/* ============================================================
   恒屹电力 HENGYI POWER — UPS/电力保障设备企业官网
   主题：深蓝稳重 · 不间断守护
   主色：#0B1A2E 深蓝 ｜ #C9A84C 金色 ｜ 白 ｜ 银灰 #8A94A6
   技术：原生CSS + FontAwesome6 + Swiper + AOS + jQuery
   字体：Noto Sans SC Variable（思源黑体）+ JetBrains Mono Variable
   ============================================================ */

/* 加载网络字体（unicode-range 子集按需下载，失败自动回退系统字体） */



/* ---------- 1. 变量与重置 ---------- */
:root {
  --deep: #0B1A2E;
  --deep-2: #10223A;
  --deep-3: #162B47;
  --deep-4: #1E3554;
  --gold: #C9A84C;
  --gold-light: #E3C77C;
  --gold-dark: #A8863A;
  --white: #FFFFFF;
  --silver: #8A94A6;
  --text: #D6DEEA;
  --text-dim: #9AA7BA;
  --line: rgba(255,255,255,0.10);
  --line-gold: rgba(201,168,76,0.35);
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-card: 0 10px 30px rgba(0,0,0,0.25);
  --shadow-gold: 0 12px 32px rgba(201,168,76,0.22);
  --font: "Noto Sans SC Variable", "Noto Sans SC", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono Variable", "JetBrains Mono", "SF Mono", "Consolas", "Roboto Mono", monospace;
  --transition: all .3s cubic-bezier(.4,0,.2,1);
  --container: 1280px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--deep);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* 数字用等宽等距 */
.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

section { position: relative; }

/* ---------- 2. 通用区块标题 ---------- */
.sec { padding: 92px 0; }
.sec--alt { background: linear-gradient(180deg, var(--deep) 0%, #0d1e36 100%); }
.sec--cardbg { background: #0D1E36; }

.sec-head { text-align: center; margin-bottom: 52px; }
.sec-head__en {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .42em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 10px;
}
.sec-head__title { font-size: 32px; font-weight: 700; color: var(--white); letter-spacing: .04em; }
.sec-head__bar {
  width: 56px; height: 2px; margin: 18px auto 0;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.sec-head__desc { margin-top: 16px; color: var(--text-dim); font-size: 15px; }
.sec-head--left { text-align: left; }
.sec-head--left .sec-head__bar { margin-left: 0; }

/* ---------- 3. 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 30px; font-size: 15px; font-weight: 600;
  border-radius: var(--radius); cursor: pointer;
  transition: var(--transition); letter-spacing: .03em; white-space: nowrap;
}
.btn--gold { background: linear-gradient(135deg, var(--gold-light), var(--gold)); color: var(--deep); border: 1px solid var(--gold-light); }
.btn--gold:hover { transform: translateY(-2px); box-shadow: var(--shadow-gold); color: var(--deep); }
.btn--outline { background: transparent; color: var(--gold); border: 1px solid var(--gold); }
.btn--outline:hover { background: rgba(201,168,76,.12); transform: translateY(-2px); color: var(--gold-light); }
.btn--ghost { background: rgba(255,255,255,.08); color: var(--white); border: 1px solid rgba(255,255,255,.25); }
.btn--ghost:hover { background: rgba(255,255,255,.16); color: var(--white); }
.btn--sm { padding: 8px 20px; font-size: 13px; }
.btn--lg { padding: 15px 42px; font-size: 16px; }
.btn--block { width: 100%; }

/* ---------- 4. 头部导航 ---------- */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(11,26,46,.78);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201,168,76,.14);
  transition: var(--transition);
}
.header.is-scrolled { background: rgba(11,26,46,.97); box-shadow: 0 6px 24px rgba(0,0,0,.35); }
.header__inner { max-width: var(--container); margin: 0 auto; padding: 0 24px; height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.header__logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.header__logo-mark {
  width: 42px; height: 42px; border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--gold-light), var(--gold-dark));
  display: flex; align-items: center; justify-content: center;
  color: var(--deep); font-size: 20px;
  box-shadow: 0 4px 14px rgba(201,168,76,.35);
}
.header__logo-name { font-size: 20px; font-weight: 800; color: var(--white); letter-spacing: .1em; line-height: 1.2; }
.header__logo-name em { font-style: normal; color: var(--gold); }
.header__logo-sub { display: block; font-family: var(--font-mono); font-size: 10px; letter-spacing: .3em; color: var(--silver); text-transform: uppercase; margin-top: 2px; }

.header__nav { display: flex; align-items: center; gap: 4px; }
.header__nav-link {
  position: relative; display: flex; align-items: center; gap: 5px;
  padding: 10px 15px; font-size: 15px; color: var(--text); font-weight: 500;
  border-radius: var(--radius-sm);
}
.header__nav-link:hover, .header__nav-link.active { color: var(--gold-light); }
.header__nav-link.active::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 2px; height: 2px;
  background: linear-gradient(90deg, var(--gold), transparent);
}
.header__nav-item { position: relative; }
.header__nav-item:hover .header__dropdown { opacity: 1; visibility: visible; transform: translateY(0); }

.header__dropdown {
  position: absolute; top: 100%; left: 0; z-index: 50; min-width: 220px; padding: 10px 0;
  background: rgba(13,30,54,.98); border: 1px solid var(--line-gold); border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: var(--transition);
}
.header__dropdown a {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 10px 20px; font-size: 14px; color: var(--text);
  border-left: 2px solid transparent;
}
.header__dropdown a:hover { color: var(--gold-light); background: rgba(201,168,76,.07); border-left-color: var(--gold); }
.header__dropdown .dd-power { font-family: var(--font-mono); font-size: 11px; color: var(--gold); opacity: .85; white-space: nowrap; }

.header__actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.header__cta { padding: 9px 22px; border-radius: var(--radius); font-size: 14px; font-weight: 600; }

.hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.hamburger span { width: 24px; height: 2px; background: var(--white); border-radius: 2px; transition: var(--transition); }
.hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端侧滑菜单 */
.mobile-nav {
  position: fixed; top: 0; right: -320px; width: 300px; height: 100%; z-index: 110;
  background: #0D1E36; border-left: 1px solid var(--line-gold);
  transition: right .35s cubic-bezier(.4,0,.2,1);
  overflow-y: auto; padding: 24px 0;
}
.mobile-nav.is-open { right: 0; }
.mobile-nav__overlay { position: fixed; inset: 0; background: rgba(0,0,0,.55); z-index: 105; opacity: 0; visibility: hidden; transition: var(--transition); }
.mobile-nav__overlay.is-open { opacity: 1; visibility: visible; }
.mobile-nav__link { display: flex; align-items: center; justify-content: space-between; padding: 14px 22px; color: var(--text); font-size: 16px; border-bottom: 1px solid var(--line); }
.mobile-nav__sub { display: none; background: rgba(0,0,0,.18); padding: 6px 0; }
.mobile-nav__sub.is-open { display: block; }
.mobile-nav__sub a { display: block; padding: 11px 32px; color: var(--text-dim); font-size: 14px; }
.mobile-nav__sub a:hover { color: var(--gold-light); }

/* ---------- 5. 首页 Banner 轮播 ---------- */
.hero { height: 92vh; min-height: 620px; max-height: 900px; }
.hero-swiper { width: 100%; height: 100%; }
.hero__slide { position: relative; width: 100%; height: 100%; background-size: cover; background-position: center; }
.hero__overlay {
  position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(90deg, rgba(7,16,30,.88) 0%, rgba(11,26,46,.55) 55%, rgba(11,26,46,.25) 100%);
}
.hero__overlay::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 180px;
  background: linear-gradient(180deg, transparent, var(--deep));
}
.hero__content { position: absolute; inset: 0; z-index: 3; display: flex; align-items: center; }
.hero__content-inner { max-width: var(--container); margin: 0 auto; padding: 0 24px; width: 100%; }
.hero__tag {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .35em; text-transform: uppercase;
  color: var(--gold-light); border: 1px solid var(--line-gold); border-radius: 40px;
  padding: 7px 18px; margin-bottom: 26px;
}
.hero__tag::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--gold); animation: pulse 1.6s infinite; }
@keyframes pulse { 0%{ box-shadow: 0 0 0 0 rgba(201,168,76,.5);} 70%{ box-shadow: 0 0 0 10px rgba(201,168,76,0);} 100%{ box-shadow: 0 0 0 0 rgba(201,168,76,0);} }

.hero__title { font-size: clamp(34px, 4.4vw, 58px); font-weight: 800; color: var(--white); line-height: 1.25; letter-spacing: .03em; margin-bottom: 22px;
  background: linear-gradient(120deg, var(--gold-light) 0%, #fff 55%, var(--gold) 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero__title .hl { color: var(--gold-light); -webkit-text-fill-color: var(--gold-light); }
.hero__subtitle { font-size: clamp(15px, 1.4vw, 18px); color: var(--text); max-width: 640px; margin-bottom: 38px; line-height: 1.8; }
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Swiper 分页器/箭头 */
.hero-pagination { position: absolute !important; bottom: 40px !important; left: 0; right: 0; z-index: 5; }
.hero-pagination .swiper-pagination-bullet { width: 34px; height: 3px; border-radius: 2px; background: rgba(255,255,255,.35); opacity: 1; transition: var(--transition); }
.hero-pagination .swiper-pagination-bullet-active { background: var(--gold); width: 50px; }
.hero-nav { position: absolute; top: 50%; transform: translateY(-50%); z-index: 6; width: 48px; height: 48px; border-radius: 50%; border: 1px solid rgba(255,255,255,.3); color: var(--white); font-size: 16px; display: flex; align-items: center; justify-content: center; transition: var(--transition); background: rgba(0,0,0,.2); }
.hero-nav:hover { border-color: var(--gold); color: var(--gold); }
.hero-nav--prev { left: 28px; }
.hero-nav--next { right: 28px; }

/* 标题渐显动画（Swiper 内） */
.hero__content-inner { opacity: 0; }
.hero__slide.is-active .hero__content-inner { animation: heroIn .9s .1s cubic-bezier(.4,0,.2,1) forwards; }
@keyframes heroIn { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: translateY(0); } }

/* ---------- 6. 信任·数据 ---------- */
.stats { background: linear-gradient(180deg, var(--deep) 0%, #0d1e36 100%); border-top: 1px solid var(--line); }
.stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stats__item { text-align: center; padding: 54px 20px; position: relative; }
.stats__item + .stats__item::before { content: ""; position: absolute; left: 0; top: 30%; bottom: 30%; width: 1px; background: var(--line-gold); }
.stats__num { font-family: var(--font-mono); font-size: clamp(36px, 3.6vw, 52px); font-weight: 700; color: var(--gold-light); line-height: 1; }
.stats__num sup { font-size: .55em; color: var(--gold); margin-left: 2px; }
.stats__label { margin-top: 14px; color: var(--text-dim); font-size: 14px; letter-spacing: .12em; }

/* ---------- 7. 核心产品 · 六列网格 ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.prod-more { margin-top: 42px; text-align: center; }
.prod-more .btn--lg { letter-spacing: .05em; }
.prod-card {
  position: relative; background: linear-gradient(160deg, var(--deep-3), var(--deep-2));
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 38px 30px 34px; text-align: center; overflow: hidden;
  transition: var(--transition); cursor: pointer;
}
.prod-card::before {
  content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 0; height: 2px; background: linear-gradient(90deg, transparent, var(--gold), transparent);
  transition: width .45s cubic-bezier(.4,0,.2,1);
}
.prod-card:hover { transform: translateY(-8px); border-color: var(--line-gold); box-shadow: var(--shadow-gold); }
.prod-card:hover::before { width: 70%; }
.prod-card:hover .prod-card__img { transform: scale(1.08); }
.prod-card__img { width: 108px; height: 108px; margin: 0 auto 22px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line-gold); transition: var(--transition); }
.prod-card__img img { width: 100%; height: 100%; object-fit: cover; }
.prod-card__name { font-size: 19px; font-weight: 700; color: var(--white); }
.prod-card__en { font-family: var(--font-mono); font-size: 11px; letter-spacing: .2em; color: var(--silver); text-transform: uppercase; margin-top: 6px; }
.prod-card__power { margin-top: 16px; display: inline-block; font-family: var(--font-mono); font-size: 14px; color: var(--gold); border: 1px solid var(--line-gold); border-radius: 40px; padding: 5px 16px; }
.prod-card__arrow { margin-top: 22px; width: 34px; height: 34px; margin-left: auto; margin-right: auto; border-radius: 50%; border: 1px solid var(--line-gold); display: flex; align-items: center; justify-content: center; color: var(--gold); font-size: 12px; transition: var(--transition); }
.prod-card:hover .prod-card__arrow { background: var(--gold); color: var(--deep); }

