/* ============================================================
   组件层 · 各区块专属样式
   命名：块级 .c-xxx（component），区块 #sec-xxx
   依赖 tokens.css / base.css
   ============================================================ */

/* ------------------------------------------------------------
   C01 · 吸顶导航 SiteNav
   ------------------------------------------------------------ */
.page-nav__cta,
.page-nav__cta:hover,
.page-nav__cta:focus {
  color: #fff !important;
}
.site-nav {
  position: sticky; top: 0; z-index: var(--z-nav);
  height: var(--nav-h);
  background: rgba(255,255,255,.86);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-2) var(--ease-out), box-shadow var(--dur-2) var(--ease-out);
}
.site-nav.is-stuck { border-bottom-color: var(--line); box-shadow: var(--sh-1); }

.site-nav__inner {
  height: 100%; display: flex; align-items: center; gap: var(--sp-8);
}
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand__mark {
  width: 26px; height: 26px; border-radius: 6px; flex-shrink: 0;
  background: var(--rj-red); position: relative;
}
.brand__mark::after {
  content: ""; position: absolute; inset: 7px 6px auto 6px; height: 3px;
  border-radius: 2px; background: #fff; opacity: .9;
  box-shadow: 0 6px 0 rgba(255,255,255,.55);
}
.brand__text { font-size: 15px; font-weight: var(--fw-black); letter-spacing: -.01em; }
.brand__text span { color: var(--rj-red); }

.site-nav .nav-list { display: flex; align-items: center; gap: 2px; margin-left: auto; }
.site-nav .nav-list a {
  display: block; padding: 8px 12px; font-size: 14px; color: var(--ink-2);
  border-radius: var(--r-sm); position: relative;
  transition: color var(--dur-1) var(--ease-out);
}
.site-nav .nav-list a:hover { color: var(--ink); }
.site-nav .nav-list a::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 2px; height: 2px;
  background: var(--rj-red); border-radius: 2px;
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur-2) var(--ease-out);
}
.site-nav .nav-list a[aria-current="true"] { color: var(--ink); font-weight: var(--fw-bold); }
.site-nav .nav-list a[aria-current="true"]::after { transform: scaleX(1); }

.nav-actions { display: flex; align-items: center; gap: var(--sp-3); margin-left: var(--sp-6); }
.nav-tel { font-size: 13px; color: var(--ink-2); white-space: nowrap; }
.nav-tel b { color: var(--rj-red); font-family: var(--font-num); }

.nav-toggle {
  display: none; width: 40px; height: 40px; margin-left: auto;
  border: 1px solid var(--line); border-radius: var(--r-md); background: #fff;
  cursor: pointer; position: relative;
}
.nav-toggle span, .nav-toggle::before, .nav-toggle::after {
  content: ""; position: absolute; left: 11px; right: 11px; height: 2px;
  background: var(--ink); border-radius: 2px; transition: transform var(--dur-2) var(--ease-out), opacity var(--dur-1);
}
.nav-toggle::before { top: 13px; }
.nav-toggle span    { top: 19px; }
.nav-toggle::after  { top: 25px; }
.nav-toggle[aria-expanded="true"]::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span    { opacity: 0; }
.nav-toggle[aria-expanded="true"]::after  { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 992px) {
  .nav-toggle { display: block; }
  .nav-actions { display: none; }
  .site-nav .nav-list {
    position: fixed; inset: var(--nav-h) 0 auto 0; z-index: var(--z-drawer);
    flex-direction: column; align-items: stretch; gap: 0; margin: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    box-shadow: var(--sh-3); padding: var(--sp-2) var(--pad-x) var(--sp-5);
    max-height: calc(100vh - var(--nav-h)); overflow-y: auto;
    transform: translateY(-8px); opacity: 0; visibility: hidden;
    transition: opacity var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-out), visibility var(--dur-2);
  }
  .site-nav .nav-list.is-open { transform: none; opacity: 1; visibility: visible; }
  .site-nav .nav-list a { padding: 14px 4px; font-size: 15px; border-bottom: 1px solid var(--line-soft); border-radius: 0; }
  .site-nav .nav-list a::after { display: none; }
  .site-nav .nav-list a[aria-current="true"] { color: var(--rj-red); }
  .site-nav .nav-list .nav-cta { margin-top: var(--sp-4); }
  .site-nav .nav-list .nav-cta a {
    background: var(--rj-red); color: #fff; text-align: center;
    border-radius: var(--r-md); border: 0; font-weight: var(--fw-bold);
  }
}
@media (min-width: 993px) { .site-nav .nav-list .nav-cta { display: none; } }

/* ------------------------------------------------------------
   C02 · 首屏 Hero
   ------------------------------------------------------------ */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background: linear-gradient(168deg, var(--deep-900) 0%, var(--deep-700) 52%, var(--deep-800) 100%);
  padding-block: 104px 96px;
}
/* 渐变光效：3 层 radial-gradient，无位图，GPU 友好 */
.hero__glow { position: absolute; inset: 0; pointer-events: none; }
.hero__glow::before,
.hero__glow::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(70px);
}
.hero__glow::before {
  width: 620px; height: 620px; top: -220px; right: -140px;
  background: radial-gradient(circle at 50% 50%, var(--glow-cyan), transparent 68%);
}
.hero__glow::after {
  width: 540px; height: 540px; bottom: -260px; left: -160px;
  background: radial-gradient(circle at 50% 50%, var(--glow-red), transparent 66%);
}
/* 光纤光束线 */
.hero__beams {
  position: absolute; inset: 0; opacity: .5; pointer-events: none;
  background:
    linear-gradient(100deg, transparent 34%, rgba(0,196,255,.16) 44%, transparent 52%),
    linear-gradient(100deg, transparent 52%, rgba(230,0,18,.14) 61%, transparent 69%),
    linear-gradient(100deg, transparent 66%, rgba(160,120,255,.12) 74%, transparent 82%);
}

.hero__inner { position: relative; z-index: 1; }
.hero__grid { display: grid; grid-template-columns: minmax(0,1.08fr) minmax(0,.92fr); gap: var(--sp-16); align-items: center; }
@media (max-width: 992px) { .hero__grid { grid-template-columns: 1fr; gap: var(--sp-10); } }

.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 10px; margin-bottom: var(--sp-5);
  padding: 6px 14px 6px 8px; border-radius: var(--r-pill);
  background: rgba(255,255,255,.08); border: 1px solid var(--deep-line);
  font-size: var(--fs-xs); letter-spacing: .04em; color: #DCE7F5;
}
.hero__eyebrow b {
  background: var(--rj-red); color: #fff; padding: 2px 8px;
  border-radius: var(--r-pill); font-weight: var(--fw-bold);
}
.hero h1 { font-size: var(--fs-display); line-height: var(--lh-display); }
.hero h1 .accent {
  background: var(--spectrum); -webkit-background-clip: text; background-clip: text;
  color: transparent; -webkit-text-fill-color: transparent;
}
.hero__slogan {
  margin-top: var(--sp-4); font-size: 20px; font-weight: var(--fw-bold);
  color: #fff; letter-spacing: .04em;
}
.hero__slogan em { font-style: normal; color: var(--rj-red); background: #fff; padding: 0 6px; border-radius: 3px; }
.hero__sub {
  margin-top: var(--sp-5); font-size: 17px; line-height: 1.75;
  color: var(--deep-text); max-width: 560px;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--sp-3); margin-top: var(--sp-8); }
.hero__note { margin-top: var(--sp-5); font-size: var(--fs-xs); color: rgba(255,255,255,.5); }

/* 首屏数据面板 */
.hero__stats {
  display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1px;
  background: var(--deep-line); border: 1px solid var(--deep-line);
  border-radius: var(--r-xl); overflow: hidden;
  backdrop-filter: blur(6px);
}
.hero__stat { background: rgba(8,19,42,.55); padding: var(--sp-8) var(--sp-6); }
.hero__stat .metric__num { color: #fff; font-size: 38px; }
.hero__stat .metric__num em { font-style: normal; color: #FF5A66; }
.hero__stat .metric__label { color: var(--deep-text); font-size: 13px; }
@media (max-width: 480px) { .hero__stat { padding: var(--sp-5) var(--sp-4); } .hero__stat .metric__num { font-size: 28px; } }

