/* 燃气云站点样式 · 能源工业风
   配色取自品牌标识：深蓝主结构，品牌蓝交互，品牌绿强调 */

:root {
  --ink-900: #071A2F;
  --ink-800: #0B2340;
  --ink-700: #143758;
  --brand-700: #0F5694;
  --brand-600: #1668B3;
  --brand-500: #2E86D1;
  --brand-100: #E4F0FA;
  --brand-050: #F2F8FD;
  --leaf-700: #3F6E1F;
  --leaf-600: #568F2C;
  --leaf-500: #6BB33F;
  --leaf-100: #EDF6E4;

  --gray-700: #3D4854;
  --gray-600: #55616D;
  --gray-500: #67737F;
  --gray-400: #98A3AE;
  --gray-300: #B9C2CB;
  --gray-200: #DDE3E9;
  --gray-100: #F2F5F8;
  --gray-050: #F8FAFB;

  --radius: 4px;
  --wrap: 1200px;
  --font: "PingFang SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

.ic { display: inline-block; vertical-align: -3px; flex: none; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--gray-700);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: fixed; top: 8px; left: 8px; z-index: 100;
  padding: 9px 14px; background: #fff; color: var(--ink-900);
  transform: translateY(-150%); transition: transform .18s;
}
.skip-link:focus { transform: none; }
#main { scroll-margin-top: 76px; }

a { color: var(--brand-600); text-decoration: none; }
a:hover { color: var(--brand-700); }

img { max-width: 100%; display: block; }

h1, h2, h3, h4 { color: var(--ink-700); line-height: 1.35; margin: 0 0 16px; font-weight: 700; }
h1 { font-size: 40px; letter-spacing: -.025em; text-wrap: balance; }
h2 { font-size: 28px; }
h3 { font-size: 20px; }
p { margin: 0 0 16px; }

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

/* 页头 */
.hd {
  position: sticky; top: 0; z-index: 50;
  background: var(--ink-900);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.hd .wrap { display: flex; align-items: center; gap: 32px; height: 64px; }
.hd .logo { display: flex; align-items: center; gap: 10px; }
.hd .logo img { height: 30px; width: auto; }
.hd nav { display: flex; gap: 4px; margin-left: 8px; flex: 1; }
.hd nav a {
  color: rgba(255,255,255,.82); padding: 8px 14px; border-radius: 2px;
  font-size: 15px;
}
.hd nav a:hover { color: #fff; background: rgba(255,255,255,.08); }
.hd nav a.on { color: #fff; background: rgba(255,255,255,.14); }
.hd .nav-drop { position: relative; }
.hd .nav-trigger {
  display: flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 2px;
  color: rgba(255,255,255,.82); font: inherit; font-size: 15px; cursor: pointer; user-select: none;
  border: 0; background: transparent;
}
.hd .nav-trigger svg { transition: transform .2s; opacity: .7; }
.hd .nav-drop:hover .nav-trigger, .hd .nav-trigger.on { color: #fff; background: rgba(255,255,255,.1); }
.hd .nav-drop:hover .nav-trigger svg { transform: rotate(180deg); }
.drop-panel {
  display: none; position: absolute; top: calc(100% + 6px); left: 0; z-index: 60;
  background: #fff; border: 1px solid var(--gray-200); border-radius: 3px;
  box-shadow: 0 16px 40px rgba(7,26,47,.16);
  padding: 24px 26px; gap: 36px;
  grid-template-columns: repeat(3, minmax(170px, 1fr));
}
.drop-panel::before { content: ""; position: absolute; top: -8px; left: 0; right: 0; height: 8px; }
.hd .nav-drop:hover .drop-panel, .hd .nav-drop:focus-within .drop-panel,
.hd .nav-trigger[aria-expanded="true"] + .drop-panel { display: grid; }
.drop-panel-1 { grid-template-columns: minmax(230px, 1fr); }
.drop-col { min-width: 170px; }
.hd nav .drop-head {
  display: block; font-weight: 700; color: var(--ink-700); font-size: 15px;
  margin-bottom: 10px; padding: 0 0 9px; border-bottom: 1px solid var(--gray-200); white-space: nowrap;
}
.hd nav .drop-head:hover { color: var(--brand-600); background: none; }
.hd nav .drop-item { display: block; color: var(--gray-600); font-size: 14px; padding: 5px 0; white-space: nowrap; }
/* 二级菜单项前导小箭头 */
#industryMenu > .drop-col > a.drop-item::before,
#solutionMenu > .drop-col > a.drop-item::before {
  content: ""; display: inline-block; flex: none;
  width: 11px; height: 11px; margin-right: 8px; vertical-align: -1px;
  background-color: currentColor; opacity: .42;
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 5l7 7-7 7'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 5l7 7-7 7'/%3E%3C/svg%3E");
  -webkit-mask-size: contain; mask-size: contain;
  -webkit-mask-repeat: no-repeat; mask-repeat: no-repeat;
  transition: opacity .18s, transform .18s;
}
#industryMenu > .drop-col > a.drop-item:hover::before,
#solutionMenu > .drop-col > a.drop-item:hover::before { opacity: .8; transform: translateX(2px); }
.hd nav .drop-item:hover { color: var(--brand-600); background: none; }
.hd .menu-btn { display: none; background: none; border: 1px solid rgba(255,255,255,.25); border-radius: 2px; color: #fff; padding: 7px; cursor: pointer; line-height: 0; }
.hd .menu-btn:hover { background: rgba(255,255,255,.1); }

