/* =========================================================================
   main.css —— 湖南电瓷海外官网样式
   配色：深海军蓝（电力工业）+ 琥珀橙（高电压警示）
   ========================================================================= */

/* ---------- 设计变量 ---------- */
:root {
  --navy: #0b2d4a;
  --navy-2: #123f66;
  --navy-3: #1c5486;
  --amber: #e8830c;
  --amber-2: #c96a00;

  --ink: #14212c;
  --body: #46596a;
  --muted: #7c8fa0;
  --line: #e0e7ee;
  --line-2: #eef3f7;

  --bg: #ffffff;
  --bg-soft: #f5f8fb;
  --bg-alt: #eaf1f7;

  --r-sm: 5px;
  --r-md: 9px;
  --r-lg: 15px;

  --sh-sm: 0 1px 3px rgba(11, 45, 74, .07);
  --sh-md: 0 6px 22px rgba(11, 45, 74, .10);
  --sh-lg: 0 20px 48px rgba(11, 45, 74, .15);

  --wrap: 1220px;
  --head-h: 72px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--head-h) + 14px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--body);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  margin: 0 0 .5em;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.011em;
}
h1 { font-size: clamp(1.95rem, 1.3rem + 2.5vw, 3.05rem); }
h2 { font-size: clamp(1.5rem, 1.15rem + 1.5vw, 2.25rem); }
h3 { font-size: clamp(1.06rem, 1rem + .45vw, 1.3rem); }
h4 { font-size: 1.03rem; }
p { margin: 0 0 1.05em; }
p:last-child { margin-bottom: 0; }
ul, ol { margin: 0 0 1.05em; padding-left: 1.15em; }
li { margin-bottom: .35em; }
a { color: var(--navy-3); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--amber); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea, select { font-family: inherit; font-size: inherit; }
table { border-collapse: collapse; }

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 2px;
  border-radius: 3px;
}

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 22px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip {
  position: absolute; top: -60px; left: 12px; z-index: 999;
  background: var(--navy); color: #fff; padding: 10px 18px;
  border-radius: var(--r-sm); transition: top .2s var(--ease);
}
.skip:focus { top: 10px; color: #fff; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 27px;
  border: 1.6px solid transparent;
  border-radius: var(--r-sm);
  font-size: .94rem; font-weight: 600; line-height: 1.2;
  cursor: pointer; text-align: center; white-space: nowrap;
  transition: all .25s var(--ease);
}
.btn svg { width: 17px; height: 17px; flex-shrink: 0; }
.btn-amber { background: var(--amber); color: #fff; }
.btn-amber:hover { background: var(--amber-2); color: #fff; transform: translateY(-2px); box-shadow: var(--sh-md); }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: var(--navy-2); color: #fff; transform: translateY(-2px); box-shadow: var(--sh-md); }
.btn-line { border-color: var(--navy); color: var(--navy); background: transparent; }
.btn-line:hover { background: var(--navy); color: #fff; }
.btn-line-w { border-color: rgba(255,255,255,.55); color: #fff; background: transparent; }
.btn-line-w:hover { background: #fff; color: var(--navy); border-color: #fff; }
.btn-sm { padding: 9px 18px; font-size: .85rem; }

/* ---------- 区块 ---------- */
.sec { padding: 82px 0; }
.sec-sm { padding: 56px 0; }
.sec-soft { background: var(--bg-soft); }
.sec-alt { background: var(--bg-alt); }
.sec-dark { background: var(--navy); color: rgba(255,255,255,.76); }
.sec-dark h2, .sec-dark h3 { color: #fff; }

.shead { max-width: 760px; margin-bottom: 46px; }
.shead.mid { margin-left: auto; margin-right: auto; text-align: center; }
.shead p { color: var(--muted); font-size: 1.01rem; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .77rem; font-weight: 700;
  letter-spacing: .13em; text-transform: uppercase;
  color: var(--amber); margin-bottom: 13px;
}
.eyebrow::before {
  content: ""; width: 25px; height: 2px;
  background: var(--amber); border-radius: 2px;
}
.shead.mid .eyebrow::after {
  content: ""; width: 25px; height: 2px;
  background: var(--amber); border-radius: 2px;
}

/* ---------- 卡片 ---------- */
.card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--r-lg); overflow: hidden;
  transition: all .3s var(--ease);
}
.card:hover { border-color: transparent; box-shadow: var(--sh-lg); transform: translateY(-5px); }
.card-body { padding: 25px 23px; }
.card-body h3 { margin-bottom: 8px; }
.card-body p { font-size: .92rem; color: var(--muted); margin: 0; }

.cmedia { position: relative; aspect-ratio: 4/3; overflow: hidden; background: var(--bg-alt); }
.cmedia img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s var(--ease); }
.card:hover .cmedia img { transform: scale(1.05); }

.badge {
  display: inline-block; padding: 4px 11px;
  border-radius: 100px; font-size: .73rem; font-weight: 600;
  background: var(--bg-alt); color: var(--navy-2); line-height: 1.5;
}
.badge-amber { background: rgba(232,131,12,.13); color: var(--amber-2); }
.badge-teal { background: rgba(13,148,136,.12); color: #0f766e; }
.cmedia .badge {
  position: absolute; top: 13px; left: 13px;
  background: rgba(255,255,255,.95); backdrop-filter: blur(4px);
}