/* ---------- 8. 解决方案 · 两列卡片网格 ---------- */
.sol-scroll { position: relative; }
.sol-track {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
  padding: 10px 4px 26px;
}
.sol-card { flex: none; position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); transition: var(--transition); }
.sol-card:hover { transform: translateY(-6px); border-color: var(--line-gold); box-shadow: var(--shadow-card); }
.sol-card__img { height: 210px; position: relative; overflow: hidden; }
.sol-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.sol-card:hover .sol-card__img img { transform: scale(1.08); }
.sol-card__img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(11,26,46,.92)); }
.sol-card__body { padding: 24px; background: var(--deep-2); }
.sol-card__name { font-size: 17px; font-weight: 700; color: var(--white); }
.sol-card__level { display: inline-flex; margin-top: 12px; font-family: var(--font-mono); font-size: 12px; color: var(--gold); border: 1px solid var(--line-gold); border-radius: 40px; padding: 3px 12px; }
.sol-card__more { margin-top: 16px; display: inline-flex; align-items: center; gap: 6px; color: var(--silver); font-size: 13px; }
.sol-card__more:hover { color: var(--gold-light); }

/* ---------- 9. 主推产品 · 横向对比 ---------- */
.featured { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; align-items: start; }
.feat-card { background: linear-gradient(160deg, var(--deep-3), var(--deep-2)); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: var(--transition); }
.feat-card:hover { transform: translateY(-6px); border-color: var(--line-gold); box-shadow: var(--shadow-card); }
.feat-card--main, .featured .feat-card:nth-child(2) { transform: translateY(-22px); border-color: var(--line-gold); box-shadow: 0 18px 44px rgba(0,0,0,.4); position: relative; }
.feat-card--main:hover, .featured .feat-card:nth-child(2):hover { transform: translateY(-28px); }
.feat-card--main::before, .featured .feat-card:nth-child(2)::before { content: "旗舰推荐"; position: absolute; top: 16px; right: -36px; z-index: 3; background: linear-gradient(135deg, var(--gold-light), var(--gold)); color: var(--deep); font-size: 12px; font-weight: 700; padding: 5px 42px; transform: rotate(45deg); letter-spacing: .1em; box-shadow: 0 4px 12px rgba(0,0,0,.3); }
.feat-card__img { height: 220px; overflow: hidden; position: relative; }
.feat-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.feat-card:hover .feat-card__img img { transform: scale(1.08); }
.feat-card__body { padding: 26px 26px 28px; }
.feat-card__name { font-size: 17px; font-weight: 700; color: var(--white); line-height: 1.4; }
.feat-card__specs { margin-top: 16px; display: grid; gap: 10px; }
.feat-card__spec { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-dim); }
.feat-card__spec i { width: 20px; color: var(--gold); font-size: 13px; text-align: center; }
.feat-card__spec b { font-family: var(--font-mono); color: var(--white); font-weight: 600; }
.feat-card__more { margin-top: 20px; display: inline-flex; align-items: center; gap: 6px; color: var(--gold); font-size: 13px; font-weight: 600; }
.feat-card__more:hover { color: var(--gold-light); gap: 10px; }

/* ---------- 9b. 全系列产品 · 产品总览网格 ---------- */
.allprod-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.allprod-card { display: flex; flex-direction: column; background: linear-gradient(160deg, var(--deep-3), var(--deep-2)); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: var(--transition); }
.allprod-card:hover { transform: translateY(-6px); border-color: var(--line-gold); box-shadow: var(--shadow-card); }
.allprod-card__img { height: 200px; overflow: hidden; position: relative; }
.allprod-card__img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(11,26,46,.55)); }
.allprod-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.allprod-card:hover .allprod-card__img img { transform: scale(1.06); }
.allprod-card__body { padding: 20px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.allprod-card__name { font-size: 17px; font-weight: 700; color: var(--white); line-height: 1.45; }
.allprod-card__meta { margin-top: 14px; display: grid; gap: 8px; }
.allprod-card__meta span { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-dim); }
.allprod-card__meta i { width: 14px; text-align: center; color: var(--gold); }
.allprod-card__meta b { font-family: var(--font-mono); font-weight: 500; color: var(--silver); }
.allprod-card__more { margin-top: auto; padding-top: 16px; display: inline-flex; align-items: center; gap: 6px; color: var(--gold); font-size: 14px; font-weight: 600; transition: var(--transition); }
.allprod-card:hover .allprod-card__more { gap: 10px; color: var(--gold-light); }

/* ---------- 10. 工程案例 · 实景网格 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.case-card { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); cursor: pointer; height: 320px; }
.case-card__img { position: absolute; inset: 0; }
.case-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.case-card:hover .case-card__img img { transform: scale(1.07); }
.case-card__mask { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 30%, rgba(7,16,30,.93)); transition: var(--transition); }
.case-card:hover .case-card__mask { background: linear-gradient(180deg, rgba(11,26,46,.2) 0%, rgba(7,16,30,.96)); }
.case-card__body { position: absolute; left: 0; right: 0; bottom: 0; padding: 24px 26px; z-index: 2; }
.case-card__tag { display: inline-block; font-size: 12px; color: var(--deep); background: linear-gradient(135deg, var(--gold-light), var(--gold)); border-radius: 3px; padding: 3px 12px; font-weight: 700; margin-bottom: 12px; letter-spacing: .05em; }
.case-card__name { font-size: 18px; font-weight: 700; color: var(--white); }
.case-card__desc { margin-top: 8px; font-size: 13px; color: var(--text-dim); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.case-card__arrow { position: absolute; right: 24px; top: 50%; transform: translateY(-50%); width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--gold); color: var(--gold); display: flex; align-items: center; justify-content: center; opacity: 0; transition: var(--transition); z-index: 3; }
.case-card:hover .case-card__arrow { opacity: 1; }
/* 首页工程案例：仅 1 张，通栏展示并压缩高度（不影响案例列表页） */
.case-grid .case-card { grid-column: 1 / -1; height: 260px; }