.btn {
  display: inline-block; padding: 10px 22px; border-radius: 2px;
  font-size: 15px; font-weight: 600; border: 1px solid transparent;
  cursor: pointer; transition: .18s;
}
.btn-primary { background: var(--brand-600); color: #fff; }
.btn-primary:hover { background: var(--brand-700); color: #fff; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .65; cursor: wait; }
.btn-ghost { border-color: rgba(255,255,255,.35); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.1); color: #fff; }
.btn-line { border-color: var(--gray-300); color: var(--ink-700); background: #fff; }
.btn-line:hover { border-color: var(--brand-600); color: var(--brand-600); }
.btn-sm { padding: 7px 16px; font-size: 14px; }

/* 首屏 */
.hero {
  background: linear-gradient(160deg, var(--ink-900) 0%, var(--ink-800) 55%, var(--ink-700) 100%);
  color: #fff; padding: 88px 0 64px; position: relative; overflow: hidden;
}
.hero-img { background-size: cover; background-position: center right; }
.hero-img::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(7,26,47,.97) 0%, rgba(7,26,47,.9) 42%, rgba(11,35,64,.52) 100%);
}
.hero::after {
  content: ""; position: absolute; right: -120px; top: -80px; width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(46,134,209,.22), transparent 65%);
}
.hero h1 { color: #fff; font-size: clamp(27px, 4.2vw, 46px); max-width: 780px; }
.hero .sub { color: rgba(255,255,255,.78); font-size: 18px; max-width: 720px; margin-bottom: 32px; }
.hero .cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 56px; }
.hero .wrap { position: relative; z-index: 1; }
.hero .badges { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.hero .badge-ind { background: rgba(255,255,255,.15); border-color: rgba(255,255,255,.24); color: #fff; }
.hero .badge-dom { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.18); color: rgba(255,255,255,.85); }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; position: relative; z-index: 1; }
.hero-stats .stat {
  position: relative;
  background: linear-gradient(160deg, rgba(9,28,50,.72), rgba(7,22,40,.62));
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 6px;
  padding: 24px 26px 22px;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: background .25s ease, border-color .25s ease, transform .25s ease;
}
.hero-stats .stat:hover { border-color: rgba(107,179,63,.6); background: linear-gradient(160deg, rgba(12,36,62,.82), rgba(7,22,40,.7)); transform: translateY(-3px); }
@media (prefers-reduced-motion: reduce) { .hero-stats .stat:hover { transform: none; } }
.hero-stats b { display: block; font-size: 48px; font-family: var(--mono); font-weight: 700; color: #fff; line-height: 1.05; margin-bottom: 8px; letter-spacing: -1px; }
.hero-stats b em { font-style: normal; font-size: 17px; color: var(--leaf-500); margin-left: 5px; letter-spacing: 0; }
.hero-stats .stat-label { color: rgba(255,255,255,.66); font-size: 14.5px; }
.stat-ico {
  position: absolute; top: 20px; right: 20px;
  width: 38px; height: 38px; border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.1); color: #fff;
}
.stat-ico.s-green { background: linear-gradient(148deg, rgba(124,199,77,.9), rgba(76,143,38,.9)); }
.stat-ico.s-blue { background: linear-gradient(148deg, rgba(67,155,226,.9), rgba(20,98,171,.9)); }
.stat-ico.s-amber { background: linear-gradient(148deg, rgba(237,180,79,.9), rgba(192,124,28,.9)); }
.stat-ico.s-indigo { background: linear-gradient(148deg, rgba(123,138,224,.9), rgba(66,80,168,.9)); }
@media (max-width: 980px) { .hero-stats b { font-size: 40px; } .stat-ico { width: 32px; height: 32px; top: 16px; right: 16px; } }

.hero-facts {
  display: flex; flex-wrap: wrap; gap: 10px 28px; padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,.18); color: rgba(255,255,255,.68);
  font-size: 14px; font-variant-numeric: tabular-nums;
}
.hero-facts span { white-space: nowrap; }
.hero-facts b { color: #fff; font-size: 20px; margin-right: 4px; }
.hero-compact { padding: 44px 0 36px; }
.hero-compact .sub { margin-bottom: 0; }

/* 通用区块 */
.sec { padding: 72px 0; }
.sec-alt { background: var(--gray-050); border-top: 1px solid var(--gray-200); border-bottom: 1px solid var(--gray-200); }
.sec-dark { background: var(--ink-900); color: rgba(255,255,255,.8); }
.sec-ink { background: linear-gradient(165deg, var(--ink-900) 0%, var(--ink-800) 100%); color: rgba(255,255,255,.78); }
.sec-ink .sec-hd h2 { color: #fff; }
.sec-ink .sec-hd p { color: rgba(255,255,255,.55); }
.sec-ink .sec-hd .kicker { color: var(--leaf-500); }
.sec-dark h2, .sec-dark h3 { color: #fff; }
.sec-hd { margin-bottom: 40px; }
.sec-hd .kicker {
  display: inline-block; font-size: 13px; font-weight: 600; color: var(--leaf-600);
  letter-spacing: 2px; margin-bottom: 10px;
}
.sec-hd h2 { font-size: 30px; margin-bottom: 10px; }
.sec-hd p { color: var(--gray-500); max-width: 760px; margin: 0; }

.grid { display: grid; gap: 20px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }

/* 卡片 */
.card {
  background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius);
  padding: 26px 26px 22px; display: flex; flex-direction: column;
  transition: border-color .18s, transform .24s cubic-bezier(.22,.61,.36,1);
}
.card:hover { border-color: var(--brand-500); transform: translateY(-3px); }
@media (prefers-reduced-motion: reduce) { .card:hover { transform: none; } }
.card-em { border-left: 3px solid var(--brand-600); }
.card-em:hover { border-left-color: var(--brand-700); }
.card h3 { font-size: 18px; margin-bottom: 10px; }
.card p { color: var(--gray-500); font-size: 15px; margin-bottom: 16px; }
.card .more { margin-top: auto; font-size: 14px; font-weight: 600; color: var(--brand-600); }
.card-link { color: inherit; display: block; }
.card-link:hover { color: inherit; }
.card-link:hover h3 { color: var(--brand-600); }
.card-link:focus-visible { outline: 3px solid rgba(46,134,209,.4); outline-offset: 3px; }

/* 领域卡 */
.industry-card { padding: 0; overflow: hidden; }
.industry-card .thumb { height: 150px; overflow: hidden; }
.industry-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.industry-card:hover .thumb img { transform: scale(1.04); }
.industry-card .top { padding: 22px 28px 18px; background: linear-gradient(150deg, var(--ink-800), var(--ink-700)); color: #fff; }
.industry-card .top h3 { color: #fff; font-size: 22px; margin-bottom: 8px; }
.industry-card .top p { color: rgba(255,255,255,.72); font-size: 14px; margin: 0; }
.industry-card .top.top-light { background: #fff; color: var(--ink-700); }
.industry-card .top.top-light h3 { color: var(--ink-700); }
.industry-card .top.top-light h3 .ic { color: var(--brand-600); }
.industry-card .top.top-light p { color: var(--gray-500); }
.industry-card .body { padding: 22px 28px 26px; }
.industry-card .chain { align-content: flex-start; }
.chain { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; }
.chain span { font-size: 12px; color: var(--brand-700); background: var(--brand-050); border: 1px solid var(--brand-100); padding: 3px 9px; border-radius: 2px; }
.pain-list { list-style: none; padding: 0; margin: 0 0 18px; }
.pain-list li {
  position: relative; padding-left: 16px; margin-bottom: 8px;
  font-size: 14.5px; color: var(--gray-600);
}
.pain-list li::before {
  content: ""; position: absolute; left: 0; top: 10px; width: 6px; height: 6px;
  background: var(--leaf-500); border-radius: 1px;
}
.meta-row { display: flex; gap: 16px; font-size: 13px; color: var(--gray-500); border-top: 1px dashed var(--gray-200); padding-top: 14px; }
.meta-row b { color: var(--brand-600); font-family: var(--mono); }
.industry-card .meta-row .more { margin-left: auto; color: var(--brand-600); font-weight: 600; }

/* 场景卡 */
.scene {
  background: #fff; border: 1px solid var(--gray-200); border-left: 3px solid var(--brand-600);
  border-radius: var(--radius); padding: 24px 26px; scroll-margin-top: 90px;
  display: grid; grid-template-columns: 232px 1fr; gap: 28px; align-items: start;
}
.scene-rev { grid-template-columns: 1fr 232px; }
.scene-rev .scene-media { order: 2; }
.scene-media img {
  width: 100%; aspect-ratio: 1 / 1; object-fit: cover; display: block;
  border-radius: 3px; border: 1px solid var(--gray-200); background: var(--gray-050);
}
.scene h3 { font-size: 19px; margin-bottom: 6px; }
.scene .who { font-size: 13px; color: var(--gray-500); margin-bottom: 14px; }
.scene .tag { display: inline-block; font-size: 12px; color: var(--leaf-700); background: var(--leaf-100); padding: 2px 9px; border-radius: 2px; margin-left: 8px; vertical-align: 2px; }
.scene .blk { margin-top: 14px; }
.scene .blk h4 { font-size: 14px; color: var(--gray-500); font-weight: 600; margin: 0 0 6px; letter-spacing: .5px; }
.scene .blk ul { margin: 0; padding-left: 18px; }
.scene .blk li { font-size: 14.5px; color: var(--gray-600); margin-bottom: 4px; }
.scene .pl { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--gray-200); }
.scene .pl a { font-size: 13px; border: 1px solid var(--gray-200); border-radius: 2px; padding: 4px 11px; color: var(--gray-600); }
.scene .pl a:hover { border-color: var(--brand-600); color: var(--brand-600); }

/* 产品卡 */
.product-card { padding: 22px 22px 18px; }
.product-card .badges { display: flex; gap: 6px; margin-bottom: 12px; flex-wrap: wrap; }
.badge { font-size: 12px; padding: 2px 8px; border-radius: 2px; border: 1px solid; }
.badge-ind { color: var(--brand-700); border-color: var(--brand-100); background: var(--brand-050); }
.badge-dom { color: var(--gray-600); border-color: var(--gray-200); background: var(--gray-050); }
.product-card .headline { color: var(--ink-700); font-weight: 700; font-size: 16px; margin-bottom: 6px; }
.product-card .desc { font-size: 14px; color: var(--gray-600); margin-bottom: 0; }

/* 产品卡结构：图标加名称、标签、一句话介绍 */
.product-card .pc-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.product-card .pc-name { margin: 0; font-size: 16.5px; font-weight: 700; color: var(--ink-700); line-height: 1.45; }
.product-card:hover .pc-name { color: var(--brand-600); }
.product-card .pc-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.product-card .pc-tag {
  font-size: 12px; color: var(--gray-500); background: var(--gray-050);
  border: 1px solid var(--gray-200); border-radius: 2px; padding: 2px 8px;
}
.product-card .pc-tag-dom { color: var(--brand-700); background: var(--brand-050); border-color: var(--brand-100); }
.product-card .pc-desc { margin: 0 0 16px; font-size: 14.5px; color: var(--gray-600); }

