/* ============================================================
   万普膳坊官网 · 视觉规范取自《万普膳坊 宣传册 2025年3月》
   主色：品牌橙（logo 山羊橙）；辅助：logo 文字蓝
   ============================================================ */
:root {
  --orange: #f08300;
  --orange-deep: #d96f00;
  --orange-soft: #fff4e8;
  --blue: #2b6be4;
  --ink: #23272e;
  --ink-2: #5b626c;
  --line: #ececec;
  --bg-grey: #f7f7f8;
  --white: #ffffff;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 22px; }

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 72px; }
.brand img { height: 46px; width: auto; }
.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav a { font-size: 15.5px; color: var(--ink); padding: 6px 0; border-bottom: 2px solid transparent; transition: .2s; }
.site-nav a:hover { color: var(--orange); border-bottom-color: var(--orange); }
.site-nav .nav-cta {
  background: var(--orange); color: #fff; padding: 9px 20px; border-radius: 999px; border-bottom: none;
}
.site-nav .nav-cta:hover { background: var(--orange-deep); color: #fff; }
.nav-toggle, .nav-burger { display: none; }

/* ===== 首屏 ===== */
.hero {
  position: relative; color: #fff;
  background: #1b1d22 url("assets/hero.jpg") center 38% / cover no-repeat;
}
.hero-mask {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(15,17,20,.82) 0%, rgba(15,17,20,.55) 46%, rgba(15,17,20,.25) 100%);
}
.hero-inner { position: relative; padding: 108px 22px 72px; }
.hero-kicker { font-size: 13px; letter-spacing: 3px; opacity: .85; margin-bottom: 18px; }
.hero h1 { font-size: clamp(38px, 6vw, 64px); line-height: 1.18; font-weight: 800; letter-spacing: 2px; }
.hero-sub { margin-top: 16px; font-size: clamp(17px, 2.4vw, 23px); font-weight: 600; color: #ffd9ad; }
.hero-desc { margin-top: 8px; font-size: 15.5px; opacity: .88; }
.hero-actions { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 14px; }
.btn { display: inline-block; padding: 12px 30px; border-radius: 999px; font-size: 15.5px; font-weight: 600; transition: .2s; }
.btn-primary { background: var(--orange); color: #fff; }
.btn-primary:hover { background: var(--orange-deep); }
.btn-ghost { border: 1.5px solid rgba(255,255,255,.65); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.14); }
.hero-stats {
  list-style: none; margin-top: 52px; display: flex; flex-wrap: wrap; gap: 12px 44px;
  border-top: 1px solid rgba(255,255,255,.25); padding-top: 26px;
}
.hero-stats li { min-width: 108px; }
.hero-stats strong { display: block; font-size: clamp(19px, 2.6vw, 26px); color: #ffb45c; }
.hero-stats span { font-size: 13px; opacity: .85; }

/* ===== 通用板块 ===== */
.section { padding: 84px 0; }
.section-grey { background: var(--bg-grey); }
.section-orange { background: linear-gradient(135deg, var(--orange) 0%, #ff9d1f 100%); color: #fff; }
.sec-head { display: flex; align-items: flex-end; gap: 18px; margin-bottom: 42px; }
.sec-no {
  font-size: 58px; font-weight: 800; line-height: .9; color: var(--orange);
  font-family: Georgia, "Times New Roman", serif;
}
.section-orange .sec-no { color: rgba(255,255,255,.65); }
.sec-head h2 { font-size: clamp(26px, 3.4vw, 34px); letter-spacing: 2px; }
.sec-en { font-size: 13px; letter-spacing: 2px; color: var(--ink-2); text-transform: uppercase; }
.section-orange .sec-en { color: rgba(255,255,255,.8); }
.business-lead { max-width: 900px; color: var(--ink-2); margin-bottom: 36px; }
.business-lead strong { color: var(--orange); }

/* ===== 01 公司简介 ===== */
.profile-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: start; }
.profile-text .lead { font-size: 17.5px; margin-bottom: 16px; }
.profile-text p { color: var(--ink-2); margin-bottom: 14px; }
.profile-text strong, .profile-text .lead strong { color: var(--orange); font-weight: 700; }
.chain { list-style: none; margin-top: 26px; display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.chain li {
  background: var(--orange-soft); border-radius: 10px; padding: 12px 8px; text-align: center;
  font-size: 12.5px; font-weight: 600; color: var(--orange-deep); line-height: 1.4;
}
.chain i {
  display: block; font-style: normal; font-size: 18px; font-weight: 800; margin-bottom: 4px;
  font-family: Georgia, serif;
}
.profile-pic { margin: 0; }
.profile-pic img { border-radius: 14px; box-shadow: 0 18px 44px rgba(35,39,46,.14); }
.profile-pic figcaption { margin-top: 10px; text-align: center; font-size: 13px; color: var(--ink-2); }