/* 首屏底部光谱条 */
.hero__spectrum { position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: var(--spectrum); opacity: .9; }

/* ------------------------------------------------------------
   C03 · 痛点 Pain
   ------------------------------------------------------------ */
.c-pain { position: relative; height: 100%; padding-top: var(--sp-10); }
.c-pain__idx {
  position: absolute; top: var(--sp-6); left: var(--sp-8);
  font-family: var(--font-num); font-size: 13px; font-weight: var(--fw-black);
  color: var(--rj-red); letter-spacing: .08em;
}
.c-pain__fact {
  margin-top: var(--sp-4); padding-top: var(--sp-4);
  border-top: 1px dashed var(--line);
  font-size: var(--fs-xs); color: var(--ink-3);
}
.c-pain__fact b { color: var(--rj-red); font-family: var(--font-num); font-size: 14px; }

/* ------------------------------------------------------------
   C04 · 架构示意 Architecture
   ------------------------------------------------------------ */
.c-arch {
  background: transparent;
  border: none; border-radius: 0;
  padding: 0; overflow: visible;
}
.c-arch__img { width: 1400px; max-width: 100%; height: auto; display: block; margin: 0 auto; cursor: zoom-in; }
/* 架构图放大入口：图片右上角悬浮按钮 */
.c-arch__frame {
  position: relative; display: block; width: 100%; padding: 0;
  border: 0; background: transparent; text-align: inherit; cursor: zoom-in;
}
.c-arch__zoom {
  position: absolute; top: 12px; right: 12px; z-index: 2;
  display: none; align-items: center; gap: 6px;
  padding: 7px 14px; border: none; border-radius: 999px; cursor: pointer;
  background: rgba(16, 28, 53, .72); color: #fff;
  font-size: 13px; font-weight: 500; line-height: 1; backdrop-filter: blur(6px);
  transition: background var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-out);
}
.c-arch__zoom:hover { background: rgba(16, 28, 53, .92); transform: translateY(-1px); }
.c-arch__zoom-icon { font-size: 15px; line-height: 1; }
.c-arch__zoom-txt { letter-spacing: .02em; }

/* 图片放大灯箱（lightbox）
   官网 .ys_header z-index:9999；打开时 JS 会把节点挂到 body，避免被父级层叠上下文困住 */
.lightbox {
  position: fixed; inset: 0; z-index: 10050;
  display: flex; align-items: center; justify-content: center; padding: 20px;
}
.lightbox[hidden] { display: none; }
.lightbox__mask { position: absolute; inset: 0; background: rgba(10, 16, 28, .86); backdrop-filter: blur(4px); }
.lightbox__panel {
  position: relative; z-index: 1; max-width: min(96vw, 1500px); max-height: 92vh;
  display: flex; flex-direction: column;
  background: #fff; border-radius: 10px; overflow: hidden;
  box-shadow: 0 24px 70px rgba(0,0,0,.45);
}
.lightbox__scroll {
  overflow: auto; -webkit-overflow-scrolling: touch;
  display: flex; justify-content: center; padding: 14px; max-height: 88vh;
}
.lightbox__scroll img { max-width: none; width: 1400px; height: auto; display: block; }
.lightbox__close {
  position: absolute; top: 10px; right: 10px; z-index: 2;
  width: 36px; height: 36px; border: none; border-radius: 50%; cursor: pointer;
  background: rgba(255,255,255,.92); color: #1a1a1a; font-size: 16px; line-height: 1;
  display: grid; place-items: center;
  transition: background var(--dur-1) var(--ease-out), transform var(--dur-1) var(--ease-out);
}
.lightbox__close:hover { background: #fff; transform: scale(1.06); }
@media (max-width: 768px) {
  .lightbox {
    align-items: stretch;
    justify-content: stretch;
    padding: 10px;
    padding-top: calc(10px + env(safe-area-inset-top, 0px));
    padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px));
  }
  .lightbox__panel {
    width: 100%;
    max-width: 100%;
    flex: 1 1 auto;
    height: auto;
    min-height: 0;
    max-height: none;
    border-radius: 8px;
  }
  .lightbox__scroll {
    flex: 1 1 auto;
    min-height: 0;
    padding: 12px;
    max-height: none;
    height: 100%;
    justify-content: flex-start;
    align-items: flex-start;
  }
  /* 按可视高度放大，保证白底区域够高，仍可横向滑动看细节 */
  .lightbox__scroll img {
    width: max(100%, calc((100vh - 48px - env(safe-area-inset-top, 0px)) * 1400 / 690));
    max-width: 1400px;
    height: auto;
  }
  .lightbox__close {
    position: fixed;
    top: calc(14px + env(safe-area-inset-top, 0px));
    right: max(12px, env(safe-area-inset-right, 0px));
    z-index: 10051;
    width: 44px; height: 44px; font-size: 18px;
    background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,.25);
  }
}
.c-arch__legend {
  display: flex; flex-wrap: wrap; gap: var(--sp-5);
  margin-top: var(--sp-6); padding-top: var(--sp-5);
  border-top: 1px solid rgba(255,255,255,.10);
  font-size: var(--fs-xs); color: var(--deep-text);
}
.c-arch__legend i { display: inline-block; width: 20px; height: 3px; border-radius: 2px; margin-right: 8px; vertical-align: middle; }

/* 方案子卡（超聚合 / 超融合 / 星空） */
.c-sub { height: 100%; display: flex; flex-direction: column; }
.c-sub__tag { font-size: var(--fs-xs); letter-spacing: .1em; color: var(--ink-3); margin-bottom: 6px; }
.c-sub__kv { display: flex; gap: 10px; font-size: var(--fs-sm); color: var(--ink-2); margin-top: 8px; }
.c-sub__kv dt { flex: 0 0 56px; color: var(--ink-3); font-size: var(--fs-xs); padding-top: 2px; }
.c-sub__kv dd { margin: 0; flex: 1; }
.c-sub__kv b { color: var(--ink); font-weight: normal; }

/* ------------------------------------------------------------
   C05 · 核心亮点 Highlights
   ------------------------------------------------------------ */
.c-hl { height: 100%; }
.c-hl__icon {
  width: 44px; height: 44px; border-radius: var(--r-md);
  display: grid; place-items: center; margin-bottom: var(--sp-5);
  background: var(--rj-red-soft); color: var(--rj-red);
}
.c-hl__icon svg { width: 22px; height: 22px; }
.c-hl__icon--ratio {
  color: #0175e8;
}
.c-hl__icon--ratio svg { width: 18px; height: 21px; }
.c-hl__meta { margin-top: var(--sp-4); font-size: var(--fs-xs); color: var(--ink-3); }
.c-hl__meta b { color: var(--rj-red); font-weight: normal; }

/* 5.0 三大升级 · 深色卡 */
.c-up {
  position: relative; height: 100%; padding: var(--sp-8);
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--r-lg); overflow: hidden;
  transition: border-color var(--dur-2) var(--ease-out), background var(--dur-2) var(--ease-out);
}
.c-up:hover { border-color: rgba(230,0,18,.5); background: rgba(255,255,255,.07); }
.c-up::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--spectrum); }
.c-up__no {
  font-family: var(--font-num); font-size: 13px; letter-spacing: .1em;
  color: #FF6B78; font-weight: var(--fw-black); margin-bottom: var(--sp-3);
}
.c-up h3 { color: #fff; }
.c-up p { color: var(--deep-text); font-size: var(--fs-sm); margin-top: var(--sp-3); }
.c-up__date {
  margin-top: var(--sp-5); padding-top: var(--sp-4);
  border-top: 1px solid rgba(255,255,255,.12);
  font-size: var(--fs-xs); color: rgba(255,255,255,.6);
}
.c-up__date b { color: #fff; font-family: var(--font-num); }

/* ------------------------------------------------------------
   C06 · 版本对比 Compare
   ------------------------------------------------------------ */
.c-cmp-switch {
  display: inline-flex; gap: 4px; padding: 4px; margin-bottom: var(--sp-6);
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--r-pill);
}
.c-cmp-switch button {
  border: 0; background: none; padding: 8px 18px; border-radius: var(--r-pill);
  font-size: var(--fs-sm); font-weight: var(--fw-bold); color: var(--ink-2); cursor: pointer;
  transition: background var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out);
}
.c-cmp-switch button[aria-selected="true"] { background: var(--rj-red); color: #fff; }