/* 产品卡图标 */
.pc-ico {
  display: inline-flex; align-items: center; justify-content: center; flex: none;
  width: 36px; height: 36px; border-radius: 4px; color: #fff;
  transition: transform .24s cubic-bezier(.22,.61,.36,1), filter .24s;
}
.pc-ico.g-green { background: linear-gradient(148deg, #7CC74D 0%, #4C8F26 100%); box-shadow: 0 3px 10px rgba(76,143,38,.24); }
.pc-ico.g-green2 { background: linear-gradient(148deg, #4FC08A 0%, #1E8A5C 100%); box-shadow: 0 3px 10px rgba(30,138,92,.24); }
.pc-ico.g-blue { background: linear-gradient(148deg, #439BE2 0%, #1462AB 100%); box-shadow: 0 3px 10px rgba(20,98,171,.24); }
.pc-ico.g-blue2 { background: linear-gradient(148deg, #3AB4D9 0%, #0F7C9E 100%); box-shadow: 0 3px 10px rgba(15,124,158,.24); }
.pc-ico.g-amber { background: linear-gradient(148deg, #EDB44F 0%, #C07C1C 100%); box-shadow: 0 3px 10px rgba(192,124,28,.24); }
.pc-ico.g-amber2 { background: linear-gradient(148deg, #E8924A 0%, #BC6418 100%); box-shadow: 0 3px 10px rgba(188,100,24,.24); }
.pc-ico.g-indigo { background: linear-gradient(148deg, #7B8AE0 0%, #4250A8 100%); box-shadow: 0 3px 10px rgba(66,80,168,.24); }
.pc-ico.g-indigo2 { background: linear-gradient(148deg, #9B7BE0 0%, #5E42A8 100%); box-shadow: 0 3px 10px rgba(94,66,168,.24); }
.card:hover .pc-ico { filter: brightness(1.08); transform: translateY(-2px); }
.product-card .badges { align-items: center; gap: 8px; }
.pd-hero h1 { display: flex; align-items: center; gap: 14px; }
.pd-hero h1 .pc-ico { width: 50px; height: 50px; }

/* 图标块 */
.ico-card { display: flex; gap: 16px; align-items: flex-start; }
.ico-box {
  width: 48px; height: 48px; flex: none; border-radius: 4px;
  background: var(--brand-050); border: 1px solid var(--brand-100);
  color: var(--brand-600); display: flex; align-items: center; justify-content: center;
  transition: transform .25s ease;
}
.ico-box.leaf { background: var(--leaf-100); border-color: #d8ecc6; color: var(--leaf-700); }
.ico-box.g-green { background: linear-gradient(148deg, #7CC74D 0%, #4C8F26 100%); border-color: transparent; color: #fff; box-shadow: 0 4px 12px rgba(76,143,38,.22); }
.ico-box.g-blue { background: linear-gradient(148deg, #439BE2 0%, #1462AB 100%); border-color: transparent; color: #fff; box-shadow: 0 4px 12px rgba(20,98,171,.22); }
.ico-box.g-amber { background: linear-gradient(148deg, #EDB44F 0%, #C07C1C 100%); border-color: transparent; color: #fff; box-shadow: 0 4px 12px rgba(192,124,28,.22); }
.ico-box.g-indigo { background: linear-gradient(148deg, #7B8AE0 0%, #4250A8 100%); border-color: transparent; color: #fff; box-shadow: 0 4px 12px rgba(66,80,168,.22); }
.ico-box.g-sky { background: linear-gradient(148deg, #4FC3F7 0%, #0277B6 100%); border-color: transparent; color: #fff; box-shadow: 0 4px 12px rgba(2,119,182,.22); }
.ico-box.g-violet { background: linear-gradient(148deg, #A78BFA 0%, #7239D8 100%); border-color: transparent; color: #fff; box-shadow: 0 4px 12px rgba(114,57,216,.22); }
.ico-box.g-teal { background: linear-gradient(148deg, #2DD4BF 0%, #0C8E83 100%); border-color: transparent; color: #fff; box-shadow: 0 4px 12px rgba(12,142,131,.22); }
.ico-box.g-slate { background: linear-gradient(148deg, #8FA3B8 0%, #3F5266 100%); border-color: transparent; color: #fff; box-shadow: 0 4px 12px rgba(63,82,102,.24); }
.ico-card:hover .ico-box { transform: translateY(-2px); }
.sec-ink .ico-box { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.14); color: var(--leaf-500); }
.ico-card h3 { font-size: 17px; margin-bottom: 6px; }
.ico-card p { margin: 0; font-size: 14.5px; }

/* 能力域分组标题 */
.domain-hd { display: flex; align-items: center; gap: 12px; font-size: 18px; margin: 38px 0 18px; }
.domain-hd .ico-box { width: 34px; height: 34px; border-radius: 3px; box-shadow: none; }
.domain-hd .n { font-size: 13px; color: var(--gray-400); font-weight: 400; }