/* ===== 02 愿景 ===== */
.vision-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.vision-card {
  background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.35);
  border-radius: 16px; padding: 30px 26px;
}
.vision-card h3 { font-size: 15px; letter-spacing: 3px; opacity: .9; margin-bottom: 12px; }
.vision-big { font-size: clamp(21px, 2.6vw, 27px); font-weight: 800; margin-bottom: 10px; }
.vision-card p:not(.vision-big) { font-size: 14.5px; opacity: .92; }

/* ===== 03 业务 ===== */
.biz-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.biz-card {
  border: 1px solid var(--line); border-radius: 14px; padding: 28px 22px;
  transition: .25s; background: var(--white);
}
.biz-card:hover { transform: translateY(-4px); box-shadow: 0 14px 34px rgba(35,39,46,.1); border-color: transparent; }
.biz-card svg { width: 40px; height: 40px; fill: var(--orange); margin-bottom: 14px; }
.biz-card h3 { font-size: 19px; margin-bottom: 2px; }
.biz-en { font-size: 11px; letter-spacing: 1.5px; color: var(--ink-2); margin-bottom: 12px !important; }
.biz-card p:not(.biz-en) { font-size: 14px; color: var(--ink-2); }

/* ===== 04 产品 ===== */
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cat { margin: 0; border-radius: 12px; overflow: hidden; box-shadow: 0 8px 24px rgba(35,39,46,.08); }
.cat img { width: 100%; aspect-ratio: 4 / 2.9; object-fit: cover; transition: transform .4s; }
.cat:hover img { transform: scale(1.04); }
.series { margin-top: 42px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.series-card {
  background: var(--white); border-radius: 14px; padding: 28px 26px;
  border-top: 4px solid var(--orange); box-shadow: 0 8px 24px rgba(35,39,46,.07);
}
.series-card h3 { font-size: 19px; color: var(--orange-deep); margin-bottom: 10px; }
.series-card p { font-size: 14px; color: var(--ink-2); }
.series-items { margin-top: 12px; font-size: 13px !important; color: var(--ink) !important; font-weight: 600; }

/* ===== 05 优势 ===== */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 40px; }
.adv-card {
  background: var(--orange-soft); border-radius: 14px; padding: 30px 24px; text-align: center;
}
.adv-card h3 { font-size: 20px; color: var(--orange-deep); }
.adv-big { font-size: clamp(19px, 2.2vw, 24px); font-weight: 800; margin: 8px 0 6px; color: var(--ink); }
.adv-card p:not(.adv-big) { font-size: 13.5px; color: var(--ink-2); }
.goat {
  display: grid; grid-template-columns: 1.4fr .6fr; gap: 30px; align-items: center;
  background: var(--ink); color: #fff; border-radius: 16px; padding: 38px 40px;
}
.goat-text h3 { font-size: 22px; margin-bottom: 12px; }
.goat-text h3 span { font-size: 12px; letter-spacing: 2px; color: #ffb45c; margin-left: 10px; }
.goat-text p { font-size: 14.5px; color: rgba(255,255,255,.85); }
.goat-tags { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.goat-tags li {
  background: rgba(240,131,0,.18); border: 1px solid rgba(240,131,0,.5); color: #ffb45c;
  border-radius: 999px; padding: 9px 10px; text-align: center; font-size: 14px; font-weight: 600;
}

/* ===== 06 荣誉 ===== */
.honor-list { list-style: none; display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 26px; }
.honor-list li {
  background: var(--white); border: 1px solid var(--line); border-radius: 12px;
  padding: 18px 22px 18px 54px; position: relative; font-size: 15.5px;
}
.honor-list li::before {
  content: ""; position: absolute; left: 20px; top: 50%; transform: translateY(-50%);
  width: 20px; height: 20px;
  background: var(--orange);
  -webkit-mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 2 15 8l6 1-4.5 4.3L17.6 19 12 16l-5.6 3 1.1-5.7L3 9l6-1Z"/></svg>') center / contain no-repeat;
  mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 2 15 8l6 1-4.5 4.3L17.6 19 12 16l-5.6 3 1.1-5.7L3 9l6-1Z"/></svg>') center / contain no-repeat;
}
.honor-list strong { color: var(--orange-deep); }