.tbl thead th.is-v5 { background: #FFF0F2; color: var(--rj-red); }
.tbl thead th.is-v4 { color: var(--ink-2); }
.upgrade-note {
  margin-top: var(--sp-5); padding: var(--sp-5) var(--sp-6);
  background: var(--rj-red-soft); border-left: 3px solid var(--rj-red);
  border-radius: 0 var(--r-md) var(--r-md) 0; font-size: var(--fs-sm); color: var(--ink-2);
}
.upgrade-note b { color: var(--rj-red); }

/* ------------------------------------------------------------
   C07 · 场景 Scenario
   ------------------------------------------------------------ */
.c-scene {
  position: relative; height: 100%; overflow: hidden;
  border: 1px solid var(--line); border-radius: var(--r-lg); background: #fff;
  transition: box-shadow var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-out);
}
.c-scene:hover { box-shadow: var(--sh-3); transform: translateY(-3px); }
.c-scene__visual {
  height: 118px; position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--deep-800), var(--deep-700));
}
.c-scene__visual::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,196,255,.08), rgba(0,150,255,.04));
}
.c-scene__visual svg { position: absolute; inset: 0; margin: auto; width: 46px; height: 46px; color: #fff; opacity: .92; }
.c-scene__ind {
  position: absolute; top: 12px; left: 14px; z-index: 1;
  font-size: var(--fs-xs); font-weight: var(--fw-bold); color: #fff;
  background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.22);
  padding: 2px 9px; border-radius: var(--r-pill);
}
.c-scene__body { padding: var(--sp-6); }
.c-scene__body h3 { font-size: 17px; }
.c-scene__body p { font-size: var(--fs-sm); color: var(--ink-2); margin-top: 8px; }
.c-scene__data {
  display: flex; flex-wrap: wrap; gap: 6px; margin-top: var(--sp-4);
}
.c-scene__data span {
  font-size: var(--fs-xs); color: var(--rj-red); background: var(--rj-red-soft);
  padding: 3px 9px; border-radius: var(--r-sm); font-weight: var(--fw-medium);
}

/* ------------------------------------------------------------
   C08 · 案例 Case
   ------------------------------------------------------------ */
.c-case { height: 100%; display: flex; flex-direction: column; }
.c-case__ind { font-size: var(--fs-xs); color: var(--rj-red); font-weight: var(--fw-bold); letter-spacing: .06em; }
.c-case__name { margin-top: 6px; font-size: 19px; font-weight: var(--fw-black); }
.c-case__desc { margin-top: var(--sp-3); font-size: var(--fs-sm); color: var(--ink-2); flex: 1; }
.c-case__metrics {
  display: flex; flex-wrap: wrap; gap: var(--sp-6);
  margin-top: var(--sp-5); padding-top: var(--sp-5); border-top: 1px solid var(--line);
}
.c-case__metrics .metric__num { font-size: 28px; }
.c-case__metrics .metric__label { font-size: var(--fs-xs); }

.stat-strip {
  display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1px;
  background: var(--line); border: 1px solid var(--line);
  border-radius: var(--r-lg); overflow: hidden;
}
.stat-strip > div { background: #fff; padding: var(--sp-8) var(--sp-5); text-align: center; }
@media (max-width: 768px) { .stat-strip { grid-template-columns: repeat(2, minmax(0,1fr)); } }

/* ------------------------------------------------------------
   C09 · 产品清单 Products
   ------------------------------------------------------------ */
.c-prod-tabs { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-bottom: var(--sp-6); }
.c-prod-tabs button {
  padding: 9px 18px; border: 1px solid var(--line); background: #fff;
  border-radius: var(--r-pill); font-size: var(--fs-sm); color: var(--ink-2);
  cursor: pointer; transition: all var(--dur-2) var(--ease-out);
}
.c-prod-tabs button:hover { border-color: var(--rj-red-line); color: var(--rj-red); }
.c-prod-tabs button[aria-selected="true"] { background: var(--rj-red); border-color: var(--rj-red); color: #fff; font-weight: var(--fw-bold); }

.c-prod { display: flex; gap: var(--sp-5); padding: var(--sp-6); height: 100%; }
.c-prod__ph {
  flex: 0 0 68px; height: 68px; border-radius: var(--r-md);
  background: linear-gradient(135deg, #EEF2F7, #E3E9F2);
  display: grid; place-items: center; color: var(--ink-3);
}
.c-prod__ph svg { width: 28px; height: 28px; }
.c-prod__model { font-family: var(--font-num); font-size: 15px; font-weight: var(--fw-black); letter-spacing: -.01em; }
.c-prod__link { color: inherit; text-decoration: none; transition: color .15s ease; }
.c-prod__link::after { content: " ↗"; font-size: .78em; color: #0175e8; }
.c-prod__link:hover { color: inherit; }
.c-prod__name { font-size: var(--fs-xs); color: var(--ink-3); margin-top: 2px; }
.c-prod__spec { margin-top: 10px; font-size: var(--fs-sm); color: var(--ink-2); }
.c-prod__tier {
  display: inline-block; margin-top: 10px; font-size: var(--fs-xs);
  padding: 2px 8px; border-radius: var(--r-sm); background: var(--bg-soft); color: var(--ink-3);
}
[hidden] { display: none !important; }

/* ------------------------------------------------------------
   C10 · 资源下载 Resource
   ------------------------------------------------------------ */
.c-res {
  display: flex; align-items: flex-start; gap: var(--sp-5);
  padding: var(--sp-6); height: 100%; background: #fff;
  border: 1px solid var(--line); border-radius: var(--r-lg);
  transition: border-color var(--dur-2) var(--ease-out), box-shadow var(--dur-2) var(--ease-out);
}
.c-res:hover { border-color: var(--rj-red-line); box-shadow: var(--sh-2); }
.c-res__ico {
  flex: 0 0 44px; height: 56px; border-radius: var(--r-sm); position: relative;
  background: linear-gradient(160deg, #fff, #F2F5F9); border: 1px solid var(--line);
}
.c-res__ico::after {
  content: attr(data-ext); position: absolute; left: 0; right: 0; bottom: 7px;
  text-align: center; font-size: 10px; font-weight: var(--fw-black); color: var(--rj-red);
  letter-spacing: .04em;
}
.c-res__ico::before {
  content: ""; position: absolute; inset: 10px 9px auto 9px; height: 2px;
  background: var(--line); border-radius: 2px;
  box-shadow: 0 6px 0 var(--line), 0 12px 0 var(--line);
}
.c-res__title { font-size: 15px; font-weight: var(--fw-bold); }
.c-res__meta { font-size: var(--fs-xs); color: var(--ink-3); margin-top: 4px; }
.c-res__link { margin-top: 10px; }

/* ------------------------------------------------------------
   C11 · 咨询转化 Contact / Form
   ------------------------------------------------------------ */
.c-contact {
  background: linear-gradient(150deg, var(--deep-900) 0%, var(--deep-700) 60%, var(--deep-800) 100%);
  color: #fff; position: relative; overflow: hidden;
}
.c-contact::before {
  content: ""; position: absolute; width: 560px; height: 560px; border-radius: 50%;
  top: -180px; left: -120px; filter: blur(80px);
  background: radial-gradient(circle, var(--glow-violet), transparent 68%);
  pointer-events: none;
}
.c-contact__grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0,1fr) minmax(0,520px); gap: var(--sp-16); align-items: center; }
@media (max-width: 992px) { .c-contact__grid { grid-template-columns: 1fr; gap: var(--sp-10); } }

.c-contact__points li {
  display: flex; gap: 12px; align-items: flex-start;
  padding: var(--sp-4) 0; border-bottom: 1px solid rgba(255,255,255,.10);
  color: var(--deep-text); font-size: var(--fs-sm);
}
.c-contact__points li b { color: #fff; }
.c-contact__points li::before {
  content: "✓"; flex: 0 0 20px; height: 20px; border-radius: 50%;
  background: var(--rj-red); color: #fff; font-size: 11px;
  display: grid; place-items: center; margin-top: 2px;
}