/* 筛选 */
.filter { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 28px; }
.filter .lbl { font-size: 14px; color: var(--gray-500); margin-right: 2px; }
.chip {
  font-size: 14px; padding: 6px 14px; border: 1px solid var(--gray-200); border-radius: 2px;
  background: #fff; color: var(--gray-600); cursor: pointer;
}
.chip:hover { border-color: var(--brand-500); color: var(--brand-600); }
.chip.on { background: var(--ink-800); border-color: var(--ink-800); color: #fff; }
.filter-sep { width: 1px; height: 22px; background: var(--gray-200); margin: 0 6px; }
.product-index { padding-top: 32px; }
.chip:focus-visible, .btn:focus-visible, .nav-trigger:focus-visible,
.menu-btn:focus-visible, a:focus-visible { outline: 3px solid rgba(46,134,209,.45); outline-offset: 2px; }
.filter-count { min-height: 24px; margin: -10px 0 0; color: var(--gray-600); font-size: 14px; }
.empty-state { margin: 34px 0; padding: 34px; background: var(--gray-050); border-left: 3px solid var(--brand-600); }
.empty-state h2 { font-size: 20px; margin-bottom: 6px; }
.empty-state p { margin: 0; color: var(--gray-600); }
[hidden] { display: none !important; }

/* 分组标题 */
.group-hd { display: flex; align-items: baseline; gap: 12px; margin: 44px 0 20px; padding-bottom: 12px; border-bottom: 1px solid var(--gray-200); }
.group-hd h3 { font-size: 19px; margin: 0; }
.group-hd .n { font-size: 13px; color: var(--gray-400); font-family: var(--mono); }
.group-hd .link { margin-left: auto; font-size: 14px; font-weight: 600; }

/* 表格 */
table.spec { width: 100%; border-collapse: collapse; font-size: 14.5px; }
table.spec th, table.spec td { border: 1px solid var(--gray-200); padding: 9px 14px; text-align: left; }
table.spec th { background: var(--gray-050); color: var(--ink-700); font-weight: 600; width: 180px; }
table.spec td { color: var(--gray-600); }

/* 产品详情 */
.crumb { font-size: 13px; color: var(--gray-400); padding: 20px 0 0; }
.crumb a { color: var(--gray-500); }
.pd-hero { padding: 28px 0 48px; border-bottom: 1px solid var(--gray-200); }
.pd-hero-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 48px; align-items: center; }
.pd-hero-img { border-radius: var(--radius); overflow: hidden; aspect-ratio: 4 / 3; border: 1px solid var(--gray-200); }
.pd-hero-img img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 900px) {
  .pd-hero-grid { grid-template-columns: 1fr; gap: 24px; }
  .pd-hero-img { display: none; }
}
.pd-hero .badges { display: flex; gap: 8px; margin-bottom: 16px; }
.pd-hero h1 { font-size: clamp(26px, 3.4vw, 38px); margin-bottom: 12px; }
.pd-hero .lede { font-size: 17px; color: var(--gray-600); max-width: 760px; margin-bottom: 28px; }
.pd-sec { padding: 56px 0; border-bottom: 1px solid var(--gray-100); }
.pd-sec:last-child { border-bottom: 0; }
.pd-sec-alt { background: var(--gray-050); }
/* 咨询与留言：浅色底，与深色页脚区分 */
.consultation { background: var(--brand-050); border-top: 1px solid var(--brand-100); }
.consultation .form-status { color: var(--brand-700); }
.pd-sec .wrap { display: grid; grid-template-columns: 200px 1fr; gap: 40px; }
.pd-sec .side h2 { font-size: 17px; color: var(--gray-500); font-weight: 600; }
.pd-sec .side .no { display: block; font-family: var(--mono); font-size: 13px; color: var(--brand-500); margin-bottom: 6px; }
.pd-sec .body h3 { font-size: 16px; }
.num-list { list-style: none; padding: 0; margin: 0; }
.num-list li { display: grid; grid-template-columns: 34px 1fr; gap: 12px; padding: 12px 0; border-bottom: 1px dashed var(--gray-200); font-size: 15.5px; }
.num-list li:last-child { border-bottom: 0; }
.num-list .n { font-family: var(--mono); color: var(--brand-500); font-size: 14px; padding-top: 3px; }
.selection-guide { background: #fff; }
.check-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 24px; list-style: none; padding: 0; margin: 20px 0; }
.check-list li { position: relative; padding: 10px 12px 10px 32px; background: var(--gray-050); color: var(--gray-600); }
.check-list li::before { content: ""; position: absolute; left: 13px; top: 17px; width: 7px; height: 7px; background: var(--leaf-500); }
.scope-note { border-left: 3px solid var(--brand-600); padding: 10px 0 10px 16px; color: var(--gray-600); }
.fig-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.fig-grid figure { margin: 0; border: 1px solid var(--gray-200); border-radius: var(--radius); overflow: hidden; background: var(--gray-050); }
.fig-grid img { width: 100%; height: 230px; object-fit: contain; background: #fff; }
.fig-grid figcaption { font-size: 13px; color: var(--gray-500); padding: 10px 14px; border-top: 1px solid var(--gray-200); }
.note { font-size: 13px; color: var(--gray-500); margin-top: 14px; }

/* 方案详情：挑战卡片、概述两栏、模块网格 */
.challenge-grid { display: grid; gap: 14px; }
.challenge-card {
  display: flex; gap: 18px; align-items: flex-start;
  background: #fff; border: 1px solid var(--gray-200); border-left: 3px solid #C2703A;
  border-radius: var(--radius); padding: 20px 24px;
}
.ch-icon {
  width: 32px; height: 32px; flex: none; border-radius: 4px; margin-top: 1px;
  background: #FDF1E7; color: #C2703A;
  display: flex; align-items: center; justify-content: center;
}
.challenge-card p { margin: 0; font-size: 16px; color: var(--ink-700); }

.sol-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.sol-figure {
  border-radius: var(--radius); overflow: hidden; border: 1px solid var(--gray-200);
  aspect-ratio: 16 / 11; background: var(--gray-050);
}
.sol-figure img { width: 100%; height: 100%; object-fit: cover; }

