner h3 { font-family: var(--font-serif); font-size: 22px; margin-bottom: 6px; }
.demo-banner p { color: rgba(243, 235, 221, .8); font-size: 14px; }

/* ===== 胃兜兜区 ===== */
.section-mascot { background: var(--cream-2); }
.mascot-inner {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  align-items: center;
  gap: 56px;
}
.mascot-img { width: min(360px, 80%); margin: 0 auto; filter: drop-shadow(0 18px 30px rgba(43, 42, 38, .14)); }
.mascot-copy h2 { font-family: var(--font-serif); font-size: clamp(26px, 3.6vw, 38px); color: var(--green-950); margin-bottom: 18px; }
.mascot-copy p { color: var(--ink-2); font-size: 16px; margin-bottom: 28px; max-width: 46ch; }

/* ===== B端 ===== */
.section-partner {
  background: linear-gradient(160deg, var(--green-950) 0%, var(--green-900) 60%, #2C4437 100%);
  color: #F3EBDD;
}
.section-partner .section-head h2 { color: #F7F1E4; }
.section-partner .section-head .lead { color: rgba(243, 235, 221, .75); }

.partner-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 24px; }
.pain-card, .solution-card {
  border-radius: var(--radius);
  padding: 34px 32px;
  border: 1px solid rgba(243, 235, 221, .14);
}
.pain-card { background: rgba(122, 82, 51, .16); }
.solution-card { background: rgba(201, 162, 75, .12); border-color: rgba(201, 162, 75, .3); }
.pain-card h3, .solution-card h3 { font-family: var(--font-serif); font-size: 20px; margin-bottom: 18px; }
.pain-card h3 { color: #E8C9A8; }
.solution-card h3 { color: #EAD9A8; }
.pain-card li, .solution-card li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 12px;
  font-size: 15px;
  color: rgba(243, 235, 221, .88);
}
.pain-card li::before { content: "·"; position: absolute; left: 4px; color: #D9A37F; font-weight: 700; }
.solution-card li::before { content: "＋"; position: absolute; left: 2px; color: var(--gold-500); font-weight: 700; }

.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin: 24px 0 40px; }
.value-card {
  background: rgba(243, 235, 221, .06);
  border: 1px solid rgba(243, 235, 221, .14);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform .25s ease, background .25s ease;
}
.value-card:hover { transform: translateY(-5px); background: rgba(243, 235, 221, .1); }
.value-card span { font-family: var(--font-serif); font-size: 30px; color: var(--gold-500); font-weight: 700; display: block; margin-bottom: 12px; }
.value-card h3 { font-size: 18px; margin-bottom: 10px; color: #F7F1E4; }
.value-card p { font-size: 14px; color: rgba(243, 235, 221, .72); }

.partner-cta { text-align: center; }
.partner-cta p { font-family: var(--font-serif); font-size: 20px; color: #F7F1E4; margin-bottom: 18px; }

/* ===== 企业文化 ===== */
.culture-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.culture-card {
  background: #fff;
  border: 1px solid rgba(51, 84, 63, .1);
  border-radius: var(--radius);
  padding: 34px 30px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform .25s ease, box-shadow .25s ease;
}
.culture-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.culture-card h3 { font-family: var(--font-serif); font-size: 20px; color: var(--green-700); margin-bottom: 12px; }
.culture-card p { color: var(--ink-2); font-size: 15px; }

.story {
  margin-top: 48px;
  background: #fff;
  border-radius: var(--radius);
  padding: 44px 46px;
  box-shadow: var(--shadow);
  border-left: 5px solid var(--gold-500);
}
.story h3 { font-family: var(--font-serif); font-size: 24px; color: var(--green-950); margin-bottom: 16px; }
.story p { color: var(--ink-2); font-size: 15.5px; max-width: 72ch; }
.story .story-note { margin-top: 14px; font-size: 13px; color: #A89F8E; }