.c-form {
  background: #fff; color: var(--ink); border-radius: var(--r-xl);
  padding: var(--sp-10); box-shadow: var(--sh-3);
}
@media (max-width: 480px) { .c-form { padding: var(--sp-6); } }
.c-form__title { font-size: 21px; font-weight: var(--fw-black); }
.c-form__sub { font-size: var(--fs-sm); color: var(--ink-3); margin-top: 6px; margin-bottom: var(--sp-6); }

.field { margin-bottom: var(--sp-5); }
.field > label { display: block; font-size: var(--fs-sm); font-weight: var(--fw-bold); margin-bottom: 8px; }
.field .req { color: var(--rj-red); margin-left: 2px; }
.field input, .field select, .field textarea {
  width: 100%; height: 46px; padding: 0 14px;
  border: 1px solid var(--line); border-radius: var(--r-md); background: #fff;
  transition: border-color var(--dur-2) var(--ease-out), box-shadow var(--dur-2) var(--ease-out);
}
.field textarea { height: auto; min-height: 92px; padding: 12px 14px; resize: vertical; }
/* 表单：未填充时显示灰字，下拉选项保持黑色 */
.field input::placeholder,
.field textarea::placeholder { color: #C1C6CF; opacity: 1; }
.field select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 28px;
  color: var(--ink);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='m4 6 4 4 4-4' fill='none' stroke='%23999' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-position: right 4px center;
  background-repeat: no-repeat;
  background-size: 16px 16px;
}
.field select:has(option[value=""]:checked) { color: #C1C6CF; }
.field select option { color: var(--ink); }
.field select option[value=""] { color: #C1C6CF; }
.field select option[value=""]:checked { color: #C1C6CF; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: #C9CFD8; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: #6A6B6D; box-shadow: none;
}
.field[data-invalid="true"] input,
.field[data-invalid="true"] select { border-color: var(--rj-red); background: var(--rj-red-soft); }
.field__err { display: none; margin-top: 6px; font-size: var(--fs-xs); color: var(--rj-red); }
.field[data-invalid="true"] .field__err { display: block; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field-row.field-row--asym { grid-template-columns: 160px minmax(0,1fr); }
@media (max-width: 480px) {
  .field-row, .field-row.field-row--asym { grid-template-columns: 1fr; gap: 16px; }
}

.consent { display: flex; gap: 10px; align-items: flex-start; font-size: var(--fs-xs); color: var(--ink-3); margin-bottom: var(--sp-5); }
.consent input { width: 16px; height: 16px; margin-top: 2px; flex-shrink: 0; accent-color: var(--rj-red); }
.consent a { color: var(--rj-red); text-decoration: underline; }

.form-status {
  margin-top: var(--sp-4); font-size: var(--fs-sm); font-weight: var(--fw-bold);
  color: var(--ok); display: none;
}
.form-status.is-show { display: block; }

/* ------------------------------------------------------------
   C12 · 页脚 Footer + 移动端浮动 CTA
   ------------------------------------------------------------ */
.site-footer { background: #071021; color: rgba(255,255,255,.62); padding-block: var(--sp-16) var(--sp-10); font-size: var(--fs-sm); }
.site-footer a:hover { color: #fff; }
.site-footer h4 { color: #fff; font-size: var(--fs-sm); margin-bottom: var(--sp-4); }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: var(--sp-10); }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--sp-8); } }
.footer-grid li { margin-bottom: 10px; font-size: 13px; }
.footer-bottom {
  margin-top: var(--sp-12); padding-top: var(--sp-6);
  border-top: 1px solid rgba(255,255,255,.10);
  display: flex; flex-wrap: wrap; gap: var(--sp-4) var(--sp-8);
  justify-content: space-between; font-size: var(--fs-xs); color: rgba(255,255,255,.42);
}

.float-cta {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: var(--z-nav);
  display: none; gap: var(--sp-3); padding: 10px var(--pad-x) calc(10px + env(safe-area-inset-bottom));
  background: rgba(255,255,255,.95); border-top: 1px solid var(--line);
  backdrop-filter: blur(12px);
}
@media (max-width: 768px) {
  .float-cta { display: flex; }
  body { padding-bottom: 72px; }
}
.float-cta .btn { flex: 1; height: 44px; }

/* ---- 去AI味迭代：生成配图嵌入 ---- */
/* 首屏 KV 实拍背景 + 暗化蒙版，保证文字可读 */
.hero__kv { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; opacity: .6; }
.hero__scrim {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: linear-gradient(120deg, rgba(8,19,42,.92) 0%, rgba(8,19,42,.5) 50%, rgba(8,19,42,.8) 100%);
}
/* 场景卡配图：覆盖原图标区 */
.c-scene__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .92; }
/* 案例卡配图：顶部示意缩略图 */
.c-case__img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--r-md); margin-bottom: var(--sp-5); }

/* ============================================================
   Figma 52:3635 · 锐捷官网 1920px 视觉还原
   ============================================================ */
.ruijie-shell {
  width: calc(100% - 48px);
  max-width: 1400px;
  margin-inline: auto;
}

/* 官网头部：26px 工具条 + 60px 主导航 */
.site-nav {
  height: 86px;
  background: #fff;
  border-bottom: 1px solid var(--line);
  box-shadow: 0 4px 10px rgba(0,0,0,.06);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.site-nav.is-stuck { border-bottom-color: var(--line); box-shadow: 0 4px 10px rgba(0,0,0,.08); }
.ruijie-header__utility { height: 26px; background: #f0f1f2; color: #999; font-size: 12px; }
.ruijie-header__utility-inner,
.ruijie-header__quick,
.ruijie-header__account,
.ruijie-header__account a { height: 100%; display: flex; align-items: center; }
.ruijie-header__utility-inner { justify-content: space-between; }
.ruijie-header__quick,
.ruijie-header__account { gap: 16px; }
.ruijie-header__quick i,
.ruijie-header__account > i { width: 1px; height: 14px; background: #cfd2d4; }
.ruijie-header__account a { gap: 6px; }
.ruijie-header__account img { width: 12px; height: 12px; }
.ruijie-header__lang span { margin-left: 2px; font-size: 11px; }
.ruijie-header__quick a,
.ruijie-header__account a { transition: color var(--dur-1) var(--ease-out); }
.ruijie-header__quick a:hover,
.ruijie-header__account a:hover { color: var(--ink); }
.ruijie-header__main { height: 60px; }
.ruijie-header__main-inner { height: 100%; display: flex; align-items: center; }
.ruijie-logo { width: 156px; height: 26px; flex: 0 0 156px; overflow: hidden; }
.ruijie-logo img { width: 156px; height: auto; display: block; }
.ruijie-header .nav-list { margin-left: 49px; gap: 0; }
.ruijie-header .nav-list a {
  height: 60px; padding: 0 20px; display: flex; align-items: center;
  color: #292929; font-size: 16px; border-radius: 0;
}
.ruijie-header .nav-list a::after { left: 20px; right: 20px; bottom: 0; height: 2px; }
.ruijie-header .nav-list a:hover::after { transform: scaleX(1); }
.ruijie-search {
  width: 294px; height: 40px; margin-left: auto; display: flex; align-items: center;
  border: 1px solid #ccc; border-radius: 4px; background: #fff; overflow: hidden;
  transition: border-color var(--dur-2) var(--ease-out), box-shadow var(--dur-2) var(--ease-out);
}
.ruijie-search:focus-within { border-color: #999; box-shadow: 0 0 0 3px rgba(1,117,232,.08); }
.ruijie-search input { min-width: 0; flex: 1; height: 100%; padding: 0 16px; border: 0; outline: 0; font-size: 14px; }
.ruijie-search input::placeholder { color: #999; }
.ruijie-search button { width: 42px; height: 100%; border: 0; background: #fff; display: grid; place-items: center; cursor: pointer; }
.ruijie-search button img { width: 17px; height: 17px; }