/* ===== 联系我们 ===== */
.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.contact-info { font-style: normal; }
.contact-info p { margin-bottom: 14px; font-size: 16px; }
.contact-info strong { font-size: 19px; letter-spacing: 1px; }
.tel { font-size: clamp(24px, 3vw, 32px); font-weight: 800; color: #fff; border-bottom: 3px solid rgba(255,255,255,.6); }
.contact-pic { margin: 0; }
.contact-pic img { border-radius: 14px; box-shadow: 0 18px 44px rgba(0,0,0,.22); }

/* ===== 页脚 ===== */
.site-footer { background: #17191d; color: rgba(255,255,255,.8); padding: 40px 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.footer-brand { display: flex; align-items: center; gap: 16px; }
.footer-mascot { width: 44px; height: auto; }
.footer-name { font-size: 16px; font-weight: 600; color: #fff; }
.footer-slogan { font-size: 13px; opacity: .7; }
.footer-meta { text-align: right; font-size: 13px; }
.footer-meta a { border-bottom: 1px solid rgba(255,255,255,.35); }
.footer-meta a:hover { color: #ffb45c; }

/* ===== 响应式 ===== */
@media (max-width: 960px) {
  .profile-grid, .contact-grid, .goat { grid-template-columns: 1fr; }
  .vision-grid, .series { grid-template-columns: 1fr 1fr; }
  .biz-grid, .adv-grid { grid-template-columns: 1fr 1fr; }
  .chain { grid-template-columns: repeat(3, 1fr); }
  .cat-grid { grid-template-columns: 1fr 1fr; }
  .honor-list { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 56px 0; }

  /* 顶栏收紧 */
  .header-inner { height: 60px; gap: 12px; }
  .brand img { height: 36px; }
  .site-nav { top: 60px; }

  /* 首屏 */
  .hero-inner { padding: 64px 20px 44px; }
  .hero h1 { letter-spacing: 1px; }
  .hero-stats { gap: 14px 20px; padding-top: 20px; margin-top: 36px; }
  .hero-stats li { min-width: 86px; }
  .btn { padding: 11px 24px; font-size: 14.5px; }

  /* 标题区收紧 */
  .sec-head { gap: 12px; margin-bottom: 30px; }
  .sec-no { font-size: 40px; }

  /* 网格全部单列 */
  .vision-grid, .series, .biz-grid, .adv-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: 1fr; }
  .chain { grid-template-columns: repeat(2, 1fr); }
  .goat { padding: 28px 22px; }
  .goat-text h3 span { display: block; margin: 6px 0 0; }

  /* 业务卡片图标锁定尺寸（防止异常放大） */
  .biz-card svg { width: 40px; height: 40px; }

  /* 联系与页脚 */
  .contact-info p { font-size: 15px; }
  .contact-grid { gap: 30px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-meta { text-align: left; }

  /* 移动端导航 */
  .nav-burger { display: block; width: 40px; height: 40px; position: relative; cursor: pointer; }
  .nav-burger span, .nav-burger span::before, .nav-burger span::after {
    content: ""; position: absolute; left: 9px; width: 22px; height: 2.5px;
    background: var(--ink); border-radius: 2px; transition: .25s;
  }
  .nav-burger span { top: 19px; }
  .nav-burger span::before { top: -7px; }
  .nav-burger span::after { top: 7px; }
  .site-nav {
    display: none; position: absolute; top: 72px; left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: flex-start; gap: 0;
    padding: 10px 22px 18px; border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 30px rgba(0,0,0,.08);
  }
  .site-nav a { padding: 12px 0; width: 100%; border-bottom: 1px solid var(--line); }
  .site-nav .nav-cta { margin-top: 12px; text-align: center; border-bottom: none; }
  .nav-toggle:checked ~ .site-nav { display: flex; }
  .nav-toggle:checked ~ .nav-burger span { background: transparent; }
  .nav-toggle:checked ~ .nav-burger span::before { transform: rotate(45deg); top: 0; }
  .nav-toggle:checked ~ .nav-burger span::after { transform: rotate(-45deg); top: 0; }
}