/* ===== 联系 ===== */
.section-contact { padding-bottom: 110px; }
.contact-card {
  background: linear-gradient(140deg, var(--green-900), var(--green-700));
  border-radius: 28px;
  padding: 56px 60px;
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 48px;
  align-items: center;
  color: #F3EBDD;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.contact-card::before {
  content: "";
  position: absolute; top: -80px; right: -80px;
  width: 260px; height: 260px; border-radius: 50%;
  border: 40px solid rgba(201, 162, 75, .12);
}
.contact-card h2 { font-family: var(--font-serif); font-size: clamp(26px, 3.4vw, 36px); color: #F7F1E4; margin-bottom: 14px; }
.contact-card > div > p { color: rgba(243, 235, 221, .8); font-size: 15px; }
.contact-list { margin: 22px 0; }
.contact-list li { position: relative; padding-left: 26px; margin-bottom: 10px; font-size: 15px; color: rgba(243, 235, 221, .92); }
.contact-list li::before {
  content: "";
  position: absolute; left: 0; top: 7px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--gold-500);
  box-shadow: inset 0 0 0 3px rgba(243, 235, 221, .25);
}
.contact-tip { font-size: 13px !important; color: #E4C97F !important; }

.qr-box { text-align: center; position: relative; z-index: 1; }
.qr-img, .qr-fallback {
  width: 220px; height: 220px;
  border-radius: 18px;
  background: #fff;
  margin: 0 auto;
  box-shadow: 0 14px 34px rgba(0, 0, 0, .25);
}
.qr-img { object-fit: contain; padding: 12px; }
.qr-fallback {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 8px;
}
.qr-fallback p { font-size: 13px; color: var(--ink-2); line-height: 1.6; }
.qr-mark {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--green-500), var(--green-900));
  color: #F3EBDD;
  font-size: 15px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
}
.qr-note { margin-top: 16px; font-size: 13px; color: rgba(243, 235, 221, .8); letter-spacing: .12em; }

/* ===== 页脚 ===== */
.footer { border-top: 1px solid rgba(51, 84, 63, .1); padding: 36px 0; background: var(--cream); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-brand { font-family: var(--font-serif); font-size: 16px; color: var(--green-950); font-weight: 700; }
.footer-line { font-size: 12px; color: var(--ink-2); margin-top: 4px; letter-spacing: .15em; }
.footer-copy { font-size: 13px; color: var(--ink-2); }

/* ===== 滚动显现 ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ===== 演示页 ===== */
.demo-body { background: linear-gradient(160deg, var(--green-100), var(--cream) 40%, var(--cream-2)); min-height: 100vh; }

.demo-header { background: rgba(250, 246, 238, .9); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(51, 84, 63, .08); position: sticky; top: 0; z-index: 100; }
.demo-header-inner { display: flex; align-items: center; justify-content: space-between; height: 66px; }

.demo-main { padding: 48px 0 80px; }

.chat-card {
  width: min(760px, 94%);
  margin: 0 auto;
  background: #fff;
  border-radius: 26px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(51, 84, 63, .12);
  overflow: hidden;
}

.chat-head {
  display: flex; align-items: center; gap: 16px;
  padding: 20px 26px;
  background: linear-gradient(120deg, var(--green-900), var(--green-700));
  color: #F3EBDD;
}
.chat-avatar { width: 52px; height: 52px; border-radius: 50%; background: var(--cream); object-fit: cover; }
.chat-name { font-family: var(--font-serif); font-size: 17px; font-weight: 700; display: flex; align-items: center; gap: 8px; }
.chat-badge {
  font-size: 11px; font-weight: 600;
  background: var(--gold-500); color: #3A2E16;
  padding: 2px 10px; border-radius: 999px;
  letter-spacing: .05em;
}
.chat-status { font-size: 12px; color: rgba(243, 235, 221, .75); display: flex; align-items: center; gap: 6px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: #7ED6A5; box-shadow: 0 0 0 3px rgba(126, 214, 165, .25); }