/* Figma 中首屏下方 60px 面包屑与本页导航（白底 + 吸顶） */
.page-nav {
  position: sticky; top: var(--page-nav-top, var(--nav-h)); z-index: var(--z-drawer);
  height: 60px; background: #fff; color: var(--ink-3);
  box-shadow: none;
}
/* PC 吸顶兜底：sticky 在部分桌面布局下会失效，is-stuck 时改 fixed */
.page-nav.is-stuck {
  position: fixed;
  top: var(--page-nav-top, var(--nav-h));
  left: 0;
  right: 0;
  width: 100%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .06);
}
.page-nav__inner { height: 100%; display: flex; align-items: center; gap: 24px; }
.page-nav__crumbs { display: flex; align-items: center; gap: 8px; flex: 0 0 auto; font-size: 14px; }
.page-nav__crumbs a:hover { color: var(--ink); }
.page-nav__links { display: flex; align-items: center; justify-content: flex-end; gap: 24px; min-width: 0; margin-left: auto; }
.page-nav__links a { position: relative; padding-block: 2px 4px; color: var(--ink-2)!important; font-size: 16px; white-space: nowrap; }
.page-nav__links a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--rj-red); transform: scaleX(0); transition: transform var(--dur-2) var(--ease-out); }
.page-nav__links a:hover,
.page-nav__links a[aria-current="true"] { color: var(--ink)!important; font-weight: var(--fw-bold); }
.page-nav__links a:hover::after,
.page-nav__links a[aria-current="true"]::after { transform: scaleX(1); }
/* 吸顶时的预约按钮：默认隐藏，吸顶出现 */
.page-nav__cta {
  display: none; flex: 0 0 auto;
  align-items: center; justify-content: center;
  height: 40px; padding-inline: 20px; border-radius: 4px;
  background: var(--rj-red); color: #fff; font-size: 15px; white-space: nowrap;
  transition: background var(--dur-2) var(--ease-out);
}
.page-nav__cta:hover,
.page-nav__cta:focus { background: var(--rj-red-deep); color: #fff !important; }
.page-nav.is-stuck .page-nav__cta { display: inline-flex; }
.page-nav__links a { flex-shrink: 0; }
main > section[tabindex="-1"]:focus { outline: 0; }

/* 正文设计令牌落地 */
.section .eyebrow { display: none; }
.section .sec-head { margin-inline: auto; margin-bottom: 48px; text-align: center; }
/* 方案总览标题一行显示，不换行 */
#solution .sec-head h2 { white-space: nowrap; }
@media (max-width: 768px) { #solution .sec-head h2 { white-space: normal; font-size: 22px; line-height: 1.4; } }
.section .sec-desc {
  width: min(1120px, calc(100vw - 48px));
  margin-top: 16px; margin-left: 50%; transform: translateX(-50%);
  color: var(--ink-2); line-height: 24px; text-align: center;
}
.card { padding: 32px; }
.card__title { margin-bottom: 12px; }
.card__text { line-height: 21px; }
.card:hover { border-color: #c8d8eb; box-shadow: 0 10px 24px rgba(25,52,82,.09); }

.hero { min-height: 600px; padding-block: 104px 0; }
.hero__grid { gap: 64px; }
.hero h1 { font-size: 48px; line-height: 60px; white-space: nowrap; }
.hero__sub { line-height: 29.75px; }
.hero__actions { gap: 24px; }
.hero__actions .btn { width: 176px; height: 46px; padding-inline: 24px; border-radius: 4px; font-size: 16px; font-weight: 400; }
.hero__actions .btn--onDeep:hover,
.hero__actions .btn--onDeep:focus { color: #fff !important; }
.hero__actions .hero__live-btn {
  width: auto;
  min-width: 176px;
  padding-inline: 20px;
  white-space: nowrap;
}
.hero__stats { background: rgba(255,255,255,.12); }

#challenge .c-pain__idx { display: none; }
#challenge .c-pain { padding: 32px; border-radius: 12px; min-height: 240px; }
#challenge .c-pain__fact { font-size: 14px; line-height: 18px; }
#challenge .c-pain__fact b { color: #0175e8; font-size: 14px; font-weight: 400; }

.c-sub { border-radius: 12px; }
.c-hl { min-height: 262px; }
.c-hl__icon { background: #e6f2fd; color: #0175e8; }
.c-hl__meta b { color: #0175e8; font-weight: normal; }
.c-hl__meta { font-size: 14px; line-height: 18px; }

/* 项目背书条幅：权威规模、市场排名与行业标准 */
.proof-strip {
  --proof-x: 50%; --proof-y: 50%;
  position: relative; overflow: hidden; padding-block: 30px;
  background:
    radial-gradient(circle at 12% 130%, rgba(1,117,232,.14), transparent 34%),
    radial-gradient(circle at 88% -30%, rgba(40,199,111,.10), transparent 32%),
    linear-gradient(105deg, #eef7ff 0%, #e2f1ff 48%, #f2f8ff 100%);
  border-block: 1px solid #d5e7f7;
}
.proof-strip::before,
.proof-strip::after {
  content: ""; position: absolute; width: 340px; height: 100px;
  border: 1px solid rgba(1,117,232,.12); border-radius: 50%; transform: rotate(-12deg);
}
.proof-strip::before { left: -120px; bottom: -70px; }
.proof-strip::after { right: -120px; top: -68px; transform: rotate(12deg); }
.proof-strip__inner {
  position: relative; z-index: 1; isolation: isolate;
}
.proof-strip__inner::before {
  content: ""; position: absolute; inset: -54px -48px; z-index: 0; pointer-events: none;
  background:
    radial-gradient(circle at var(--proof-x) var(--proof-y), rgba(232,151,190,.38) 0, transparent 25%),
    radial-gradient(circle at calc(var(--proof-x) - 16%) calc(var(--proof-y) + 12%), rgba(105,188,228,.36) 0, transparent 27%),
    radial-gradient(circle at calc(var(--proof-x) + 17%) calc(var(--proof-y) - 12%), rgba(163,143,211,.34) 0, transparent 27%),
    radial-gradient(circle at calc(var(--proof-x) + 8%) calc(var(--proof-y) + 15%), rgba(173,211,126,.30) 0, transparent 25%);
  filter: blur(26px) saturate(.78) brightness(1.18); mix-blend-mode: screen; opacity: 0;
  transform: translate3d(-2.5%, 0, 0) scale(.97);
  transition: opacity 650ms var(--ease-out), transform 1200ms var(--ease-out);
}
.proof-strip__inner > * { position: relative; z-index: 1; }
.proof-strip:hover .proof-strip__inner::before {
  opacity: .82;
  animation: proof-glow-drift 5.5s ease-in-out infinite alternate;
}
@keyframes proof-glow-drift {
  from { transform: translate3d(-2.5%, -1%, 0) scale(.97); }
  to { transform: translate3d(2.5%, 1%, 0) scale(1.03); }
}
.proof-strip__items {
  display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); column-gap: 32px;
}
.proof-strip__item {
  display: flex; flex-direction: column; align-items: center;
  min-height: 170px; padding: 4px 12px; text-align: center;
  transition: transform var(--dur-2) var(--ease-out);
}
.proof-strip__item:hover { transform: translateY(-2px); }
.proof-strip__award {
  display: grid; grid-template-columns: 48px minmax(0,1fr) 48px;
  align-items: end; gap: 8px; width: 100%; min-height: 106px;
}
.proof-strip__award-copy {
  display: flex; flex-direction: column; align-items: center; justify-content: flex-end;
  width: 100%; min-width: 0;
}
.proof-strip__wheat {
  display: block; width: 48px; height: 88px; justify-self: center;
  object-fit: contain; object-position: center bottom;
}
.proof-strip__wheat.is-right { transform: scaleX(-1); }
.proof-strip__award h3 {
  display: flex; align-items: flex-end; justify-content: center;
  min-height: 42px; margin: 0; font-size: 15px; line-height: 1.35;
  background: linear-gradient(180deg, #E0A64D 0%, #9E750F 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.proof-strip__metric {
  display: flex; align-items: flex-end; justify-content: center; gap: 4px;
  min-height: 50px; line-height: 1;
  background: linear-gradient(180deg, #E0A64D 0%, #9E750F 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.proof-strip__metric strong,
.proof-strip__metric span {
  font-family: var(--font-num); font-size: 44px;
  font-weight: var(--fw-black); letter-spacing: -.03em;
}
.proof-strip__metric span { padding-bottom: 0; }
.proof-strip__metric--standard { transform: translateY(-3px); }
.proof-strip__metric--standard strong { font-size: 30px; letter-spacing: -.01em; white-space: nowrap; }
.proof-strip__item > p { margin-top: 14px; color: #526a82; font-size: 13px; line-height: 1.55; }
.proof-strip__item small { display: block; margin-top: 5px; color: #7890a7; font-size: 11px; line-height: 1.4; }