/* ---------- 网格 ---------- */
.grid { display: grid; gap: 25px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- 表格 ---------- */
.tbl { width: 100%; font-size: .91rem; }
.tbl th, .tbl td { padding: 12px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.tbl th { width: 38%; background: var(--bg-soft); color: var(--ink); font-weight: 600; }
.tbl td { color: var(--body); font-weight: 500; }
.tbl tr:last-child th, .tbl tr:last-child td { border-bottom: none; }
.tbl tr:hover th { background: var(--bg-alt); }
.tbl-en th { width: 46%; }

/* ---------- 打勾列表 ---------- */
.ticks { list-style: none; padding: 0; margin: 0; }
.ticks li { display: flex; align-items: flex-start; gap: 11px; margin-bottom: 13px; }
.ticks li::before {
  content: ""; flex-shrink: 0; width: 20px; height: 20px; margin-top: 3px;
  border-radius: 50%;
  background: rgba(232,131,12,.14) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23c96a00' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/11px no-repeat;
}

/* ---------- 筛选 ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 32px; }
.fbtn {
  padding: 9px 19px; border: 1.6px solid var(--line);
  border-radius: 100px; background: #fff; color: var(--body);
  font-size: .87rem; font-weight: 500; cursor: pointer;
  transition: all .22s var(--ease);
}
.fbtn:hover { border-color: var(--navy-3); color: var(--navy-3); }
.fbtn.on { background: var(--navy); border-color: var(--navy); color: #fff; }

/* ---------- 分页 ---------- */
.pager { display: flex; justify-content: center; gap: 8px; margin-top: 42px; flex-wrap: wrap; }
.pager button {
  min-width: 40px; height: 40px; padding: 0 12px;
  border: 1.6px solid var(--line); border-radius: var(--r-sm);
  background: #fff; color: var(--body);
  font-weight: 600; cursor: pointer; transition: all .2s var(--ease);
}
.pager button:hover:not(:disabled) { border-color: var(--navy-3); color: var(--navy-3); }
.pager button.on { background: var(--navy); border-color: var(--navy); color: #fff; }
.pager button:disabled { opacity: .4; cursor: not-allowed; }

/* ---------- 表单 ---------- */
.fg { margin-bottom: 17px; }
.fg label { display: block; margin-bottom: 6px; font-size: .85rem; font-weight: 600; color: var(--ink); }
.fg .req { color: var(--amber); }
.fc {
  width: 100%; padding: 12px 14px;
  border: 1.6px solid var(--line); border-radius: var(--r-sm);
  background: #fff; color: var(--ink);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.fc:focus { outline: none; border-color: var(--navy-3); box-shadow: 0 0 0 3px rgba(28,84,134,.1); }
textarea.fc { min-height: 128px; resize: vertical; }
select.fc {
  appearance: none; padding-right: 38px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2346596a' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; background-size: 17px;
}
.frow { display: grid; grid-template-columns: 1fr 1fr; gap: 0 17px; }

.fcard { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 33px 31px; box-shadow: var(--sh-sm); }
.fnote { font-size: .83rem; color: var(--muted); margin-top: 15px; }
.fok {
  display: none; padding: 13px 17px; border-radius: var(--r-sm);
  background: rgba(16,140,90,.1); border: 1px solid rgba(16,140,90,.3);
  color: #11663f; font-size: .89rem; margin-bottom: 17px;
}
.fok.show { display: block; }

/* ---------- 页头 ---------- */
.hdr {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.97); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s var(--ease);
}
.hdr.solid { box-shadow: var(--sh-md); }

.topbar { background: var(--navy); color: rgba(255,255,255,.7); font-size: .8rem; }
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 37px; gap: 20px; flex-wrap: wrap; }
.topbar a { color: rgba(255,255,255,.86); }
.topbar a:hover { color: var(--amber); }
.tb-list { display: flex; gap: 22px; flex-wrap: wrap; }
.tb-item { display: inline-flex; align-items: center; gap: 6px; }
.tb-item svg { width: 14px; height: 14px; opacity: .6; flex-shrink: 0; }

.navbar { display: flex; align-items: center; justify-content: space-between; min-height: var(--head-h); gap: 22px; }
.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand img { height: 46px; width: 46px; object-fit: contain; }
.brand-txt { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { font-size: 1.06rem; font-weight: 700; color: var(--navy); line-height: 1.2; }
.brand-sub { font-size: .7rem; color: var(--muted); }

.menu { display: flex; align-items: center; gap: 3px; list-style: none; margin: 0; padding: 0; }
.menu li { margin: 0; position: relative; }
.menu > li > a {
  display: block; padding: 10px 14px; border-radius: var(--r-sm);
  font-size: .92rem; font-weight: 500; color: var(--ink); position: relative;
}
.menu > li > a::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px;
  height: 2px; background: var(--amber);
  transform: scaleX(0); transform-origin: left; transition: transform .28s var(--ease);
}
.menu > li > a:hover { color: var(--navy); }
.menu > li > a:hover::after, .menu > li > a.on::after { transform: scaleX(1); }
.menu > li > a.on { color: var(--navy); font-weight: 600; }