/* ---------- 11. 技术 · 保障体系 ---------- */
.tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.tech-card { text-align: center; padding: 34px 26px; position: relative; transition: var(--transition); }
.tech-card + .tech-card { border-left: 1px solid var(--line-gold); }
.tech-card:hover { background: rgba(201,168,76,.04); }
.tech-card__icon {
  width: 64px; height: 64px; margin: 0 auto 22px; border-radius: 50%;
  border: 1px solid var(--line-gold); display: flex; align-items: center; justify-content: center;
  color: var(--gold); font-size: 24px; transition: var(--transition);
}
.tech-card:hover .tech-card__icon { background: linear-gradient(135deg, var(--gold-light), var(--gold)); color: var(--deep); box-shadow: var(--shadow-gold); }
.tech-card__name { font-size: 18px; font-weight: 700; color: var(--white); }
.tech-card__desc { margin-top: 10px; font-size: 14px; color: var(--text-dim); line-height: 1.7; }
.tech-card__data { margin-top: 16px; font-family: var(--font-mono); font-size: 14px; color: var(--gold-light); border-top: 1px dashed var(--line-gold); padding-top: 14px; }

/* ---------- 12. 合作伙伴 · Logo墙 ---------- */
.partner { overflow: hidden; }
.partner__track { display: flex; align-items: center; width: max-content; animation: marquee 38s linear infinite; }
.partner:hover .partner__track { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.partner__logo {
  display: flex; align-items: center; justify-content: center;
  min-width: 190px; height: 84px; padding: 0 30px; margin: 0 14px;
  border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,.02);
  transition: var(--transition);
}
.partner__logo img { display: block; max-width: 150px; max-height: 44px; object-fit: contain; opacity: .82; transition: var(--transition); filter: drop-shadow(0 2px 6px rgba(0,0,0,.35)); }
.partner__logo:hover { border-color: var(--line-gold); background: rgba(201,168,76,.06); }
.partner__logo:hover img { opacity: 1; }

/* ---------- 13. 新闻 · 行业动态 ---------- */
.news-layout { display: grid; grid-template-columns: 2fr 1fr; gap: 26px; align-items: start; }
.news-main { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); min-height: 320px; display: flex; flex-direction: column; }
.news-main__img { height: 220px; overflow: hidden; }
.news-main__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.news-main:hover .news-main__img img { transform: scale(1.06); }
.news-main__body { padding: 24px 26px; background: var(--deep-2); flex: 1; }
.news-main__tag { font-family: var(--font-mono); font-size: 11px; letter-spacing: .2em; color: var(--gold); text-transform: uppercase; }
.news-main__name { margin-top: 8px; font-size: 20px; font-weight: 700; color: var(--white); line-height: 1.5; }
.news-main__name:hover { color: var(--gold-light); }
.news-main__desc { margin-top: 10px; font-size: 14px; color: var(--text-dim); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-main__meta { margin-top: 16px; display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--silver); }
.news-main__meta i { color: var(--gold); font-size: 12px; }

.news-list { display: grid; gap: 14px; }
.news-item { display: flex; align-items: flex-start; gap: 14px; padding: 16px 18px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--deep-2); transition: var(--transition); }
.news-item:hover { border-color: var(--line-gold); transform: translateX(4px); }
.news-item__date { flex-shrink: 0; width: 52px; text-align: center; border-right: 1px solid var(--line-gold); padding-right: 14px; }
.news-item__date b { display: block; font-family: var(--font-mono); font-size: 20px; color: var(--gold-light); line-height: 1; }
.news-item__date span { font-size: 11px; color: var(--silver); }
.news-item__name { font-size: 15px; color: var(--text); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-item__name:hover { color: var(--gold-light); }

/* ---------- 14. CTA ---------- */
.cta { background: radial-gradient(ellipse at center, #1a2f4d 0%, #0a1728 72%); padding: 0; }
.cta__box {
  background: linear-gradient(135deg, var(--gold-light), var(--gold) 55%, var(--gold-dark));
  border-radius: var(--radius); padding: 56px 60px; text-align: center;
  border: 2px solid var(--deep-4); box-shadow: 0 24px 60px rgba(201,168,76,.25);
  position: relative; overflow: hidden;
}
.cta__box::before { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(90deg, rgba(11,26,46,.05) 0 1px, transparent 1px 48px); pointer-events: none; }
.cta__title { font-size: clamp(24px, 2.6vw, 34px); font-weight: 800; color: var(--deep); letter-spacing: .05em; }
.cta__sub { margin-top: 12px; color: rgba(11,26,46,.75); font-size: 15px; letter-spacing: .15em; }
.cta__actions { margin-top: 30px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta__btn { background: var(--deep); color: var(--gold-light); border: 1px solid var(--deep); padding: 13px 38px; }
.cta__btn:hover { background: #12304f; transform: translateY(-2px); box-shadow: 0 12px 28px rgba(11,26,46,.35); color: var(--gold-light); }

/* ---------- 15. 底部 ---------- */
.footer { background: #081420; border-top: 1px solid var(--line-gold); }
.footer__grid { display: grid; grid-template-columns: 1.3fr 1fr 1.1fr 1.1fr; gap: 44px; padding: 70px 0 50px; }
.footer__brand { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.footer__col-title { font-size: 16px; font-weight: 700; color: var(--white); letter-spacing: .08em; margin-bottom: 22px; position: relative; padding-bottom: 12px; }
.footer__col-title::after { content: ""; position: absolute; left: 0; bottom: 0; width: 32px; height: 2px; background: var(--gold); }
.footer__desc { font-size: 14px; color: var(--text-dim); line-height: 1.8; }
.footer__slogan { margin-top: 16px; font-family: var(--font-mono); font-size: 13px; letter-spacing: .12em; color: var(--gold); }
.footer__links { display: grid; gap: 12px; }
.footer__links a { display: flex; align-items: center; gap: 8px; color: var(--text-dim); font-size: 14px; }
.footer__links a i { font-size: 10px; color: var(--gold); }
.footer__links a:hover { color: var(--gold-light); transform: translateX(4px); }
.footer__contact { display: grid; gap: 16px; }
.footer__contact-item { display: flex; align-items: flex-start; gap: 12px; font-size: 14px; color: var(--text-dim); }
.footer__contact-item i { color: var(--gold); margin-top: 3px; width: 16px; text-align: center; }
.footer__qr { display: flex; gap: 18px; align-items: flex-start; }
.footer__qr-box { width: 108px; height: 108px; border: 1px dashed var(--line-gold); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 6px; color: var(--silver); font-size: 30px; background: rgba(255,255,255,.02); }
.footer__qr-box span { font-size: 11px; color: var(--silver); }
.footer__hotline { margin-top: 14px; font-family: var(--font-mono); font-size: 20px; color: var(--gold-light); letter-spacing: .04em; }