@media (max-width: 1100px) {
  .proof-strip__items { column-gap: 18px; }
  .proof-strip__item { padding-inline: 8px; }
  .proof-strip__award { grid-template-columns: 38px minmax(0,1fr) 38px; gap: 6px; }
  .proof-strip__wheat { width: 38px; height: 76px; }
  .proof-strip__metric strong,
  .proof-strip__metric span { font-size: 38px; }
  .proof-strip__metric--standard strong { font-size: 20px; }
}
@media (max-width: 900px) and (min-width: 769px) {
  .proof-strip__items { column-gap: 10px; }
  .proof-strip__item { padding-inline: 4px; }
  .proof-strip__award { grid-template-columns: 28px minmax(0,1fr) 28px; gap: 4px; }
  .proof-strip__wheat { width: 28px; height: 62px; }
  .proof-strip__award h3 { font-size: 12px; }
  .proof-strip__metric--standard strong { font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  .proof-strip__inner::before { transition: none; }
  .proof-strip:hover .proof-strip__inner::before { animation: none; transform: none; }
}

.table-wrap { border-radius: 12px; }
.tbl th, .tbl td { padding: 11px 16px; line-height: 21px; }
.tbl thead th { background: #f1f3f5; }
.tbl thead th.is-v5 { background: #e8f0fc; color: #0175e8; }
.tbl td.cell-new { background: #f1f6fe; color: #0175e8; font-weight: normal; }
.tbl td.cell-new b { font-weight: normal; }

.c-scene { border-radius: 4px; }
.c-scene__data { margin-top: 8px; }
.c-scene__data span { color: var(--ink-2); background: #f7f9fa; font-weight: 400; }

#cases { padding-block: 80px; }
#cases .container,
#products .container { max-width: 1448px; }
#cases .sec-head { margin-bottom: 32px; }
.stat-strip { height: 136px; border-radius: 12px; }
.stat-strip > div { padding: 32px 20px; }

/* 案例卡：隔离官网全局 float/h3/a 规则，修正文案间距 */
#cases .c-case__link {
  display: block;
  width: 100%;
  height: 100%;
  float: none;
  overflow: hidden;
  color: inherit;
  text-decoration: none;
  border-radius: 4px;
}
#cases .c-case.card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 0;
  overflow: hidden;
  float: none;
  border: 0;
  border-radius: 4px;
  background: #f7f9fa;
  transform: none;
}
#cases .c-case.card:hover {
  transform: none;
  border-color: transparent;
  box-shadow: 0 10px 24px rgba(25, 52, 82, .10);
}
#cases .c-case__img {
  display: block;
  width: 100%;
  margin: 0;
  border-radius: 0;
  aspect-ratio: 450 / 254;
  object-fit: cover;
}
#cases .c-case__ind {
  margin: 24px 24px 0;
  padding: 0;
  color: var(--ink-2);
  line-height: 1.5;
}
#cases .c-case__title-row {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin: 6px 24px 0;
  min-width: 0;
}
#cases .c-case__name {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
  margin: 6px 24px 0;
  padding: 0;
  float: none;
  font-size: 20px;
  font-weight: var(--fw-black);
  line-height: 1.4;
  color: var(--ink);
}
#cases .c-case__detail,
#cases .c-case__title-row .link-arrow,
#cases .c-case__name .link-arrow {
  flex: 0 0 auto;
  float: none !important;
  position: static !important;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  white-space: nowrap;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.4;
  color: var(--rj-red);
}
#cases .c-case__link:hover .c-case__detail::after {
  transform: translateX(4px);
}
#cases .c-case__desc {
  clear: both;
  margin: 12px 24px 0;
  padding: 0;
  float: none;
  width: auto;
  max-width: 100%;
  font-size: 16px;
  line-height: 24px;
  color: var(--ink-2);
  overflow-wrap: break-word;
  word-break: normal;
}
#cases .c-case__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-6);
  clear: both;
  float: none;
  width: auto;
  margin: 20px 24px 24px;
  padding-top: var(--sp-5);
  border-top: 1px solid var(--line);
}
#cases .c-case__metrics > div {
  min-width: 0;
  float: none;
  width: auto;
}
#cases .c-case__metrics .metric__num {
  margin: 0;
  padding: 0;
  color: #0175e8;
  font-size: 28px;
  line-height: 1.1;
}
#cases .c-case__metrics .metric__label {
  margin: 6px 0 0;
  padding: 0;
  font-size: var(--fs-sm);
  line-height: 1.5;
  color: var(--ink-2);
  white-space: normal;
  writing-mode: horizontal-tb;
  word-break: normal;
}
#cases .c-case__link:focus-visible {
  outline: 2px solid #0175e8;
  outline-offset: 3px;
}
#cases .c-cases-more {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 16px 24px;
  margin-top: 40px;
}
#cases .c-cases-more .muted {
  margin: 0;
  flex: 0 1 auto;
  color: var(--ink-3);
  line-height: 1.5;
}
#cases .c-cases-more .btn--primary {
  flex: 0 0 auto;
  color: #fff !important;
}
#cases .c-cases-more .btn--primary:hover,
#cases .c-cases-more .btn--primary:focus {
  color: #fff !important;
}

.c-case.card { padding: 0; overflow: hidden; border: 0; border-radius: 4px; background: #f7f9fa; }
.c-case.card:hover { box-shadow: 0 10px 24px rgba(25,52,82,.10); }
.c-case__img { margin: 0; border-radius: 0; aspect-ratio: 450 / 254; }
.c-case__ind { margin: 24px 24px 0; color: var(--ink-2); }
.c-case__name { margin: 6px 24px 0; font-size: 20px; display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.c-case__detail { flex: 0 0 auto; font-size: 15px; font-weight: 400; white-space: nowrap; }
.c-case__link:hover .c-case__detail::after { transform: translateX(4px); }
.c-case__desc { margin: 12px 24px 0; font-size: 16px; line-height: 24px; }
.c-case__metrics { margin: 20px 24px 24px; }
.c-case__metrics .metric__num { color: #0175e8; }
/* 整卡可点：案例外链包裹层 */
.c-case__link { display: block; height: 100%; color: inherit; text-decoration: none; border-radius: 4px; }
.c-case__link:hover .c-case__name { color: inherit; }
.c-case__link:hover .c-case.card { box-shadow: 0 10px 24px rgba(25,52,82,.10); }
.c-case__link:focus-visible { outline: 2px solid #0175e8; outline-offset: 3px; }

#products { padding-block: 80px; }
#products .sec-head { margin-bottom: 20px; }
.c-prod-tabs { justify-content: center; gap: 0; margin-bottom: 32px; }
.c-prod-tabs button { padding: 12px 32px; border: 0; border-bottom: 2px solid var(--line); border-radius: 0; background: transparent; font-size: 16px; }
.c-prod-tabs button:hover { border-color: var(--line); color: var(--rj-red); }
.c-prod-tabs button[aria-selected="true"] { background: transparent; border-color: var(--rj-red); color: var(--rj-red); font-weight: 400; }
.c-prod.card { position: relative; min-height: 452px; padding: 20px 24px 24px; flex-direction: column; align-items: center; gap: 8px; border: 0; border-radius: 12px; text-align: center; }
.c-prod.card .c-prod__tier {
  position: absolute; top: 20px; right: 24px;
  display: inline-block; margin: 0; font-size: 12px;
  padding: 3px 10px; border-radius: 4px;
  background: #f0f4f9; color: #6A6B6D;
}
.c-prod__ph {
  width: 250px; height: 250px; flex-basis: 250px; border-radius: 0;
  background-color: transparent;
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
}
.c-prod__ph svg { display: none; }
#panel-core .c-prod:nth-child(1) .c-prod__ph { background-image: url("img/products/rg-s7620.png"); }
#panel-core .c-prod:nth-child(2) .c-prod__ph { background-image: url("../img/RG-S7600-E系列.webp"); }
#panel-core .c-prod:nth-child(3) .c-prod__ph { background-image: url("../img/RG-N18000-E (Newton)系列.webp"); }
#panel-agg .c-prod:nth-child(1) .c-prod__ph { background-image: url("img/products/rg-mux-16.png"); }
#panel-agg .c-prod:nth-child(2) .c-prod__ph { background-image: url("../img/RG-MUX-8 系列.webp"); }
#panel-agg .c-prod:nth-child(3) .c-prod__ph { background-image: url("img/products/rg-mux-box-h.png"); }
#panel-access .c-prod:nth-child(1) .c-prod__ph { background-image: url("../img/RG-SF2920-16GT2XMG2XS-UP.webp"); }
#panel-access .c-prod:nth-child(2) .c-prod__ph { background-image: url("../img/RG-SF2920-24GT4XS-UP.webp"); }
#panel-access .c-prod:nth-child(3) .c-prod__ph { background-image: url("../img/RG-MF2920_IF2920_PF2920系列.webp"); }
/* 按类名绑定，避免卡片增删后 :nth-child 错位 */
#panel-power .c-prod__ph--hybrid { background-image: url("../img/光电混合缆（星空主机方案）.webp"); }
/* 管理平台：CS / AS 两张卡共用同一张 UNC 深色界面图（img/RG-UNC AS.png） */
#panel-mgmt .c-prod__ph { background-image: url("../img/RG-UNC AS.png"); }
.c-prod__model { font-size: 18px; }
.c-prod__name { font-size: 14px; }
.c-prod__spec { font-size: 16px; line-height: 24px; }
/* 整卡可点：型号链接的热区铺满整张卡（.c-prod.card 为 position:relative） */
.c-prod .c-prod__link::before { content: ""; position: absolute; inset: 0; z-index: 2; border-radius: 12px; }
.c-prod.card:hover { box-shadow: 0 10px 24px rgba(25,52,82,.10); }
.c-prod.card:hover .c-prod__link { color: inherit; }
.c-prod__link:focus-visible::before { outline: 2px solid #0175e8; outline-offset: 3px; }