/* 下拉 */
.menu .drop { list-style: none; padding: 0; margin: 0; }
.menu li.has-drop > .drop {
  position: absolute; top: 100%; left: 0; min-width: 250px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-md);
  box-shadow: var(--sh-lg); padding: 7px; margin: 0;
  opacity: 0; visibility: hidden; transform: translateY(7px);
  transition: all .22s var(--ease);
}
.menu li.has-drop:hover > .drop, .menu li.has-drop:focus-within > .drop {
  opacity: 1; visibility: visible; transform: none;
}
.menu li.has-drop > .drop li a {
  display: block; padding: 9px 12px; border-radius: var(--r-sm);
  font-size: .88rem; color: var(--body); transition: all .18s var(--ease);
}
.menu li.has-drop > .drop li a:hover { background: var(--bg-soft); color: var(--navy); padding-left: 16px; }

.lang { display: flex; align-items: center; gap: 2px; padding: 3px; background: var(--bg-alt); border-radius: 100px; }
.lang button {
  padding: 5px 12px; border: none; border-radius: 100px;
  background: transparent; color: var(--muted);
  font-size: .79rem; font-weight: 600; cursor: pointer; transition: all .22s var(--ease);
}
.lang button.on { background: #fff; color: var(--navy); box-shadow: var(--sh-sm); }

.nav-acts { display: flex; align-items: center; gap: 11px; }

.burger {
  display: none; width: 42px; height: 42px;
  border: 1.6px solid var(--line); border-radius: var(--r-sm);
  background: #fff; cursor: pointer; padding: 0; place-items: center;
}
.burger span {
  display: block; width: 19px; height: 2px; background: var(--navy);
  position: relative; transition: background .2s var(--ease);
}
.burger span::before, .burger span::after {
  content: ""; position: absolute; left: 0; width: 19px; height: 2px; background: var(--navy);
  transition: transform .28s var(--ease);
}
.burger span::before { top: -6px; }
.burger span::after { top: 6px; }
.burger[aria-expanded="true"] span { background: transparent; }
.burger[aria-expanded="true"] span::before { transform: translateY(6px) rotate(45deg); }
.burger[aria-expanded="true"] span::after { transform: translateY(-6px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(112deg, #071f33 0%, var(--navy) 52%, var(--navy-3) 100%);
  color: rgba(255,255,255,.8);
  padding: 92px 0 100px;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(ellipse 82% 72% at 76% 42%, #000 18%, transparent 76%);
}
.hero::after {
  content: ""; position: absolute; right: -150px; top: -150px;
  width: 640px; height: 640px; border-radius: 50%;
  background: radial-gradient(circle, rgba(232,131,12,.17) 0%, transparent 68%);
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 2; }
.hero-head { max-width: 900px; }
.hero-text { max-width: 820px; }
.hero-stage { position: relative; margin-top: 48px; }
.hero h1 { color: #fff; margin-bottom: 19px; }
.hero h1 .hl { color: var(--amber); }
.hero-lead { font-size: 1.04rem; color: rgba(255,255,255,.79); max-width: 545px; margin-bottom: 28px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 30px; }
.hero-tag {
  padding: 6px 14px; border: 1px solid rgba(255,255,255,.2);
  border-radius: 100px; background: rgba(255,255,255,.07);
  font-size: .79rem; color: rgba(255,255,255,.87);
}
.hero .btns { display: flex; gap: 13px; flex-wrap: wrap; }

.hero-vis { position: relative; }
.hero-frame {
  position: relative; border-radius: var(--r-lg); overflow: hidden;
  border: 1px solid rgba(255,255,255,.14);
  box-shadow: 0 26px 60px rgba(0,0,0,.34);
  aspect-ratio: 4/3; background: rgba(255,255,255,.06);
}
.hero-frame img { width: 100%; height: 100%; object-fit: cover; }
.hero-badge {
  position: absolute; left: 20px; bottom: 20px; z-index: 5;
  display: flex; align-items: center; gap: 11px;
  padding: 12px 18px; background: rgba(255,255,255,.95);
  backdrop-filter: blur(10px); border-radius: var(--r-md); box-shadow: var(--sh-md);
}
.hero-badge .n { font-size: 1.45rem; font-weight: 800; color: var(--navy); line-height: 1; }
.hero-badge .l { font-size: .75rem; color: var(--muted); line-height: 1.35; }