.friend-links { border-top: 1px solid var(--line); padding: 20px 0; display: flex; align-items: center; flex-wrap: wrap; gap: 8px 20px; }
.friend-links__label { font-size: 13px; color: var(--silver); flex-shrink: 0; }
.friend-links a { font-size: 13px; color: var(--text-dim); }
.friend-links a:hover { color: var(--gold-light); }

.footer__bottom { border-top: 1px solid var(--line); }
.footer__bottom-inner { max-width: var(--container); margin: 0 auto; padding: 22px 24px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 13px; color: var(--silver); }
.footer__bottom-inner a { color: var(--silver); }
.footer__bottom-inner a:hover { color: var(--gold-light); }

/* ---------- 16. 浮动元素 ---------- */
.back-top {
  position: fixed; right: 26px; bottom: 96px; z-index: 90;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--deep-3); border: 1px solid var(--line-gold); color: var(--gold);
  font-size: 16px; display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transform: translateY(12px); transition: var(--transition);
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--gold); color: var(--deep); }

.kefu {
  position: fixed; right: 26px; bottom: 26px; z-index: 90;
  width: 56px; height: 56px; border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  color: var(--deep); font-size: 24px; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(201,168,76,.4); transition: var(--transition);
}
.kefu:hover { transform: translateY(-4px) scale(1.04); box-shadow: 0 14px 32px rgba(201,168,76,.5); color: var(--deep); }
.kefu__ring { position: absolute; inset: -6px; border-radius: 50%; border: 2px solid rgba(201,168,76,.5); animation: pulse 1.8s infinite; }

/* ---------- 17. 内页通用 ---------- */
.page-banner {
  position: relative; height: 320px; margin-top: 76px; overflow: hidden;
  background: linear-gradient(135deg, #0c1d36, #13304f);
  display: flex; align-items: center;
}
.page-banner::before { content: ""; position: absolute; inset: 0; background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="0 0 200 200"><path d="M0 120 L200 40" stroke="%23C9A84C" stroke-opacity="0.06" stroke-width="40" fill="none"/><path d="M0 170 L200 90" stroke="%23C9A84C" stroke-opacity="0.04" stroke-width="30" fill="none"/></svg>'); }
.page-banner__inner { position: relative; z-index: 2; width: 100%; }
.page-banner__en { font-family: var(--font-mono); font-size: 13px; letter-spacing: .4em; text-transform: uppercase; color: var(--gold); }
.page-banner__title { font-size: 34px; font-weight: 800; color: var(--white); margin-top: 10px; letter-spacing: .04em; }
.page-banner__desc { margin-top: 12px; color: var(--text-dim); font-size: 15px; max-width: 620px; }

.crumbs { border-bottom: 1px solid var(--line); background: #0d1e36; }
.crumbs__inner { max-width: var(--container); margin: 0 auto; padding: 14px 24px; font-size: 13px; color: var(--silver); display: flex; align-items: center; flex-wrap: wrap; gap: 6px; }
.crumbs__inner a:hover { color: var(--gold-light); }
.crumbs__inner i { font-size: 10px; color: var(--gold); }
.crumbs__inner .cur { color: var(--gold-light); }

/* 内页布局 */
.layout { max-width: var(--container); margin: 0 auto; padding: 60px 24px 90px; display: grid; grid-template-columns: 260px 1fr; gap: 40px; align-items: start; }
.layout--full { display: block; }
.sidebar { position: sticky; top: 100px; background: linear-gradient(160deg, var(--deep-3), var(--deep-2)); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.sidebar__title { background: linear-gradient(135deg, var(--gold-light), var(--gold)); color: var(--deep); padding: 18px 22px; font-size: 17px; font-weight: 800; letter-spacing: .05em; }
.sidebar__title small { display: block; font-family: var(--font-mono); font-size: 10px; font-weight: 400; letter-spacing: .25em; margin-top: 3px; opacity: .7; }
.sidebar__title-arrow { display: none; }
.sidebar__nav a { display: flex; align-items: center; justify-content: space-between; padding: 13px 22px; font-size: 14px; color: var(--text); border-left: 3px solid transparent; border-bottom: 1px solid var(--line); }
.sidebar__nav a i { font-size: 11px; color: var(--silver); }
.sidebar__nav a:hover { color: var(--gold-light); background: rgba(201,168,76,.05); border-left-color: var(--gold); }
.sidebar__nav a.active { color: var(--gold-light); border-left-color: var(--gold); background: rgba(201,168,76,.07); font-weight: 600; }
.sidebar__phone { padding: 22px; text-align: center; border-top: 1px solid var(--line); }
.sidebar__phone .num { font-family: var(--font-mono); font-size: 18px; color: var(--gold-light); letter-spacing: .03em; }
.sidebar__phone span { display: block; font-size: 12px; color: var(--silver); margin-bottom: 8px; letter-spacing: .15em; }

.page-main { min-width: 0; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 34px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.page-head__title { font-size: 24px; font-weight: 700; color: var(--white); }
.page-head__desc { margin-top: 6px; font-size: 14px; color: var(--text-dim); }
.page-head__more { flex-shrink: 0; color: var(--gold); font-size: 13px; }
.page-head__more:hover { color: var(--gold-light); }

/* 列表网格（内页） */
.list-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.list-grid--2 { grid-template-columns: repeat(2, 1fr); }
.list-card { background: linear-gradient(160deg, var(--deep-3), var(--deep-2)); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: var(--transition); }
.list-card:hover { transform: translateY(-6px); border-color: var(--line-gold); box-shadow: var(--shadow-card); }
.list-card__img { height: 190px; overflow: hidden; position: relative; }
.list-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.list-card:hover .list-card__img img { transform: scale(1.08); }
.list-card__img .tag { position: absolute; top: 12px; left: 12px; z-index: 2; background: linear-gradient(135deg, var(--gold-light), var(--gold)); color: var(--deep); font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 3px; }
.list-card__body { padding: 20px 22px 22px; }
.list-card__title { font-size: 16px; font-weight: 700; color: var(--white); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.list-card__title:hover { color: var(--gold-light); }
.list-card__desc { margin-top: 10px; font-size: 13px; color: var(--text-dim); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; line-height: 1.7; }
.list-card__meta { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; font-size: 12px; color: var(--silver); }
.list-card__meta .specs { display: flex; gap: 12px; flex-wrap: wrap; color: var(--gold); font-family: var(--font-mono); }