.c-res { min-height: 132px; padding: 22px 24px; background: #f7f9fa; border: 0; border-radius: 12px; }
.c-res:hover { border-color: transparent; box-shadow: 0 10px 24px rgba(25,52,82,.08); }
.c-res__ico { display: none; }
.c-res__title { font-size: 17px; line-height: 26px; }
.c-res__meta { margin-top: 8px; font-size: 13px; }
.c-res__link { margin-top: 14px; }
.c-res__link .link-arrow { font-size: 15px; font-weight: 400; }
.c-res__link .link-arrow:hover{
  color: var(--rj-red);
}
#resources .grid--3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
@media (max-width: 992px) and (min-width: 769px) {
  #resources .grid--3 { grid-template-columns: repeat(2, minmax(0,1fr)); }
}

.c-contact { min-height: 867px; }
.c-contact .eyebrow { display: none; }
.c-contact h2 { font-size: 36px; line-height: 54px; }
.c-contact__grid { grid-template-columns: minmax(0,1fr) minmax(0,520px); gap: 64px; align-items: center; }
/* 咨询转化描述：左对齐、可换行、颜色 #9FB8D6 */
.c-contact .sec-desc {
  text-align: left; margin-left: 0; transform: none;
  color: #9FB8D6; white-space: normal; max-width: 34em;
}
.c-form { padding: 40px; border-radius: 4px; }
.field input, .field select, .field textarea { border-radius: 4px; }

/* Figma 页脚：524px 主体 + 71px 版权条 */
.legacy-footer { display: none !important; }
.ruijie-footer { padding: 0; min-height: 595px; background: #252525; color: #999; font-size: 14px; }
.ruijie-footer__main { position: relative; min-height: 524px; }
.ruijie-footer__hotlines {
  height: 111px; display: grid; grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.ruijie-footer__hotlines li { display: flex; align-items: center; }
.ruijie-footer__hotlines li:nth-child(2) { justify-content: center; }
.ruijie-footer__hotlines li:nth-child(3) { justify-content: flex-end; }
.ruijie-footer__hotlines a { display: inline-flex; align-items: center; gap: 19px; color: #fff; font-size: 16px; }
.ruijie-footer__hotlines img { width: 30px; height: 30px; object-fit: contain; }
.ruijie-footer__hotlines em { font-family: var(--font-num); font-style: italic; }
.ruijie-footer__content { display: grid; grid-template-columns: minmax(0,1fr) 204px; gap: 48px; padding-top: 50px; }
.ruijie-footer__columns { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 42px; }
.ruijie-footer__columns h4 { margin: 0 0 8px; color: #fff; font-size: 16px; line-height: 28px; font-weight: 400; }
.ruijie-footer__columns a { display: block; color: #999; font-size: 14px; line-height: 2.4; transition: color var(--dur-1) var(--ease-out); }
.ruijie-footer__columns a:hover { color: #fff; }
.ruijie-footer__social { display: grid; grid-template-columns: repeat(4, 42px); gap: 12px; align-content: start; padding-top: 74px; }
.ruijie-footer__social a { width: 42px; height: 42px; border-radius: 50%; transition: transform var(--dur-2) var(--ease-out), opacity var(--dur-2) var(--ease-out); }
.ruijie-footer__social a:hover { transform: translateY(-2px); opacity: .8; }
.ruijie-footer__social img { width: 42px; height: 42px; }
.ruijie-footer__legal { position: absolute; left: 0; right: 0; bottom: 54px; display: flex; justify-content: center; gap: 32px; }
.ruijie-footer__legal a { color: #999; font-size: 16px; }
.ruijie-footer__legal a:hover { color: #fff; }
.ruijie-footer__copyright { height: 71px; display: flex; align-items: center; justify-content: center; background: #212121; color: #666; font-size: 16px; }

@media (min-width: 1201px) {
  #cases { min-height: 1618px; }
  #products { min-height: 858px; }
  #resources { padding-bottom: 96px; }
}

@media (max-width: 1200px) {
  .site-nav { height: 64px; }
  :root { --nav-h: 64px; }
  .ruijie-header__utility { display: none; }
  .ruijie-header__main { height: 64px; }
  .ruijie-logo { width: 132px; height: 24px; flex-basis: 132px; }
  .ruijie-logo img { width: 132px; }
  .ruijie-header .nav-toggle { display: block; order: 3; margin-left: 14px; }
  .ruijie-header .nav-list {
    position: fixed; inset: 64px 0 auto 0; padding: 8px 24px 24px; margin: 0;
    z-index: var(--z-drawer); flex-direction: column; align-items: stretch; gap: 0;
    max-height: calc(100vh - 64px); overflow-y: auto; background: #fff;
    border-bottom: 1px solid var(--line); box-shadow: var(--sh-3);
    transform: translateY(-8px); opacity: 0; visibility: hidden;
    transition: opacity var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-out), visibility var(--dur-2);
  }
  .ruijie-header .nav-list.is-open { transform: none; opacity: 1; visibility: visible; }
  .ruijie-header .nav-list a { height: auto; padding: 14px 4px; border-bottom: 1px solid var(--line-soft); font-size: 15px; }
  .ruijie-header .nav-list a::after { display: none; }
  .ruijie-search { width: min(294px, 36vw); }
  .page-nav__inner { overflow: hidden; gap: 16px; }
  .page-nav__links { overflow-x: auto; justify-content: flex-start; padding-bottom: 4px; margin-left: 0; }
  .page-nav__cta { display: none !important; }
}

@media (max-width: 768px) {
  .ruijie-shell { width: calc(100% - 32px); }
  .ruijie-search { width: 40px; margin-left: auto; border: 0; }
  .ruijie-search input { display: none; }
  .page-nav { height: 52px; }
  .page-nav__crumbs { display: none; }
  .page-nav__links { gap: 22px; }
  .page-nav__links a { font-size: 14px; }
  .hero { height: auto; min-height: 0; padding-block: 64px 56px; }
  .hero h1 { font-size: var(--fs-display); line-height: var(--lh-display); white-space: normal; }
  .section .sec-desc { width: calc(100vw - 32px); }
  #resources .grid--3 { grid-template-columns: 1fr; }
  .c-contact { min-height: 0; }
  /* 移动端：咨询转化区强制单列，避免表单溢出/与清单重叠 */
  .c-contact__grid { grid-template-columns: minmax(0,1fr) !important; gap: var(--sp-10); align-items: stretch; }
  .ruijie-footer__main { min-height: 0; padding-block: 0 40px; }
  .ruijie-footer__hotlines { height: auto; grid-template-columns: 1fr; padding-block: 20px; gap: 16px; }
  .ruijie-footer__hotlines li,
  .ruijie-footer__hotlines li:nth-child(2),
  .ruijie-footer__hotlines li:nth-child(3) { justify-content: flex-start; }
  .ruijie-footer__content { grid-template-columns: 1fr; gap: 28px; padding-top: 32px; }
  .ruijie-footer__columns { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 28px 20px; }
  .ruijie-footer__social { grid-template-columns: repeat(6, 36px); padding-top: 0; }
  .ruijie-footer__social a,
  .ruijie-footer__social img { width: 36px; height: 36px; }
  .ruijie-footer__legal { position: static; flex-wrap: wrap; justify-content: flex-start; gap: 12px 24px; margin-top: 32px; }
  .ruijie-footer__legal a { font-size: 14px; }
  .ruijie-footer__copyright { height: auto; min-height: 71px; padding: 18px 16px calc(18px + env(safe-area-inset-bottom)); text-align: center; font-size: 12px; }
}