/* 首页大图轮播 */
.hero-carousel {
  position: relative; width: 100%; aspect-ratio: 16 / 7;
  border-radius: var(--r-lg); overflow: hidden;
  border: 1px solid rgba(255,255,255,.14);
  box-shadow: 0 26px 60px rgba(0,0,0,.34);
  background: rgba(255,255,255,.06);
}
.hslide {
  position: absolute; inset: 0; opacity: 0; transform: scale(1.05);
  transition: opacity .9s var(--ease), transform 6s linear;
}
.hslide.active { opacity: 1; transform: scale(1); }
.hslide img { width: 100%; height: 100%; object-fit: cover; }
.hcap {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 46px 26px 20px;
  background: linear-gradient(to top, rgba(7,31,51,.82), rgba(7,31,51,0));
  color: #fff; font-size: .96rem; font-weight: 600; letter-spacing: .01em;
}
.hcar-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 46px; height: 46px; border: none; border-radius: 50%;
  background: rgba(255,255,255,.92); color: var(--navy);
  display: grid; place-items: center; cursor: pointer;
  box-shadow: var(--sh-md); transition: background .2s var(--ease), transform .2s var(--ease);
}
.hcar-btn:hover { background: #fff; transform: translateY(-50%) scale(1.06); }
.hcar-prev { left: 16px; }
.hcar-next { right: 16px; }
.hcar-btn svg { width: 20px; height: 20px; }
.hcar-dots {
  position: absolute; left: 0; right: 0; bottom: 16px;
  display: flex; justify-content: center; gap: 9px; z-index: 4;
}
.hdot {
  width: 9px; height: 9px; padding: 0; border: none; border-radius: 50%;
  background: rgba(255,255,255,.5); cursor: pointer;
  transition: all .25s var(--ease);
}
.hdot.on { background: var(--amber); width: 24px; border-radius: 100px; }

.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  margin-top: 64px; padding-top: 30px;
  border-top: 1px solid rgba(255,255,255,.14);
  position: relative; z-index: 2;
}
.hero-stats.sh { grid-template-columns: repeat(5, 1fr); }
.hstat { padding: 0 18px; border-left: 1px solid rgba(255,255,255,.12); }
.hstat:first-child { border-left: none; padding-left: 0; }
.hstat .v { font-size: clamp(1.5rem, 1.15rem + 1.35vw, 2.25rem); font-weight: 800; color: #fff; line-height: 1.1; }
.hstat .v .s { color: var(--amber); }
.hstat .l { font-size: .79rem; color: rgba(255,255,255,.6); margin-top: 4px; line-height: 1.45; }

/* ---------- 优势 ---------- */
.feat { display: grid; grid-template-columns: repeat(4, 1fr); gap: 25px; }
.feat-i {
  padding: 29px 25px; background: #fff;
  border: 1px solid var(--line); border-top: 3px solid var(--navy);
  border-radius: var(--r-md); transition: all .3s var(--ease);
}
.feat-i:hover { border-top-color: var(--amber); box-shadow: var(--sh-md); transform: translateY(-4px); }
.feat-ic {
  width: 47px; height: 47px; display: grid; place-items: center;
  border-radius: var(--r-md); background: var(--bg-alt);
  margin-bottom: 17px; color: var(--navy);
}
.feat-i:hover .feat-ic { background: rgba(232,131,12,.13); color: var(--amber); }
.feat-ic svg { width: 24px; height: 24px; }
.feat-i h3 { font-size: 1rem; margin-bottom: 7px; }
.feat-i p { font-size: .89rem; color: var(--muted); margin: 0; }

/* ---------- 产品卡 ---------- */
.pcard .model {
  display: inline-block; margin-bottom: 8px;
  font-family: Consolas, "Courier New", monospace;
  font-size: .78rem; font-weight: 700; letter-spacing: .05em;
  color: var(--amber);
}
.pcard h3 { font-size: 1.04rem; margin-bottom: 8px; }
.pcard .card-body { padding: 21px 21px 23px; }
.pcard .kv {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--line);
}
.pcard .kv span { font-size: .73rem; padding: 3px 9px; background: var(--bg-soft); border-radius: var(--r-sm); color: var(--muted); }

/* ---------- 关于 ---------- */
.about-split { display: grid; grid-template-columns: 1fr 1fr; gap: 58px; align-items: center; }
.about-media { position: relative; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.about-grid .ib {
  border-radius: var(--r-md); overflow: hidden;
  aspect-ratio: 4/3; background: var(--bg-alt); border: 1px solid var(--line);
}
.about-grid .ib:first-child { grid-row: span 2; aspect-ratio: auto; }
.about-grid img { width: 100%; height: 100%; object-fit: cover; }

.exp-chip {
  position: absolute; right: -16px; bottom: -20px;
  padding: 19px 25px; background: var(--navy); color: #fff;
  border-radius: var(--r-md); box-shadow: var(--sh-lg); text-align: center;
}
.exp-chip .v { font-size: 2rem; font-weight: 800; line-height: 1; }
.exp-chip .v .s { color: var(--amber); }
.exp-chip .l { font-size: .76rem; color: rgba(255,255,255,.7); margin-top: 4px; }

/* ---------- 段落（关于我们） ---------- */
.para { margin-bottom: 52px; }
.para:last-child { margin-bottom: 0; }
.para h2 { font-size: clamp(1.35rem, 1.1rem + 1vw, 1.8rem); margin-bottom: 16px; }
.para p { font-size: 1rem; color: var(--body); }

