/* 经典商务：窄顶栏 + Logo 栏 + 彩色通栏菜单 + 下方轮播。菜单不压图，可读性由实色菜单条保证。 */
:root { --head-h: 54px; --radius: 4px; --radius-lg: 6px; --wrap: 1240px; }
body { font-size: 15px; }

.topbar { background: var(--c-dark); color: var(--c-dark-ink); font-size: 13px; }
.topbar-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 36px; }
.topbar-note { margin: 0; opacity: .8; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topbar-r { display: flex; align-items: center; gap: 22px; }
.topbar-r > a { display: inline-flex; align-items: center; gap: 6px; opacity: .85; }
.topbar-r > a:hover { color: var(--c-primary-ink); opacity: 1; }
.topbar .langs summary { padding: 0; }

.brandbar { background: var(--c-bg); }
.brandbar-in { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 92px; }
.brandbar .logo-mark { width: 50px; height: 50px; border-radius: 6px; font-size: 20px; }
.brandbar .logo-text b { font-size: 22px; }
.brandbar .logo-text small { font-size: 12px; opacity: .6; }
.brandbar .logo-img { }
.brand-l { display: flex; align-items: center; gap: 22px; min-width: 0; }
.brand-slogan { margin: 0; padding-left: 22px; border-left: 1px solid var(--c-line); font-size: 15px; color: var(--c-muted); line-height: 1.5; max-width: 300px; }
.brandbar-r { display: flex; align-items: center; gap: 28px; }
.brandbar .sform { width: 280px; height: 42px; border-radius: 3px; }
.hotline { display: flex; align-items: center; gap: 12px; }
.hotline-ic { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; border: 2px solid var(--c-primary); color: var(--c-primary); }
.hotline small { display: block; font-size: 12px; color: var(--c-muted); }
.hotline b { display: block; font-size: 20px; color: var(--c-primary); letter-spacing: .01em; line-height: 1.2; }
.burger { display: none; }

.menubar { position: sticky; top: 0; z-index: 50; background: var(--c-primary); color: var(--c-primary-ink); box-shadow: 0 2px 0 rgba(0,0,0,.06); }
.menubar-in { display: flex; align-items: stretch; justify-content: space-between; }
.menubar .menu > ul > li > a { height: var(--head-h); padding: 0 26px; font-size: 16px; color: var(--c-primary-ink); position: relative; }
.menubar .menu > ul > li:first-child > a { padding-left: 0; }
.menubar .menu > ul > li:hover > a, .menubar .menu > ul > li.on > a { background: var(--c-primary-dark); }
.menubar .menu > ul > li:first-child.on > a, .menubar .menu > ul > li:first-child:hover > a { padding-left: 26px; margin-left: -26px; }
.menubar .menu .sub { border-radius: 0 0 4px 4px; top: 100%; }
.menubar-cta { display: inline-flex; align-items: center; gap: 8px; padding: 0 22px; background: var(--c-accent); color: var(--c-primary-ink); font-weight: 700; }
.menubar-cta:hover { color: var(--c-primary-ink); filter: brightness(1.06); }

/* 轮播：在菜单下方，3:1 宽幅；标题放左侧带深色底，避免与图片细节冲突 */
.hero-c { height: clamp(340px, 33vw, 640px); background: var(--c-dark); }
.hero-c .slide::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8,16,28,.62) 0%, rgba(8,16,28,.25) 45%, rgba(8,16,28,0) 70%); pointer-events: none; }
.hero-c-cap { position: absolute; inset: 0; display: flex; align-items: center; z-index: 2; color: var(--c-dark-ink); }
.hero-c-box { max-width: 560px; }
.hero-c-t { font-size: clamp(28px, 3.4vw, 48px); font-weight: 800; margin: 0 0 14px; line-height: 1.2; text-shadow: 0 2px 16px rgba(0,0,0,.25); }
.hero-c-s { font-size: clamp(15px, 1.3vw, 19px); margin: 0 0 26px; opacity: .92; }
.hero-c .car-dots { justify-content: flex-start; left: max(var(--gutter), calc((100vw - var(--wrap)) / 2)); bottom: 28px; }

.hero-c.is-plain { height: auto; aspect-ratio: var(--hero-ratio); max-height: 720px; }
.hero-c.is-plain .slide::after { display: none; }
.c-statbar { background: var(--c-bg); border-bottom: 1px solid var(--c-line); }
.c-statbar ul { display: grid; grid-template-columns: repeat(4, 1fr); }
.c-statbar li { display: flex; align-items: baseline; gap: 12px; padding: 24px 20px; border-left: 1px solid var(--c-line); }
.c-statbar li:first-child { border-left: 0; padding-left: 0; }
.c-statbar b { font-size: 32px; color: var(--c-primary); font-weight: 800; line-height: 1; }
.c-statbar b small { font-size: 14px; margin-left: 2px; }
.c-statbar span { color: var(--c-muted); font-size: 14px; }