.mod-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.mod-card {
  background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius);
  padding: 24px 26px;
  transition: border-color .2s, transform .24s cubic-bezier(.22,.61,.36,1), box-shadow .24s;
}
.mod-card:hover { border-color: var(--brand-500); transform: translateY(-3px); box-shadow: 0 10px 26px rgba(7,26,47,.07); }
.mod-ico {
  width: 44px; height: 44px; border-radius: 5px; margin-bottom: 16px;
  background: var(--brand-050); border: 1px solid var(--brand-100); color: var(--brand-600);
  display: flex; align-items: center; justify-content: center;
  transition: background .2s, color .2s, border-color .2s;
}
.mod-card:hover .mod-ico { background: var(--brand-600); border-color: var(--brand-600); color: #fff; }
.mod-card h4 { margin: 0 0 8px; font-size: 17px; color: var(--ink-700); }
.mod-card p { margin: 0; font-size: 14.5px; color: var(--gray-600); line-height: 1.7; }

@media (max-width: 900px) {
  .sol-intro { grid-template-columns: 1fr; gap: 24px; }
  .mod-grid { grid-template-columns: 1fr; }
  .challenge-card { gap: 14px; padding: 18px 20px; }
}

/* 产品详情：痛点、能力、场景、标准 */
.pain-grid { display: grid; gap: 14px; }
.pain-card {
  display: flex; gap: 20px; align-items: baseline;
  background: #fff; border: 1px solid var(--gray-200); border-left: 3px solid #C2703A;
  border-radius: var(--radius); padding: 20px 24px;
}
.pain-n { font: 700 20px/1.2 var(--mono); color: #C2703A; flex: none; letter-spacing: -.5px; }
.pain-card p { margin: 0; font-size: 16px; color: var(--ink-700); }

.cap-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.cap-card {
  display: flex; gap: 14px; align-items: flex-start;
  background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius);
  padding: 18px 22px; transition: border-color .2s, transform .22s ease;
}
.cap-card:hover { border-color: var(--leaf-500); transform: translateY(-2px); }
.cap-ico {
  width: 26px; height: 26px; flex: none; border-radius: 50%; margin-top: 1px;
  background: var(--leaf-100); color: var(--leaf-700);
  display: flex; align-items: center; justify-content: center;
}
.cap-card p { margin: 0; font-size: 15.5px; color: var(--gray-700); }

.scene-chips { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.scene-chip {
  background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius);
  padding: 20px 22px; display: flex; gap: 12px; align-items: flex-start;
}
.chip-ico {
  width: 28px; height: 28px; flex: none; border-radius: 3px;
  background: var(--brand-050); border: 1px solid var(--brand-100); color: var(--brand-600);
  display: flex; align-items: center; justify-content: center;
}
.scene-chip p { margin: 0; font-size: 15.5px; color: var(--gray-700); }

.std-card {
  display: flex; gap: 16px; align-items: flex-start;
  background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius);
  padding: 22px 26px; max-width: 760px;
}
.std-ico {
  width: 36px; height: 36px; flex: none; border-radius: 4px;
  background: linear-gradient(148deg, #7CC74D 0%, #4C8F26 100%); color: #fff;
  display: flex; align-items: center; justify-content: center;
}
.std-card p { margin: 0; font-size: 15.5px; color: var(--gray-700); line-height: 1.7; }

/* 产品要点列表 */
.note-list { list-style: none; padding: 0; margin: 0 0 22px; display: grid; gap: 10px; }
.note-list li {
  display: grid; grid-template-columns: 190px 1fr; gap: 16px; align-items: baseline;
  background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius);
  padding: 14px 20px;
}
.note-list strong { color: var(--ink-700); font-size: 15px; }
.note-list span { color: var(--gray-600); font-size: 14.5px; }
@media (max-width: 900px) { .note-list li { grid-template-columns: 1fr; gap: 4px; } }

/* 规格表斑马纹 */
table.spec tbody tr:nth-child(even) td { background: var(--gray-050); }

@media (max-width: 900px) {
  .cap-grid, .scene-chips { grid-template-columns: 1fr; }
  .pain-card { gap: 14px; padding: 18px 20px; }
}

/* 方案卡右上角模糊过渡图 */
.solution-card { position: relative; overflow: hidden; }
.solution-card > * { position: relative; z-index: 1; }
.sol-bg {
  position: absolute; top: 0; right: 0; width: 64%; height: 100%; z-index: 0;
  background-size: cover; background-position: center 35%;
  filter: blur(1.8px) saturate(.92) contrast(1.06);
  opacity: .66;
  -webkit-mask-image: linear-gradient(112deg, transparent 30%, rgba(0,0,0,.5) 62%, #000 95%);
  mask-image: linear-gradient(112deg, transparent 30%, rgba(0,0,0,.5) 62%, #000 95%);
  transition: opacity .3s ease, filter .3s ease;
  pointer-events: none;
}
.solution-card:hover .sol-bg { opacity: .82; filter: blur(1.2px) saturate(1); }