/* 新闻列表（内页） */
.news-list-page { display: grid; gap: 18px; }
.news-list-page__item { display: flex; gap: 22px; background: linear-gradient(160deg, var(--deep-3), var(--deep-2)); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; transition: var(--transition); }
.news-list-page__item:hover { border-color: var(--line-gold); transform: translateY(-4px); box-shadow: var(--shadow-card); }
.news-list-page__img { flex-shrink: 0; width: 240px; height: 150px; border-radius: var(--radius-sm); overflow: hidden; }
.news-list-page__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.news-list-page__item:hover .news-list-page__img img { transform: scale(1.06); }
.news-list-page__body { flex: 1; min-width: 0; }
.news-list-page__title { font-size: 17px; font-weight: 700; color: var(--white); line-height: 1.5; }
.news-list-page__title:hover { color: var(--gold-light); }
.news-list-page__desc { margin-top: 10px; font-size: 13px; color: var(--text-dim); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-list-page__meta { margin-top: 14px; display: flex; align-items: center; gap: 18px; font-size: 13px; color: var(--silver); }
.news-list-page__meta i { color: var(--gold); font-size: 12px; }

/* 分页 */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 46px; flex-wrap: wrap; }
.pagination a, .pagination span {
  min-width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--text-dim);
  font-size: 14px; padding: 0 12px; transition: var(--transition);
}
.pagination a:hover { border-color: var(--line-gold); color: var(--gold-light); }
.pagination .cur { background: linear-gradient(135deg, var(--gold-light), var(--gold)); border-color: var(--gold); color: var(--deep); font-weight: 700; }
.pagination .page-next, .pagination .page-pre { font-family: var(--font-mono); }

/* ---------- 18. 产品详情 ---------- */
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: start; }
.detail-gallery { position: sticky; top: 100px; }
.detail-gallery__main { border: 1px solid var(--line-gold); border-radius: var(--radius); overflow: hidden; height: 400px; }
.detail-gallery__main img { width: 100%; height: 100%; object-fit: cover; }
.detail-gallery__thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 12px; }
.detail-gallery__thumbs div { height: 78px; border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--line); cursor: pointer; opacity: .7; transition: var(--transition); }
.detail-gallery__thumbs div:hover, .detail-gallery__thumbs div.active { border-color: var(--gold); opacity: 1; }
.detail-gallery__thumbs img { width: 100%; height: 100%; object-fit: cover; }

.detail-info__title { font-size: 26px; font-weight: 800; color: var(--white); line-height: 1.4; }
.detail-info__en { font-family: var(--font-mono); font-size: 12px; letter-spacing: .2em; color: var(--silver); text-transform: uppercase; margin-top: 8px; }
.detail-info__line { width: 56px; height: 2px; background: var(--gold); margin: 18px 0 22px; }
.detail-info__params { display: grid; gap: 12px; margin-bottom: 28px; }
.detail-info__param { display: flex; align-items: center; gap: 12px; padding: 12px 16px; background: rgba(255,255,255,.03); border: 1px solid var(--line); border-radius: var(--radius-sm); font-size: 14px; }
.detail-info__param i { color: var(--gold); width: 20px; text-align: center; }
.detail-info__param b { font-weight: 600; color: var(--text); min-width: 92px; }
.detail-info__param span { color: var(--white); font-family: var(--font-mono); }
.detail-info__desc { font-size: 14px; color: var(--text-dim); line-height: 1.8; padding: 16px; background: rgba(201,168,76,.05); border-left: 3px solid var(--gold); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.detail-info__btns { display: flex; gap: 16px; margin-top: 30px; }

.detail-section { margin-top: 34px; }
.detail-section__title { font-size: 18px; font-weight: 700; color: var(--white); padding-left: 14px; border-left: 3px solid var(--gold); margin-bottom: 20px; }
.content-box { font-size: 15px; color: var(--text); line-height: 2; }
.content-box p { margin-bottom: 14px; }
.content-box h1, .content-box h2, .content-box h3, .content-box h4 { color: var(--white); margin: 22px 0 12px; }
.content-box img { border-radius: var(--radius); margin: 16px 0; border: 1px solid var(--line); }
.content-box table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 14px; }
.content-box th, .content-box td { border: 1px solid var(--line); padding: 10px 14px; text-align: left; }
.content-box th { background: var(--deep-3); color: var(--gold-light); font-weight: 600; white-space: nowrap; }
.content-box ul { padding-left: 22px; margin-bottom: 14px; }
.content-box ul li { list-style: disc; margin-bottom: 6px; }

/* ---------- 19. 表单 ---------- */
.form-card { background: linear-gradient(160deg, var(--deep-3), var(--deep-2)); border: 1px solid var(--line); border-radius: var(--radius); padding: 34px; }
.form-card__title { font-size: 20px; font-weight: 700; color: var(--white); margin-bottom: 8px; }
.form-card__sub { font-size: 13px; color: var(--text-dim); margin-bottom: 26px; }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-group--full { grid-column: 1 / -1; }
.form-label { display: block; font-size: 13px; color: var(--text); margin-bottom: 8px; }
.form-label em { color: var(--gold); font-style: normal; margin-right: 3px; }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 12px 14px; font-size: 14px; color: var(--white);
  background: rgba(255,255,255,.04); border: 1px solid var(--line); border-radius: var(--radius-sm);
  transition: var(--transition); font-family: inherit;
}
.form-input:focus, .form-select:focus, .form-textarea:focus { outline: none; border-color: var(--gold); background: rgba(201,168,76,.06); }
.form-select option { background: var(--deep-3); color: var(--text); }
.form-textarea { resize: vertical; min-height: 120px; }
.form-tip { font-size: 12px; color: var(--silver); margin-top: 8px; }
.form-tip i { color: var(--gold); }

/* ---------- 20. 搜索页 ---------- */
.search-form { display: flex; gap: 12px; max-width: 560px; margin: 0 auto 40px; }
.search-input { flex: 1; padding: 13px 18px; font-size: 15px; color: var(--white); background: rgba(255,255,255,.05); border: 1px solid var(--line); border-radius: 40px; transition: var(--transition); }
.search-input:focus { outline: none; border-color: var(--gold); }
.search-btn { background: linear-gradient(135deg, var(--gold-light), var(--gold)); color: var(--deep); border-radius: 40px; padding: 0 30px; font-weight: 700; }
.search-btn:hover { box-shadow: var(--shadow-gold); transform: translateY(-1px); }
.search-result-tip { text-align: center; color: var(--text-dim); font-size: 14px; margin-bottom: 30px; }
.search-result-tip b { color: var(--gold-light); }

/* 空状态 */
.no-data { text-align: center; padding: 70px 0; color: var(--silver); }
.no-data i { font-size: 44px; color: var(--deep-4); display: block; margin-bottom: 16px; }