/* ---------- 时间线 ---------- */
.tl { list-style: none; padding: 0; margin: 0; position: relative; }
.tl::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px; background: var(--line); }
.tl li { position: relative; padding-left: 33px; margin-bottom: 21px; }
.tl li:last-child { margin-bottom: 0; }
.tl .dot { position: absolute; left: 0; top: 6px; width: 16px; height: 16px; border-radius: 50%; background: #fff; border: 3px solid var(--navy); }
.tl .yr { font-size: .82rem; font-weight: 700; color: var(--amber); }
.tl h4 { margin: 1px 0 3px; font-size: .97rem; }
.tl p { font-size: .87rem; color: var(--muted); margin: 0; }

/* ---------- 流程 ---------- */
.flow { display: grid; grid-template-columns: repeat(6, 1fr); gap: 19px; counter-reset: fl; }
.flow-i { position: relative; padding-top: 6px; }
.flow-i::before {
  counter-increment: fl; content: counter(fl, decimal-leading-zero);
  display: block; font-size: 2rem; font-weight: 800; color: var(--line); line-height: 1; margin-bottom: 13px;
}
.flow-i::after { content: ""; position: absolute; top: 16px; right: 9px; width: 30px; height: 2px; background: var(--line); }
.flow-i:last-child::after { display: none; }
.flow-i h4 { margin-bottom: 6px; font-size: .95rem; }
.flow-i p { font-size: .84rem; color: var(--muted); margin: 0; }
.flow.flow-5 { grid-template-columns: repeat(5, 1fr); }

/* ---------- 资质 ---------- */
.certs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 21px; }
.cert-i {
  padding: 25px 21px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--r-md);
  transition: all .3s var(--ease);
}
.cert-i:hover { box-shadow: var(--sh-md); transform: translateY(-4px); border-color: transparent; }
.cert-i .img {
  height: 108px; margin-bottom: 15px;
  display: grid; place-items: center;
  background: var(--bg-soft); border-radius: var(--r-sm); overflow: hidden;
}
.cert-i .img img { max-height: 100%; max-width: 100%; object-fit: contain; }
.cert-i h4 { font-size: .9rem; margin-bottom: 5px; line-height: 1.45; }
.cert-i .no { font-size: .74rem; color: var(--muted); font-family: Consolas, monospace; }
.cert-i .val { font-size: .74rem; color: var(--amber-2); font-weight: 600; margin-top: 4px; }

.cert-dark {
  padding: 25px 21px; text-align: center;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.13);
  border-radius: var(--r-md); transition: all .3s var(--ease);
}
.cert-dark:hover { background: rgba(255,255,255,.1); border-color: rgba(232,131,12,.5); transform: translateY(-4px); }
.cert-dark img { height: 74px; margin: 0 auto 14px; object-fit: contain; }
.cert-dark .t { font-size: .86rem; color: rgba(255,255,255,.9); font-weight: 600; line-height: 1.5; }

/* ---------- 案例 ---------- */
.meta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 11px; }
.meta span { display: inline-flex; align-items: center; gap: 5px; font-size: .77rem; color: var(--muted); }
.meta svg { width: 14px; height: 14px; color: var(--navy-3); opacity: .65; }

.ccard .card-body { padding: 23px 21px; }
.ccard h3 { font-size: 1.02rem; margin-bottom: 9px; }
.ccard .sm { font-size: .89rem; color: var(--muted); margin-bottom: 15px; }
.cstats { display: flex; gap: 19px; padding-top: 14px; border-top: 1px dashed var(--line); }
.cstats div .v { font-size: .96rem; font-weight: 700; color: var(--navy); line-height: 1.3; }
.cstats div .l { font-size: .71rem; color: var(--muted); }

/* 案例详情 */
.cdet { display: grid; grid-template-columns: 1.55fr 1fr; gap: 44px; align-items: start; }
.cfacts { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--r-md); padding: 25px 23px; }
.cfacts h3 { font-size: 1rem; margin-bottom: 17px; }
.frow-i { display: flex; justify-content: space-between; gap: 15px; padding: 10px 0; border-bottom: 1px dashed var(--line); font-size: .89rem; }
.frow-i:last-child { border-bottom: none; }
.frow-i .k { color: var(--muted); }
.frow-i .v { color: var(--ink); font-weight: 600; text-align: right; }

/* ---------- 新闻 ---------- */
.ncard .cmedia { aspect-ratio: 16/10; }
.ncard .card-body { padding: 19px 21px 23px; }
.ndate { font-size: .77rem; color: var(--amber); font-weight: 600; margin-bottom: 6px; }
.ncard h3 { font-size: .99rem; margin-bottom: 7px; }
.ncard p { font-size: .87rem; color: var(--muted); margin: 0; }

/* 文章 */
.article { max-width: 820px; margin: 0 auto; }
.article-meta { display: flex; flex-wrap: wrap; gap: 17px; align-items: center; padding-bottom: 19px; margin-bottom: 26px; border-bottom: 1px solid var(--line); font-size: .87rem; color: var(--muted); }
.article-img { border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--line); margin-bottom: 30px; aspect-ratio: 16/9; }
.article-img img { width: 100%; height: 100%; object-fit: cover; }
.article-body p { font-size: 1rem; line-height: 1.85; }
.article-body p + p { margin-top: 1.05em; }
.back {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: .89rem; font-weight: 600; color: var(--navy-3); margin-bottom: 21px;
}
.back svg { width: 15px; height: 15px; transition: transform .22s var(--ease); }
.back:hover svg { transform: translateX(-4px); }