/* 区块标题：居左带色块下划线，传统企业站常见的规整感 */
.sec-head { border-bottom: 1px solid var(--c-line); padding-bottom: 14px; }
.sec-head.is-center { border-bottom: 0; padding-bottom: 0; }
.sec-title { position: relative; font-size: clamp(22px, 2.4vw, 28px); }
.sec-head:not(.is-center) .sec-title::after { content: ""; position: absolute; left: 0; bottom: -16px; width: 64px; height: 3px; background: var(--c-primary); }
.kicker { font-size: 12px; color: var(--c-accent); }
.sec.cats { background: var(--c-surface); }
.cat-card { background: var(--c-bg); border: 1px solid var(--c-line); }
.cat-body b { font-size: 17px; }
.featured .pcard { border-radius: 2px; }
.pcard-title { font-size: 15px; }
.about-home { background: var(--c-bg); }
.about-media { border-radius: 2px; box-shadow: 18px 18px 0 var(--c-primary-soft); }
.adv { background: var(--c-dark); color: var(--c-dark-ink); }
.adv .sec-title { color: var(--c-primary-ink); }
.adv .adv-item { background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.1); }
.adv .adv-item h3 { color: var(--c-primary-ink); }
.adv .adv-item p { color: rgba(255,255,255,.65); }
.adv .adv-ic { background: var(--c-primary); color: var(--c-primary-ink); }
.adv .adv-no { color: rgba(255,255,255,.18); }
.news-home { background: var(--c-surface); }
.ncard { background: var(--c-bg); border: 1px solid var(--c-line); }
.ncard-img { border-radius: 0; }
.ncard-body { padding: 16px 18px 20px; }
.clients { border-top: 1px solid var(--c-line); }
.cta { background: linear-gradient(90deg, var(--c-primary-dark), var(--c-primary)); }

.page-head { background: var(--c-surface); border-bottom: 1px solid var(--c-line); padding: 28px 0 30px; }
.page-head .page-title { font-size: clamp(24px, 2.6vw, 32px); }
.catnav li a { border-radius: 2px; }
.catnav { border: 1px solid var(--c-line); }
.catnav-title { background: var(--c-primary); color: var(--c-primary-ink); padding: 12px 16px; margin: 0; }
.catnav ul { padding: 6px; }

@media (max-width: 1080px) {
  .brandbar .sform { display: none; }
  .brand-slogan { max-width: 200px; font-size: 14px; }
  .menubar .menu > ul > li > a { padding: 0 16px; }
}
@media (max-width: 860px) {
  .topbar, .menubar { display: none; }
  .brandbar { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid var(--c-line); }
  .brandbar-in { min-height: 60px; }
  .brandbar .logo-mark { width: 38px; height: 38px; font-size: 16px; }
  .brandbar .logo-text b { font-size: 17px; }
  .brandbar .logo-text small { display: none; }
  .hotline { display: none; }
  .brand-slogan { display: none; }
  .burger { display: inline-grid; margin-right: -10px; }
  .hero-c { height: auto; aspect-ratio: 4/3; }
  .hero-c.is-plain { aspect-ratio: var(--hero-ratio); }
  .hero-c .slide::after { background: linear-gradient(0deg, rgba(8,16,28,.78) 0%, rgba(8,16,28,.2) 55%, rgba(8,16,28,0) 75%); }
  .hero-c-cap { align-items: flex-end; padding-bottom: 46px; }
  .hero-c-s { display: none; }
  .hero-c-t { font-size: 24px; margin-bottom: 14px; }
  .hero-c .btn { min-height: 40px; padding: 8px 16px; font-size: 14px; }
  .hero-c .car-dots { left: var(--gutter); bottom: 18px; }
  .c-statbar ul { grid-template-columns: 1fr 1fr; }
  .c-statbar li { padding: 16px 12px; border-left: 0; border-top: 1px solid var(--c-line); }
  .c-statbar li:nth-child(-n+2) { border-top: 0; }
  .c-statbar li:first-child { padding-left: 12px; }
  .c-statbar li { flex-direction: column; gap: 4px; }
  .c-statbar b { font-size: 26px; }
  .about-media { box-shadow: none; }
  .catnav { border: 0; }
  .catnav ul { padding: 0 var(--gutter) 4px; }
}
/* Logo 高度（随页头所在行，平台统一约定） */
:root { --logo-h: 64px; --logo-h-m: 42px; }

/* 带字 Banner：独立图片区，完整显示；控制栏不覆盖图片。 */

.hero-c.is-plain { height: auto; min-height: 0; max-height: none; aspect-ratio: auto; }
.hero-c.is-plain .hero-c-cap { position: relative; inset: auto; padding: 32px 0; }.hero-c.is-plain .hero-c-s { display: block; }

/* V2 hero modes */
.hero-c-single, .hero-c-empty { position: relative; min-height: clamp(360px, 34vw, 620px); overflow: hidden; background: var(--c-dark); }
.hero-c-single > picture, .hero-c-single > picture img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-c-empty { display: flex; align-items: center; color: var(--c-dark-ink); }

/* 带字图保留原铺法和动效，去掉普通图的遮罩。 */
.hero-c .slide[data-has-text="1"]::after { content: none; display: none; }
.hero-c .hero-c-cap { z-index: 2; }