/* ---------- 21. 关于我们 ---------- */
.about-lead { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; margin-bottom: 60px; }
.about-lead__img { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line-gold); }
.about-lead__text .sec-head { text-align: left; margin-bottom: 24px; }
.about-lead__text .sec-head__bar { margin-left: 0; }
.about-lead__p { color: var(--text-dim); font-size: 15px; line-height: 1.9; margin-bottom: 12px; }
.about-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin: 50px 0; }
.about-stats__item { text-align: center; padding: 26px 14px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--deep-2); }
.about-stats__item b { display: block; font-family: var(--font-mono); font-size: 30px; color: var(--gold-light); }
.about-stats__item span { font-size: 13px; color: var(--silver); margin-top: 8px; display: block; }
.milestone { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.milestone__item { position: relative; padding: 24px 20px; border-top: 2px solid var(--gold); background: var(--deep-2); border-radius: 0 0 var(--radius) var(--radius); }
.milestone__year { font-family: var(--font-mono); font-size: 22px; color: var(--gold); font-weight: 700; }
.milestone__txt { margin-top: 10px; font-size: 13px; color: var(--text-dim); line-height: 1.7; }

/* ---------- 21.1 资质认证 ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.cert-item { display: flex; align-items: center; gap: 12px; padding: 18px 20px; background: var(--deep-2); border: 1px solid var(--line); border-radius: var(--radius-sm); transition: var(--transition); }
.cert-item:hover { border-color: var(--line-gold); transform: translateY(-3px); }
.cert-item i { color: var(--gold); font-size: 22px; }
.cert-item span { font-size: 14px; color: var(--text); }

/* ---------- 21.2 联系我们 ---------- */
.contact-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 40px; }
.contact-card { text-align: center; padding: 28px 18px; background: linear-gradient(160deg, var(--deep-3), var(--deep-2)); border: 1px solid var(--line); border-radius: var(--radius); transition: var(--transition); }
.contact-card:hover { transform: translateY(-5px); border-color: var(--line-gold); box-shadow: var(--shadow-card); }
.contact-card__icon { width: 52px; height: 52px; margin: 0 auto 14px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: linear-gradient(135deg, var(--gold-light), var(--gold)); color: var(--deep); font-size: 20px; box-shadow: var(--shadow-gold); }
.contact-card b { display: block; font-size: 14px; color: var(--text); }
.contact-card__val { display: block; margin-top: 8px; font-family: var(--font-mono); font-size: 16px; color: var(--gold-light); }
.contact-card__val--sm { font-size: 13px; line-height: 1.6; }
.contact-card small { display: block; margin-top: 6px; font-size: 12px; color: var(--silver); }
.contact-body { display: grid; grid-template-columns: 1.6fr 1fr; gap: 26px; align-items: start; }
.contact-aside { display: grid; gap: 18px; }
.contact-aside__box { padding: 24px; background: var(--deep-2); border: 1px solid var(--line); border-radius: var(--radius); }
.contact-aside__title { font-size: 15px; font-weight: 700; color: var(--white); padding-bottom: 12px; border-bottom: 1px solid var(--line); margin-bottom: 16px; }
.contact-aside__list { display: grid; gap: 12px; }
.contact-aside__list li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text); }
.contact-aside__list i { color: var(--gold); }
.contact-aside__txt { font-size: 13px; color: var(--text-dim); line-height: 1.8; }

/* 验证码行 */
.form-code { display: flex; gap: 12px; align-items: stretch; }
.form-code__input { flex: 1; }
.form-code__img { width: 120px; height: 46px; border-radius: var(--radius-sm); border: 1px solid var(--line); cursor: pointer; object-fit: cover; background: #fff; }
.form-code__img:hover { border-color: var(--gold); }

/* ---------- 21.3 项目咨询流程 ---------- */
.proc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 40px; }
.proc-item { position: relative; padding: 28px 22px 26px; background: linear-gradient(160deg, var(--deep-3), var(--deep-2)); border: 1px solid var(--line); border-radius: var(--radius); text-align: center; transition: var(--transition); }
.proc-item:hover { transform: translateY(-5px); border-color: var(--line-gold); box-shadow: var(--shadow-card); }
.proc-item__no { position: absolute; top: 14px; right: 18px; font-family: var(--font-mono); font-size: 34px; font-weight: 800; color: rgba(201,168,76,.12); }
.proc-item i { font-size: 26px; color: var(--gold); margin-bottom: 12px; }
.proc-item b { display: block; font-size: 15px; color: var(--white); margin-bottom: 8px; }
.proc-item small { font-size: 12px; color: var(--text-dim); line-height: 1.7; display: block; }

/* ---------- 21.4 新闻详情 ---------- */
.news-detail__meta { display: flex; align-items: center; gap: 22px; margin-top: 16px; padding-bottom: 20px; border-bottom: 1px solid var(--line); font-size: 13px; color: var(--silver); }
.news-detail__meta i { color: var(--gold); font-size: 12px; margin-right: 5px; }
.list-grid--3 { grid-template-columns: repeat(3, 1fr); }

/* ---------- 22. 响应式 ---------- */
@media (max-width: 1024px) {
  .header__nav { display: none; }
  .header__actions .header__cta { display: none; }
  .hamburger { display: flex; }
  .header__inner { height: 66px; }
  .page-banner { margin-top: 66px; height: 260px; }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .allprod-grid { grid-template-columns: repeat(2, 1fr); }
  .featured { grid-template-columns: 1fr; }
  .feat-card--main, .featured .feat-card:nth-child(2) { transform: none; margin-bottom: 8px; }
  .feat-card--main:hover, .featured .feat-card:nth-child(2):hover { transform: translateY(-6px); }
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-card:nth-child(3) { border-left: none; border-top: 1px solid var(--line-gold); }
  .tech-card:nth-child(4) { border-top: 1px solid var(--line-gold); }
  .news-layout { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 34px; }
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .list-grid { grid-template-columns: repeat(2, 1fr); }
  .detail-grid { grid-template-columns: 1fr; }
  .detail-gallery { position: static; }
}