/* ---------- FAQ ---------- */
.faq-i { border: 1px solid var(--line); border-radius: var(--r-md); margin-bottom: 12px; overflow: hidden; background: #fff; }
.faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 17px;
  padding: 17px 21px; border: none; background: transparent;
  text-align: left; font-size: .97rem; font-weight: 600; color: var(--ink);
  cursor: pointer; transition: background .2s var(--ease);
}
.faq-q:hover { background: var(--bg-soft); }
.faq-q .plus { flex-shrink: 0; width: 22px; height: 22px; position: relative; }
.faq-q .plus::before, .faq-q .plus::after {
  content: ""; position: absolute; top: 50%; left: 50%;
  background: var(--navy); border-radius: 2px; transform: translate(-50%,-50%);
  transition: transform .28s var(--ease), opacity .28s var(--ease);
}
.faq-q .plus::before { width: 15px; height: 2px; }
.faq-q .plus::after { width: 2px; height: 15px; }
.faq-i.open .faq-q .plus::after { transform: translate(-50%,-50%) rotate(90deg); opacity: 0; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s var(--ease); }
.faq-a .in { padding: 0 21px 19px; font-size: .91rem; color: var(--muted); }

/* ---------- 产品详情 ---------- */
.pdet { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: start; }
.gmain { border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--line); background: var(--bg-soft); aspect-ratio: 4/3; }
.gmain img { width: 100%; height: 100%; object-fit: cover; }
.gthumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 11px; margin-top: 13px; }
.gthumb {
  border: 2px solid var(--line); border-radius: var(--r-md); overflow: hidden;
  aspect-ratio: 4/3; cursor: pointer; background: var(--bg-soft); padding: 0;
  transition: border-color .22s var(--ease);
}
.gthumb img { width: 100%; height: 100%; object-fit: cover; }
.gthumb:hover { border-color: var(--navy-3); }
.gthumb.on { border-color: var(--amber); }

.pd-model { font-family: Consolas, "Courier New", monospace; font-size: .88rem; font-weight: 700; letter-spacing: .05em; color: var(--amber); display: inline-block; margin-bottom: 7px; }
.pd-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.pd-tags .badge { font-size: .76rem; padding: 4px 12px; }
.pd-tags .badge-amber { background: rgba(232,131,12,.13); color: var(--amber-2); }
.pd-lead { font-size: .99rem; color: var(--muted); margin-bottom: 14px; }
.pd-desc { font-size: 1rem; color: var(--body); line-height: 1.85; margin: 0; }
.pd-acts { display: flex; gap: 11px; flex-wrap: wrap; margin-top: 26px; padding-top: 24px; border-top: 1px solid var(--line); }

.dblock { margin-bottom: 50px; }
.dblock:last-child { margin-bottom: 0; }
.dblock > h2 { font-size: 1.3rem; padding-left: 13px; border-left: 4px solid var(--amber); margin-bottom: 19px; }
.spec-card { border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; }
.spec-head {
  display: flex; align-items: center; gap: 9px; padding: 14px 19px;
  background: var(--bg-alt); border-bottom: 1px solid var(--line);
  font-weight: 700; color: var(--navy); font-size: .94rem;
}
.spec-head svg { width: 17px; height: 17px; }

/* ---------- CTA ---------- */
.cta {
  position: relative; padding: 64px 0; overflow: hidden;
  background: linear-gradient(118deg, #071f33 0%, var(--navy) 100%);
}
.cta::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(90deg, transparent, #000 60%);
}
.cta .wrap { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta h2 { color: #fff; margin-bottom: 9px; }
.cta p { color: rgba(255,255,255,.76); margin: 0; max-width: 555px; }
.cta .btns { display: flex; gap: 13px; flex-wrap: wrap; }