.chat-body {
  padding: 30px 26px 16px;
  max-height: 60vh;
  overflow-y: auto;
  display: flex; flex-direction: column; gap: 18px;
  scroll-behavior: smooth;
}

.msg { display: flex; gap: 12px; max-width: 88%; }
.msg.bot { align-self: flex-start; }
.msg.user { align-self: flex-end; flex-direction: row-reverse; }

.msg-avatar { width: 38px; height: 38px; border-radius: 50%; background: var(--cream); flex-shrink: 0; object-fit: cover; }
.msg-bubble {
  padding: 13px 18px;
  border-radius: 18px;
  font-size: 15px;
  line-height: 1.7;
  white-space: pre-line;
}
.msg.bot .msg-bubble { background: var(--cream-2); color: var(--ink); border-top-left-radius: 6px; }
.msg.user .msg-bubble { background: var(--green-700); color: #fff; border-top-right-radius: 6px; }

.msg-options { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.option-btn {
  background: #fff;
  border: 1.5px solid var(--green-500);
  color: var(--green-700);
  font-family: var(--font-sans);
  font-size: 14px;
  padding: 9px 18px;
  border-radius: 999px;
  cursor: pointer;
  transition: all .2s ease;
}
.option-btn:hover { background: var(--green-700); color: #fff; }
.option-btn:disabled { opacity: .45; cursor: default; background: #fff; color: var(--ink-2); border-color: #CFC7B4; }

.typing { display: inline-flex; gap: 5px; align-items: center; padding: 14px 18px; background: var(--cream-2); border-radius: 18px; border-top-left-radius: 6px; }
.typing span { width: 7px; height: 7px; border-radius: 50%; background: var(--green-500); animation: blink 1.2s infinite; }
.typing span:nth-child(2) { animation-delay: .2s; }
.typing span:nth-child(3) { animation-delay: .4s; }
@keyframes blink { 0%, 80%, 100% { opacity: .25; } 40% { opacity: 1; } }

.result-card {
  background: linear-gradient(140deg, var(--green-900), var(--green-700));
  color: #F3EBDD;
  border-radius: 18px;
  padding: 24px 26px;
  border: 1px solid rgba(201, 162, 75, .35);
}
.result-card .rc-label { font-size: 12px; letter-spacing: .3em; color: #E4C97F; margin-bottom: 8px; }
.result-card h4 { font-family: var(--font-serif); font-size: 24px; margin-bottom: 10px; }
.result-card p { font-size: 14px; color: rgba(243, 235, 221, .85); margin-bottom: 12px; }
.result-card ul li { position: relative; padding-left: 20px; font-size: 14px; color: rgba(243, 235, 221, .9); margin-bottom: 6px; }
.result-card ul li::before { content: "✔"; position: absolute; left: 0; color: var(--gold-500); }

.product-card {
  background: var(--cream);
  border: 1.5px solid rgba(201, 162, 75, .45);
  border-radius: 18px;
  padding: 20px 22px;
}
.product-card .pc-tag { display: inline-block; font-size: 11px; background: var(--gold-500); color: #3A2E16; padding: 2px 10px; border-radius: 999px; font-weight: 700; margin-bottom: 10px; letter-spacing: .08em; }
.product-card h4 { font-family: var(--font-serif); font-size: 18px; color: var(--green-950); margin-bottom: 6px; }
.product-card p { font-size: 14px; color: var(--ink-2); }

.chat-foot { padding: 14px 26px 20px; border-top: 1px dashed rgba(51, 84, 63, .18); text-align: center; }
.chat-foot-tip { font-size: 12px; color: #A89F8E; }
.restart-btn { margin-top: 6px; }