@media (max-width: 768px) {
  .sec { padding: 60px 0; }
  .sec-head { margin-bottom: 34px; }
  .sec-head__title { font-size: 24px; }
  .hero { height: 82vh; min-height: 520px; }
  .hero-nav { display: none; }
  .hero__actions .btn { flex: 1; justify-content: center; }
  /* 手机端：轮播分页方格缩小（PC 端保持原尺寸） */
  .hero-pagination .swiper-pagination-bullet { width: 12px; height: 2px; }
  .hero-pagination .swiper-pagination-bullet-active { width: 20px; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .stats__item { padding: 36px 12px; }
  .stats__item:nth-child(3)::before { display: none; }
  .prod-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .prod-card { padding: 24px 14px 20px; }
  .prod-card__img { width: 72px; height: 72px; margin-bottom: 14px; }
  .prod-card__name { font-size: 16px; }
  .prod-card__power { font-size: 12px; padding: 4px 10px; }
  .prod-card__arrow { margin-top: 14px; width: 28px; height: 28px; font-size: 11px; }
  .prod-more { margin-top: 30px; }
  .sol-card__img { height: 160px; }
  /* 手机端：主推产品压缩（2 列并排） */
  .featured { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .feat-card__img { height: 150px; }
  .feat-card__body { padding: 18px 16px 20px; }
  .feat-card__name { font-size: 15px; }
  .feat-card__specs { margin-top: 12px; gap: 8px; }
  .feat-card__spec { font-size: 13px; gap: 7px; }
  .feat-card__spec i { width: 16px; font-size: 12px; }
  .feat-card__more { margin-top: 14px; font-size: 12px; }
  /* 手机端：全系列产品压缩（2 列紧凑卡片） */
  .allprod-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .allprod-card__img { height: 150px; }
  .allprod-card__body { padding: 14px 16px 18px; }
  .allprod-card__name { font-size: 15px; }
  .allprod-card__meta { margin-top: 10px; gap: 6px; }
  .allprod-card__meta span { font-size: 12px; gap: 6px; }
  .allprod-card__meta i { width: 12px; }
  .allprod-card__more { padding-top: 12px; font-size: 12px; }
  .case-grid { grid-template-columns: 1fr; }
  .case-card { height: 250px; }
  .case-grid .case-card { height: 190px; }
  .tech-grid { grid-template-columns: repeat(4, 1fr); }
  .tech-card { padding: 18px 6px 16px; }
  .tech-card__icon { width: 40px; height: 40px; margin-bottom: 10px; font-size: 15px; }
  .tech-card__name { font-size: 12px; }
  .tech-card__desc, .tech-card__data { display: none; }
  .cta__box { padding: 40px 26px; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__links { display: flex; flex-wrap: wrap; gap: 10px 22px; }
  .footer__bottom-inner { flex-direction: column; text-align: center; }
  .list-grid { grid-template-columns: 1fr; }
  .news-list-page__item { flex-direction: column; }
  .news-list-page__img { width: 100%; height: 180px; }
  /* 手机端：新闻资讯压缩 */
  .news-main { min-height: 0; }
  .news-main__img { height: 150px; }
  .news-main__body { padding: 14px 16px 16px; }
  .news-main__name { font-size: 16px; margin-top: 6px; }
  .news-main__desc { margin-top: 8px; font-size: 13px; -webkit-line-clamp: 1; }
  .news-main__meta { margin-top: 12px; gap: 12px; font-size: 12px; }
  .news-list { gap: 10px; }
  .news-item { padding: 12px 14px; gap: 10px; }
  .news-item__date { width: 42px; padding-right: 10px; }
  .news-item__date b { font-size: 16px; }
  .news-item__date span { font-size: 10px; }
  .news-item__name { font-size: 14px; }
  .about-lead { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .milestone { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .partner__logo { min-width: 140px; padding: 0 20px; }
  .partner__logo img { max-height: 34px; max-width: 120px; }
  /* 手机端：侧边栏黄条可折叠（点黄条展开/收起分类） */
  .sidebar__title { display: flex; align-items: center; justify-content: space-between; cursor: pointer; }
  .sidebar__title-arrow { display: block; font-size: 13px; color: var(--deep); transition: transform .3s; }
  .sidebar.is-collapsed .sidebar__title-arrow { transform: rotate(180deg); }
  .sidebar.is-collapsed .sidebar__nav,
  .sidebar.is-collapsed .sidebar__phone { display: none; }
  /* 手机端：产品列表卡片压缩 */
  .list-card__img { height: 150px; }
  .list-card__body { padding: 14px 16px 16px; }
  .list-card__title { font-size: 15px; }
  .list-card__desc { margin-top: 8px; font-size: 12px; -webkit-line-clamp: 1; }
  .list-card__meta { margin-top: 10px; padding-top: 10px; font-size: 11px; }
  /* 手机端：技术参数表格保持自然宽度、横向滚动（避免列挤压换行） */
  .tech-content { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .tech-content table { width: max-content; min-width: 100%; }
  /* 手机端：关于我们页面压缩 */
  .about-lead { margin-bottom: 36px; gap: 24px; }
  .about-lead__img { height: 210px; }
  .about-lead__text .sec-head { margin-bottom: 16px; }
  .about-lead__text .content-box { font-size: 14px; line-height: 1.8; }
  .about-lead__text .content-box p { margin-bottom: 10px; }
  .about-stats { margin: 32px 0; gap: 12px; }
  .about-stats__item { padding: 16px 8px; }
  .about-stats__item b { font-size: 24px; }
  .about-stats__item span { font-size: 12px; margin-top: 6px; }
  .milestone { gap: 12px; }
  .milestone__item { padding: 14px 12px; }
  .milestone__year { font-size: 18px; }
  .milestone__txt { margin-top: 6px; font-size: 12px; line-height: 1.6; }
  .cert-grid { gap: 10px; }
  .cert-item { padding: 12px 14px; gap: 10px; }
  .cert-item i { font-size: 16px; }
  .cert-item span { font-size: 13px; }
  .contact-cards { grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 28px; }
  .contact-card { padding: 14px 6px; }
  .contact-card__icon { width: 34px; height: 34px; margin-bottom: 8px; font-size: 14px; }
  .contact-card b { font-size: 12px; }
  .contact-card__val { margin-top: 4px; font-size: 12px; line-height: 1.5; word-break: break-all; }
  .contact-card__val--sm { font-size: 10px; }
  .contact-card small { margin-top: 4px; font-size: 10px; }
  .contact-body { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .proc-grid { grid-template-columns: repeat(2, 1fr); }
  .list-grid--3 { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .contact-cards { grid-template-columns: repeat(4, 1fr); gap: 6px; }
  .contact-card { padding: 12px 4px; }
  .cert-grid { grid-template-columns: 1fr; }
  .proc-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}