/* ---------- 页脚 ---------- */
.ftr { background: #071f33; color: rgba(255,255,255,.6); font-size: .89rem; }
.ftr-main { padding: 62px 0 48px; }
.ftr-grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1.4fr; gap: 40px; }
.ftr h4 { color: #fff; font-size: .95rem; margin-bottom: 19px; padding-bottom: 11px; position: relative; }
.ftr h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 27px; height: 2px; background: var(--amber); }
.ftr-brand { display: flex; align-items: center; gap: 11px; margin-bottom: 17px; }
.ftr-brand img { height: 42px; width: 42px; object-fit: contain; }
.ftr-brand .n { color: #fff; font-size: 1.02rem; font-weight: 700; line-height: 1.3; }
.ftr-brand .fb-txt { display: flex; flex-direction: column; line-height: 1.25; }
.ftr-brand .nsub { font-size: .74rem; color: rgba(255,255,255,.55); font-weight: 500; margin-top: 2px; }
.ftr-tag { margin-bottom: 19px; line-height: 1.7; }
.ftr-links { list-style: none; padding: 0; margin: 0; }
.ftr-links li { margin-bottom: 9px; }
.ftr-links a { color: rgba(255,255,255,.6); font-size: .87rem; transition: all .2s var(--ease); }
.ftr-links a:hover { color: var(--amber); padding-left: 4px; }
.ftr-contact li { display: flex; gap: 9px; margin-bottom: 12px; align-items: flex-start; line-height: 1.6; }
.ftr-contact svg { width: 15px; height: 15px; margin-top: 4px; color: var(--amber); flex-shrink: 0; }
.ftr-contact a { color: rgba(255,255,255,.82); }
.ftr-contact a:hover { color: var(--amber); }
.ftr-social { display: flex; gap: 9px; margin-top: 17px; }
.ftr-social a {
  width: 34px; height: 34px; display: grid; place-items: center;
  border: 1px solid rgba(255,255,255,.16); border-radius: var(--r-sm);
  color: rgba(255,255,255,.7); transition: all .2s var(--ease);
}
.ftr-social a:hover { background: var(--amber); border-color: var(--amber); color: #fff; }
.ftr-social svg { width: 16px; height: 16px; }
.ftr-bot { padding: 19px 0; border-top: 1px solid rgba(255,255,255,.1); }
.ftr-bot .wrap { display: flex; align-items: center; justify-content: space-between; gap: 15px; flex-wrap: wrap; font-size: .82rem; }
.ftr-bot a { color: rgba(255,255,255,.6); }

/* ---------- 内页头 ---------- */
.phero {
  position: relative; padding: 62px 0 66px; overflow: hidden;
  background: linear-gradient(112deg, #071f33 0%, var(--navy) 100%);
  color: rgba(255,255,255,.76);
}
.phero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 50px 50px;
}
.phero .wrap { position: relative; z-index: 2; }
.phero h1 { color: #fff; font-size: clamp(1.8rem, 1.3rem + 2vw, 2.7rem); margin: 0; }
.phero .lead { margin: 11px 0 0; max-width: 700px; color: rgba(255,255,255,.74); font-size: .99rem; }

/* 面包屑 */
.crumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 17px 0; font-size: .85rem; color: rgba(255,255,255,.58); }
.crumb a { color: rgba(255,255,255,.58); }
.crumb a:hover { color: var(--amber); }
.crumb .sep { opacity: .4; }
.crumb .now { color: #fff; font-weight: 600; }
.crumb-light { color: var(--muted); }
.crumb-light a { color: var(--muted); }
.crumb-light .now { color: var(--ink); }

/* ---------- 空状态 ---------- */
.empty { text-align: center; padding: 66px 20px; color: var(--muted); }
.empty svg { width: 50px; height: 50px; opacity: .32; margin: 0 auto 15px; display: block; }

/* ---------- 联系信息 ---------- */
.info-list { list-style: none; padding: 0; margin: 0; }
.info-list li { display: flex; gap: 14px; padding: 15px 0; border-bottom: 1px dashed var(--line); }
.info-list li:last-child { border-bottom: none; }
.info-ic {
  flex-shrink: 0; width: 39px; height: 39px;
  display: grid; place-items: center;
  border-radius: var(--r-sm); background: var(--bg-alt); color: var(--navy);
}
.info-ic svg { width: 18px; height: 18px; }
.info-list .k { font-size: .78rem; color: var(--muted); margin-bottom: 2px; }
.info-list .v { color: var(--ink); font-weight: 600; word-break: break-word; }

.map-box {
  margin-top: 30px; border-radius: var(--r-md); overflow: hidden;
  border: 1px solid var(--line); aspect-ratio: 21/9;
  background: repeating-linear-gradient(45deg, #eef3f7 0 12px, #e5ecf2 12px 24px);
  display: grid; place-items: center;
}
.map-box .ph { text-align: center; padding: 22px; }
.map-box .ph svg { width: 38px; height: 38px; color: var(--muted); margin: 0 auto 9px; opacity: .5; }
.map-box .ph p { font-size: .87rem; color: var(--muted); margin: 0; }

/* ---------- 回到顶部 ---------- */
.totop {
  position: fixed; right: 21px; bottom: 21px; z-index: 90;
  width: 44px; height: 44px; display: grid; place-items: center;
  border: none; border-radius: 50%; background: var(--navy); color: #fff;
  cursor: pointer; box-shadow: var(--sh-md);
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: all .3s var(--ease);
}
.totop.show { opacity: 1; visibility: visible; transform: none; }
.totop:hover { background: var(--amber); transform: translateY(-3px); }
.totop svg { width: 19px; height: 19px; }