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .hero-inner, .mascot-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-copy .hero-actions, .hero-copy .hero-points { justify-content: center; }
  .hero-art { order: -1; }
  .hero-art img { width: min(260px, 70%); }
  .steps, .value-grid, .culture-grid { grid-template-columns: 1fr; }
  .partner-grid, .contact-card { grid-template-columns: 1fr; }
  .section { padding: 72px 0; }
  .contact-card { padding: 44px 30px; }
  .story { padding: 34px 28px; }

  .nav-links {
    position: fixed; top: 72px; left: 0; right: 0;
    background: rgba(250, 246, 238, .98);
    flex-direction: column;
    gap: 0;
    padding: 12px 8%;
    border-bottom: 1px solid rgba(51, 84, 63, .1);
    transform: translateY(-120%);
    transition: transform .3s ease;
    box-shadow: var(--shadow);
  }
  .nav-links.open { transform: none; }
  .nav-links a { padding: 14px 0; border-bottom: 1px solid rgba(51, 84, 63, .06); }
  .nav-toggle { display: block; margin-left: auto; }
  .nav-cta { display: none; }
}

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

/* 用户头像 */
.msg-avatar-user {
  background: var(--green-700);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ===== 官方素材适配 ===== */
.hero-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.hero-brand .eyebrow { margin-bottom: 0; }
.brand-logo {
  width: 48px; height: 48px;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 4px 14px rgba(43, 42, 38, .12);
}
.hero-art img { height: min(430px, 62vh); width: auto; }
@media (max-width: 900px) {
  .hero-art img { height: min(280px, 46vh); }
}
.footer-brand-wrap { display: flex; align-items: center; gap: 12px; }
.brand-logo-sm {
  width: 46px; height: 46px;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 4px 14px rgba(43, 42, 38, .12);
}

/* ===== 园膳纪产品品牌条 ===== */
.product-brand {
  margin: 44px auto 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  background: #fff;
  border: 1px solid rgba(201, 162, 75, .35);
  border-radius: var(--radius);
  padding: 22px 40px;
  box-shadow: var(--shadow);
  max-width: 560px;
}
.pb-logo {
  width: 64px; height: 64px;
  border-radius: 14px;
  object-fit: cover;
  box-shadow: 0 4px 14px rgba(43, 42, 38, .1);
}
.pb-name { font-size: 13px; letter-spacing: .3em; color: var(--ink-2); }
.pb-slogan {
  font-family: var(--font-serif);
  font-size: 26px;
  color: var(--brown-700);
  font-weight: 700;
  letter-spacing: .12em;
  margin-top: 2px;
}
@media (max-width: 480px) {
  .product-brand { flex-direction: column; text-align: center; padding: 22px 20px; }
}

/* 体验页产品卡 slogan */
.pc-slogan {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 700;
  color: var(--brown-700);
  letter-spacing: .1em;
  margin: 2px 0 8px;
}

/* 辨证参考免责说明 */
.rc-note {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed rgba(243, 235, 221, .28);
  font-size: 12px;
  color: rgba(243, 235, 221, .68);
  line-height: 1.6;
}

/* ===== 园膳纪产品品牌区 ===== */
.section-yuanshanji {
  background: linear-gradient(180deg, #FBF6EC 0%, #F4EBDC 100%);
  border-top: 1px solid rgba(201, 162, 75, .22);
  border-bottom: 1px solid rgba(201, 162, 75, .22);
}
.yuanshanji-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.ysj-logo {
  width: 96px; height: 96px;
  border-radius: 22px;
  object-fit: cover;
  box-shadow: 0 10px 28px rgba(43, 42, 38, .14);
  margin: 0 auto 20px;
}
.yuanshanji-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(34px, 5vw, 52px);
  color: var(--brown-700);
  letter-spacing: .18em;
  font-weight: 700;
  margin: 6px 0 14px;
}
.ysj-quote {
  font-family: var(--font-serif);
  font-size: 16px;
  color: var(--gold-600);
  letter-spacing: .14em;
  margin-bottom: 18px;
}
.yuanshanji-head .lead { color: var(--ink-2); font-size: 16px; }