/* 选型比较：同族产品链接 */
.family-card .fam-links { display: flex; flex-direction: column; gap: 8px; margin-top: auto; padding-top: 6px; }
.fam-link {
  display: flex; align-items: center; gap: 11px;
  padding: 11px 14px; border: 1px solid var(--gray-200); border-radius: 3px;
  background: #fff; color: var(--gray-700); font-size: 14px;
  transition: border-color .18s, color .18s, background .18s, transform .18s, box-shadow .18s;
}
.fam-link:hover {
  border-color: var(--brand-600); color: var(--brand-600);
  background: var(--brand-050); transform: translateX(3px);
  box-shadow: 0 3px 12px rgba(22, 104, 179, .1);
}
.fam-ico {
  width: 26px; height: 26px; flex: none; border-radius: 3px;
  background: var(--brand-050); border: 1px solid var(--brand-100); color: var(--brand-600);
  display: flex; align-items: center; justify-content: center;
  transition: background .18s, border-color .18s, color .18s;
}
.fam-link:hover .fam-ico { background: var(--brand-600); border-color: var(--brand-600); color: #fff; }
.fam-name { flex: 1; }
.fam-arrow { opacity: .22; transition: opacity .18s, transform .18s; }
.fam-link:hover .fam-arrow { opacity: 1; transform: translateX(2px); }

/* 方案卡片元信息 */
.sol-meta {
  display: flex; gap: 16px; margin-top: auto; padding-top: 14px;
  border-top: 1px dashed var(--gray-200); font-size: 13px; color: var(--gray-500);
}
.sol-meta b { color: var(--brand-600); font-family: var(--mono); margin-right: 3px; }

/* 方案 */
.solution-card .ch { font-size: 13px; color: var(--leaf-700); font-weight: 600; margin-bottom: 8px; letter-spacing: 1px; }
/* 描述文字压在模糊背景图上，加白色描边提升可读性 */
.solution-card p { text-shadow: 0 0 1px #fff, 0 0 2px rgba(255,255,255,.85), 0 0 3px rgba(255,255,255,.5); }
.mod-list { list-style: none; padding: 0; margin: 0; }
.mod-list li { border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 20px 22px; margin-bottom: 14px; background: #fff; }
.mod-list h4 { margin: 0 0 6px; font-size: 16px; color: var(--ink-700); }
.mod-list p { margin: 0; font-size: 14.5px; color: var(--gray-500); }
.delivery-path { background: var(--gray-050); }
.phase-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.phase-list li { background: #fff; border-top: 3px solid var(--brand-600); padding: 20px; }
.phase-list li > span { font: 600 13px/1 var(--mono); color: var(--brand-600); }
.phase-list h4 { margin: 12px 0 6px; font-size: 16px; }
.phase-list p { margin: 0; font-size: 14px; color: var(--gray-600); }

/* 场景页 */
.sc-head {
  position: relative; color: rgba(255,255,255,.78);
  padding: 56px 0 48px; background-color: var(--ink-900);
  background-size: cover; background-position: center 42%;
}
.sc-head::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(6,22,40,.95) 0%, rgba(6,22,40,.88) 40%, rgba(9,27,48,.5) 100%);
}
.sc-head .wrap { position: relative; z-index: 1; }
.sc-head h1 { color: #fff; font-size: 36px; margin-bottom: 12px; }
/* 场景页头部不显示场景图标 */
#main > section.sc-head > div > h1 > span > svg,
.sc-head h1 > .sc-ico { display: none; }
.sc-head .meta { display: flex; flex-wrap: wrap; gap: 20px; font-size: 14px; color: rgba(255,255,255,.6); margin-top: 18px; }
.sc-head .meta b { color: #fff; font-weight: 600; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.panel { background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 26px 28px; }
.panel.warn { border-top: 3px solid var(--brand-600); }
.panel.solve { border-top: 3px solid var(--leaf-500); }
.panel h3 { font-size: 17px; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.panel ul { margin: 0; padding-left: 18px; }
.panel li { margin-bottom: 8px; color: var(--gray-600); }

/* 表单 */
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; max-width: 720px; }
.form label { font-size: 14px; color: var(--gray-600); display: block; margin-bottom: 6px; }
.form .full { grid-column: 1 / -1; }
.form input, .form select, .form textarea {
  width: 100%; border: 1px solid var(--gray-300); border-radius: 2px; padding: 10px 12px;
  font-size: 15px; font-family: var(--font); color: var(--gray-700); background: #fff;
}
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid var(--brand-100); border-color: var(--brand-500); }
.form .hint { font-size: 13px; color: var(--gray-400); }
/* 深色底表单 */
.form.form-dark label { color: rgba(255,255,255,.74); }
.form.form-dark .hint { color: rgba(255,255,255,.5); }
.form.form-dark input, .form.form-dark select, .form.form-dark textarea { border-color: rgba(255,255,255,.2); }
.form-action { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.form-status { max-width: 460px; font-size: 13px; color: #fff; }
.consultation { scroll-margin-top: 64px; }
.contact-fallback p { color: rgba(255,255,255,.75); max-width: 650px; }
.contact-fallback .btn { margin-right: 18px; }
.text-link-light { color: #fff; font-weight: 600; }
.text-link-light:hover { color: #fff; text-decoration: underline; }
.contact-form { grid-template-columns: 1fr; }
.privacy-note { color: var(--gray-600); font-size: 14px; }
.contact-callout { border-left: 3px solid var(--brand-600); background: #fff; padding: 28px 30px; }
.contact-callout strong { display: block; color: var(--gray-600); margin-bottom: 6px; }
.contact-callout a { display: block; font: 700 28px/1.3 var(--mono); margin-bottom: 8px; }
.contact-callout p { color: var(--gray-600); margin: 0; }

/* 页脚 */
.ft { background: var(--ink-900); color: rgba(255,255,255,.62); padding: 56px 0 28px; font-size: 14px; }
.ft .cols { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 40px; justify-items: center; }
.ft h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.ft a { display: block; color: rgba(255,255,255,.62); margin-bottom: 8px; }
.ft a:hover { color: #fff; }
.ft .brand { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.ft .brand img { height: 26px; }
.ft .bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 22px; display: flex; justify-content: space-between; font-size: 13px; color: rgba(255,255,255,.4); }
.ft .bottom a, .ft a.icp-link { display: inline; margin-bottom: 0; color: rgba(255,255,255,.5); }
.ft .bottom a:hover, .ft a.icp-link:hover { color: #fff; }