/* ---------- 进场动画 ---------- */
.rev { opacity: 0; transform: translateY(24px); transition: opacity .65s var(--ease), transform .65s var(--ease); }
.rev.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 40px; }
  .hero-vis { max-width: 560px; }
  .g4 { grid-template-columns: repeat(2, 1fr); }
  .feat { grid-template-columns: repeat(2, 1fr); }
  .certs { grid-template-columns: repeat(2, 1fr); }
  .flow, .flow.flow-5 { grid-template-columns: repeat(3, 1fr); gap: 28px 18px; }
  .flow-i:nth-child(3n)::after { display: none; }
  .pdet, .about-split, .cdet { grid-template-columns: 1fr; gap: 34px; }
  .contact-split { grid-template-columns: 1fr !important; gap: 34px !important; }
  .exp-chip { right: 12px; bottom: -14px; }
  .ftr-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 860px) {
  .sec { padding: 58px 0; }
  .g3 { grid-template-columns: repeat(2, 1fr); }
  .hero { padding: 62px 0 70px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 22px 0; margin-top: 46px; }
  .hero-stats.sh { grid-template-columns: repeat(2, 1fr); }
  .hstat:nth-child(odd) { padding-left: 0; border-left: none; }
  .hstat:nth-child(even) { padding-left: 18px; border-left: 1px solid rgba(255,255,255,.12); }
  .hstat:nth-child(n+3) { padding-top: 18px; border-top: 1px solid rgba(255,255,255,.1); }
  .burger { display: grid; }
  .topbar { display: none; }
  .menu {
    position: fixed; top: var(--head-h); right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    width: min(320px, 86vw); height: calc(100vh - var(--head-h));
    padding: 13px; background: #fff; box-shadow: var(--sh-lg);
    overflow-y: auto; transform: translateX(105%);
    transition: transform .32s var(--ease);
  }
  .menu.open { transform: none; }
  .menu > li > a { padding: 12px 13px; border-bottom: 1px solid var(--bg-soft); border-radius: 0; }
  .menu > li > a::after { display: none; }
  .menu > li > a.on { background: var(--bg-soft); border-left: 3px solid var(--amber); }
  .menu li.has-drop > .drop {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: none; border-left: 2px solid var(--line);
    border-radius: 0; margin: 0 0 0 14px; padding: 0 0 0 6px; min-width: 0;
    display: none;
  }
  .menu li.has-drop.open > .drop { display: block; }
  .nav-acts .btn { display: none; }
  .brand-sub { display: none; }
  .frow { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .wrap { padding: 0 17px; }
  .g2, .g3, .g4, .feat, .certs, .ftr-grid, .flow, .flow.flow-5 { grid-template-columns: 1fr; }
  .flow-i::after { display: none; }
  .sec { padding: 48px 0; }
  .shead { margin-bottom: 32px; }
  .fcard { padding: 23px 19px; }
  .gthumbs { grid-template-columns: repeat(2, 1fr); }
  .cta .wrap { flex-direction: column; align-items: flex-start; }
  .cta .btns { width: 100%; }
  .cta .btn { flex: 1; }
  .about-grid { grid-template-columns: 1fr 1fr; }
  .about-grid .ib:first-child { grid-column: span 2; grid-row: auto; aspect-ratio: 16/10; }
  .exp-chip { padding: 13px 17px; right: 8px; bottom: -12px; }
  .exp-chip .v { font-size: 1.45rem; }
  .cstats { gap: 13px; }
  .tbl th { width: 44%; }
  .tbl-en th { width: 50%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important; transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .rev { opacity: 1; transform: none; }
}

@media print {
  .hdr, .ftr, .totop, .cta, .filters, .pager, .burger { display: none !important; }
  body { color: #000; }
}

/* ---------- 静态双语文案：默认英文，中文界面切换 ---------- */
[lang="zh"] { display: none; }
html.is-zh [lang="en"] { display: none; }
html.is-zh [lang="zh"] { display: inline; }
/* 块级语境下保持原有布局（如 <br> 换行） */
html.is-zh [lang="zh"] br { display: inline; }
/* 防御：双语文案强制横向书写，杜绝任何环境下字符被竖向排列 */
[lang="en"], [lang="zh"] { writing-mode: horizontal-tb !important; }

/* ---------- 直接联系卡片（取代询盘表单） ---------- */
.dcontact { display:flex; align-items:center; gap:14px; text-decoration:none; color:var(--ink); background:#fff; border:1px solid var(--line); border-radius:var(--r-lg); padding:14px 16px; margin-bottom:12px; transition:border-color .18s, box-shadow .18s, transform .18s; }
.dcontact:hover { border-color:var(--brand); box-shadow:var(--sh-sm); transform:translateY(-1px); }
.dcontact:last-child { margin-bottom:0; }
.dcontact .dc-ic { flex:0 0 auto; width:44px; height:44px; border-radius:12px; display:grid; place-items:center; color:#fff; }
.dcontact .dc-ic svg { width:24px; height:24px; }
.dcontact .dc-tx { display:flex; flex-direction:column; line-height:1.2; min-width:0; }
.dcontact .dc-tx b { font-size:.82rem; font-weight:600; color:var(--muted); }
.dcontact .dc-tx i { font-style:normal; font-size:1rem; font-weight:600; color:var(--ink); margin-top:2px; word-break:break-all; }
.dcontact .dc-go { margin-left:auto; color:var(--muted); font-size:1.1rem; }
.dcontact-wa .dc-ic { background:#25D366; }
.dcontact-mail .dc-ic { background:#0b6bcb; }
.dcontact-phone .dc-ic { background:#0b2d4a; }