.ysj-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.ysj-card {
  background: #fff;
  border: 1px solid rgba(201, 162, 75, .35);
  border-radius: var(--radius);
  padding: 34px 30px;
  box-shadow: var(--shadow);
  transition: transform .25s ease, box-shadow .25s ease;
  position: relative;
}
.ysj-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.ysj-num {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 700;
  color: var(--gold-500);
  line-height: 1;
  display: block;
  margin-bottom: 18px;
}
.ysj-card h3 { font-family: var(--font-serif); font-size: 21px; color: var(--green-950); margin-bottom: 12px; }
.ysj-card p { color: var(--ink-2); font-size: 15px; }

.ysj-note {
  margin-top: 34px;
  text-align: center;
  font-size: 13px;
  color: #A89F8E;
}

@media (max-width: 900px) {
  .ysj-cards { grid-template-columns: 1fr; }
}

/* 园膳纪产品样品展示 */
.ysj-showcase { margin-top: 44px; }
.ysj-showcase img {
  width: 100%;
  border-radius: 22px;
  border: 1px solid rgba(201, 162, 75, .25);
  box-shadow: var(--shadow-lg);
  display: block;
}
.ysj-showcase-note {
  margin-top: 14px;
  text-align: center;
  font-size: 13px;
  color: #A89F8E;
  letter-spacing: .1em;
}

/* 资质条 */
.credential {
  margin-top: 36px;
  background: #fff;
  border: 1px solid rgba(201, 162, 75, .4);
  border-radius: var(--radius);
  padding: 26px 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  text-align: left;
  box-shadow: var(--shadow);
}
.credential-badge {
  background: linear-gradient(135deg, #D9B45F, var(--gold-500));
  color: #3A2E16;
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .06em;
  padding: 8px 22px;
  border-radius: 999px;
  white-space: nowrap;
}
.credential p { color: var(--ink-2); font-size: 14.5px; max-width: 52ch; }

/* 导航品牌图 */
.brand-mark-img {
  width: 42px; height: 42px;
  object-fit: contain;
  display: block;
}

/* 资质展示（含证书图） */
.credential {
  margin-top: 36px;
  background: #fff;
  border: 1px solid rgba(201, 162, 75, .4);
  border-radius: var(--radius);
  padding: 28px 34px;
  display: flex;
  align-items: center;
  gap: 28px;
  box-shadow: var(--shadow);
}
.credential-img {
  width: 260px;
  border-radius: 12px;
  border: 1px solid rgba(51, 84, 63, .12);
  box-shadow: 0 6px 18px rgba(43, 42, 38, .12);
  flex-shrink: 0;
}
.credential-info { flex: 1; }
@media (max-width: 760px) {
  .credential { flex-direction: column; text-align: center; }
  .credential-img { width: 100%; max-width: 320px; }
}

/* ── 官网首页：自测入口（2026-09-20 加）── */
.nav-hl { color: var(--brown-700) !important; font-weight: 700; }
.section-selftest { background: linear-gradient(180deg, #FBF7EF 0%, #F3EBDD 100%); }
.st-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 34px; }
.st-card { background: #fff; border: 1px solid #EFE6D8; border-radius: var(--radius); padding: 26px 22px; box-shadow: var(--shadow); }
.st-card span { font-family: var(--font-serif); font-size: 22px; color: var(--gold-600); }
.st-card h3 { font-family: var(--font-serif); font-size: 19px; color: var(--green-900); margin: 12px 0 8px; line-height: 1.5; }
.st-card p { font-size: 14px; color: var(--ink-2); line-height: 1.8; }
.st-cta { text-align: center; margin-top: 32px; }
.st-note { text-align: center; font-size: 12.5px; color: var(--ink-2); margin-top: 14px; }
.beian { color: inherit; text-decoration: none; border-bottom: 1px solid rgba(92,87,78,.35); }
@media (max-width: 820px) { .st-grid { grid-template-columns: 1fr; } }