/* ============================================================
   移动端适配：痛点/亮点/产品卡/CTA 等在小屏的紧凑化
   ============================================================ */
@media (max-width: 768px) {
  /* 区块头上下间距收紧 */
  .section { padding-block: 56px; }
  .section .sec-head { margin-bottom: 28px; }

  /* 痛点卡片高度自适应 */
  #challenge .c-pain { min-height: 0; padding: 24px; }
  .c-pain__fact { font-size: 13px; }

  /* 亮点卡片高度自适应 */
  .c-hl { min-height: 0; }

  /* 场景可视区保持 118px 不变即可（图片覆盖） */

  /* 子方案卡片间距 */
  .c-sub { padding: 20px; }
  .c-sub__kv { font-size: 13px; }

  /* 产品卡：图片缩小，卡片高度自适应，按钮上方紧贴 */
  .c-prod.card { min-height: 0; padding: 16px 16px 20px; gap: 6px; }
  .c-prod__ph { width: 160px; height: 160px; flex-basis: 160px; }
  .c-prod__tier { top: 12px; right: 12px; font-size: 11px; padding: 2px 8px; }
  .c-prod__model { font-size: 16px; }
  .c-prod__name { font-size: 12px; }
  .c-prod__spec { font-size: 14px; line-height: 22px; }

  /* 产品 tabs：横向滚动，避免挤压 */
  .c-prod-tabs { flex-wrap: nowrap; justify-content: flex-start; overflow-x: auto; -webkit-overflow-scrolling: touch; padding-bottom: 4px; }
  .c-prod-tabs button { flex: 0 0 auto; padding: 10px 18px; font-size: 14px; }

  /* 资源下载：单列紧凑 */
  .c-res { min-height: 0; padding: 18px 20px; }
  .c-res__title { font-size: 15px; line-height: 22px; }
  .c-res__meta { font-size: 12px; margin-top: 6px; }
  .c-res__link { margin-top: 10px; }
  .c-res__link .link-arrow { font-size: 14px; }

  /* 客户案例：缩略图区与正文紧凑 */
  .c-case__ind { margin: 16px 16px 0; font-size: 12px; }
  .c-case__name { margin: 4px 16px 0; font-size: 17px; }
  .c-case__detail { font-size: 13px; }
  .c-case__desc { margin: 8px 16px 0; font-size: 14px; line-height: 22px; }
  .c-case__metrics { margin: 14px 16px 16px; }
  .c-case__metrics .metric__num { font-size: 22px; }
  #cases .c-case__ind { margin: 16px 16px 0; font-size: 12px; }
  #cases .c-case__name { margin: 4px 16px 0; font-size: 17px; }
  #cases .c-case__detail { font-size: 13px; }
  #cases .c-case__desc { margin: 8px 16px 0; font-size: 14px; line-height: 22px; }
  #cases .c-case__metrics { margin: 14px 16px 16px; }
  #cases .c-case__metrics .metric__num { font-size: 22px; }

  /* 顶部 stat 数据条 */
  .stat-strip { height: auto; }
  .stat-strip > div { padding: 18px 12px; }
  .stat-strip .metric__num { font-size: 24px; }
  .stat-strip .metric__num small { font-size: 14px; }
  .stat-strip .metric__label { font-size: 12px; }

  /* 架构图：移动端无内边距，图片自适应缩放；放大按钮更易点按 */
  .c-arch { padding: 0; }
  .c-arch__img { width: 100%; }
  .c-arch__zoom { display: inline-flex; top: 8px; right: 8px; padding: 8px 16px; font-size: 14px; }
  .c-arch__zoom-icon { font-size: 17px; }
  .c-arch__legend { gap: 12px 18px; font-size: 12px; }

  /* 项目背书条幅：小屏转为纵向信息列 */
  .proof-strip { padding-block: 28px; }
  .proof-strip__items { grid-template-columns: 1fr; }
  .proof-strip__item {
    min-height: 0; padding: 22px 4px;
  }
  .proof-strip__award {
    grid-template-columns: 42px minmax(0,250px) 42px;
    justify-content: center; min-height: 98px;
  }
  .proof-strip__wheat { width: 42px; height: 78px; }
  .proof-strip__award h3 { min-height: 0; }
  .proof-strip__metric { min-height: 44px; }
  .proof-strip__metric strong,
  .proof-strip__metric span { font-size: 36px; }
  .proof-strip__metric--standard strong { font-size: 20px; }

  /* 对比表：单元格更紧凑 */
  .table-wrap { border-radius: 8px; }
  .tbl th, .tbl td { padding: 9px 10px; line-height: 18px; font-size: 13px; }
  .tbl .col-dim { width: auto; }

  /* 表单字段标签/输入更紧凑 */
  .field { margin-bottom: 16px; }
  .field > label { font-size: 13px; margin-bottom: 6px; }
  .field input, .field select, .field textarea { height: 42px; font-size: 14px; }

  /* 移动端浮动 CTA 不再额外占位（mobile nav 已有 #main 跳转） */
  body { padding-bottom: 64px; }

  /* 资源下载标题尺寸 */
  #resources .sec-head h2 { font-size: 22px; line-height: 1.35; }
}

@media (max-width: 480px) {
  .ruijie-shell { width: calc(100% - 24px); }
  .hero__actions .btn { width: 100%; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__stats { grid-template-columns: 1fr; }
  .hero__stat { padding: 18px 16px; }
  .hero__stat .metric__num { font-size: 24px; }
  .c-form { padding: 20px 16px; }
  .c-prod__ph { width: 130px; height: 130px; flex-basis: 130px; }
  /* 面包屑在 ≤480 不显示分隔符，链接可滚动 */
  .page-nav__inner { gap: 12px; }
  .page-nav__links { gap: 16px; }
}

/* ------------------------------------------------------------
   官网公共头尾 / Cookie / 右侧浮层隔离：专题页样式不得污染
   ------------------------------------------------------------ */
.ys_header img,
.ys_header svg,
.cookie-banner img,
.l_foot img,
.ys_footer img,
.l_sidenav img,
.l_back img,
.n-consult img {
  max-width: none;
  height: auto;
  display: inline-block;
  vertical-align: middle;
}
.cookie-banner {
  box-sizing: content-box;
  overflow: visible !important;
  max-height: none !important;
}
.cookie-banner,
.cookie-banner * {
  box-sizing: content-box;
}
.cookie-banner p {
  margin: 0;
  line-height: normal;
}
.cookie-banner img {
  width: 24px;
  height: auto;
  display: inline-block;
}
.ys_header a {
  text-decoration: none;
}
.ys_header ul,
.ys_header ol {
  margin: 0;
  padding: 0;
  list-style: none;
}
.l_sidenav,
.l_sidenav *,
.l_back,
.l_back *,
.n-consult,
.n-consult * {
  box-sizing: content-box;
}
.l_sidenav img,
.l_back img {
  width: 24px;
  max-width: none;
  height: auto;
  display: inline-block;
}
.l_sideli p,
.l_back p {
  margin: 6px 0 0;
  font-size: 12px;
  line-height: 1.75;
  color: #333;
}
.l_sideli a,
.l_back {
  display: block;
  width: 100%;
  text-align: center;
  padding: 10px 0;
  color: inherit;
  text-decoration: none;
}