/* 咨询悬浮 */
.fab {
  position: fixed; right: 24px; bottom: 24px; z-index: 60;
  background: var(--brand-600); color: #fff; padding: 12px 20px; border-radius: 2px;
  font-size: 15px; font-weight: 600; border: 0; cursor: pointer;
  display: flex; align-items: center; gap: 8px;
}
.fab-ic { width: 20px; height: 20px; display: block; filter: brightness(0) invert(1); }
.fab:hover { background: var(--brand-700); color: #fff; }
body.menu-open .fab { display: none; }

/* 数据条 */
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--gray-200); border: 1px solid var(--gray-200); }
.stat-row div { background: #fff; padding: 22px 24px; }
.stat-row b { display: block; font-size: 30px; font-family: var(--mono); color: var(--ink-700); }
.stat-row b em { font-style: normal; font-size: 15px; color: var(--leaf-600); }
.stat-row span { font-size: 14px; color: var(--gray-500); }

/* 场景图标 */
.sc-ico {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 3px; margin-right: 10px;
  background: var(--brand-050); border: 1px solid var(--brand-100);
  color: var(--brand-600); vertical-align: -9px;
}
#scene-{{slug}} .sc-ico { flex: none; }

/* 通用工具 */
.mt0 { margin-top: 0; }
.mb0 { margin-bottom: 0; }
.center { text-align: center; }
.cta-band {
  background: linear-gradient(120deg, var(--ink-800), var(--brand-700));
  color: #fff; border-radius: var(--radius); padding: 40px 44px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.cta-band h3 { color: #fff; font-size: 24px; margin-bottom: 6px; }
.cta-band p { color: rgba(255,255,255,.72); margin: 0; }

@media (max-width: 900px) {
  body.menu-open { overflow: hidden; }
  .hd .menu-btn { display: block; }
  .hd nav {
    display: none; position: fixed; top: 64px; left: 0; right: 0; bottom: 0;
    background: var(--ink-900); flex-direction: column; padding: 16px 20px; margin: 0;
    overflow-y: auto; z-index: 49;
  }
  .hd nav.open { display: flex; }
  .hd nav a { font-size: 17px; padding: 15px 14px; border-bottom: 1px solid rgba(255,255,255,.07); border-radius: 0; }
  .hd .nav-drop { width: 100%; }
  .hd .nav-trigger { font-size: 17px; padding: 15px 14px; border-bottom: 1px solid rgba(255,255,255,.07); }
  .hd .nav-trigger svg { display: none; }
  .drop-panel, .drop-panel-1, .hd .nav-drop:hover .drop-panel {
    display: none; position: static; background: transparent; border: 0; box-shadow: none;
    padding: 4px 0 8px; grid-template-columns: 1fr;
  }
  .hd .nav-trigger[aria-expanded="true"] + .drop-panel { display: block; }
  .drop-col { margin-bottom: 6px; }
  .hd nav .drop-head {
    color: rgba(255,255,255,.92); border-bottom: 0; margin: 8px 0 2px; padding: 6px 14px 6px 26px;
    font-size: 15px; white-space: normal;
  }
  .hd nav .drop-head:hover { color: #fff; }
  .hd nav .drop-item { color: rgba(255,255,255,.58); padding: 8px 14px 8px 42px; white-space: normal; font-size: 14.5px; }
  .hd nav .drop-item:hover { color: #fff; }
  .hd nav .drop-item { display: none; }
  .two-col { grid-template-columns: 1fr; gap: 20px; }
  .phase-list { grid-template-columns: 1fr; }
  .scene, .scene-rev { grid-template-columns: 1fr; gap: 18px; }
  .scene-rev .scene-media { order: 0; }
  .scene-media img { aspect-ratio: 16 / 9; }
}

@media (max-width: 980px) {
  .g4, .fig-grid { grid-template-columns: repeat(2, 1fr); }
  .g3 { grid-template-columns: repeat(2, 1fr); }
  .hero-stats, .stat-row { grid-template-columns: repeat(2, 1fr); }
  .pd-sec .wrap { grid-template-columns: 1fr; gap: 16px; }
  .pd-sec .side h2 { font-size: 15px; }
  .ft .cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  h1 { font-size: 30px; }
  .hero h1 { font-size: 32px; }
  .g2, .g3, .g4, .fig-grid { grid-template-columns: 1fr; }
  .form { grid-template-columns: 1fr; }
  .ft .cols { grid-template-columns: 1fr; }
  .cta-band { padding: 28px; }
  .hero { padding: 62px 0 44px; }
  .hero .cta { margin-bottom: 30px; }
  .hero-facts { gap: 10px 20px; }
  .hero-facts span { width: calc(50% - 10px); }
  .hero-compact { padding: 34px 0 30px; }
  .filter-sep { flex-basis: 100%; width: 100%; height: 1px; }
  .fab { right: 12px; bottom: max(12px, env(safe-area-inset-bottom)); padding: 10px 14px; font-size: 13px; gap: 6px; }
  .fab-ic { width: 17px; height: 17px; }
  .contact-fallback .btn { margin: 0 0 14px; display: block; width: fit-content; }
  .check-list { grid-template-columns: 1fr; }
}



#main > section > div > div.grid.g4 > div > h3 {
  margin-top: 10px;
}