/* ==========================================================================
   ZTCCloud Corporate Theme v0.3 — 深度接入设计系统 V2.2 tokens（colors/motif 原文）
   纪律：反 AI 味（不用无语义的泛化发光/玻璃拟态）；同品牌色系渐变与页面动效按内容语义使用
   行动色纪律（colors.css §Semantic）：承载文字的元素用深蓝 --ztc-action（AA 达标），
   主蓝 #008ED3 只做装饰识别（眉标短线 / DNA 线 / 大字标题）。
   ========================================================================== */

:root {
    /* ── 设计系统 V2.2 原文 token（tokens/colors.css） ── */
    --ztc-brand-primary: #008ED3;   /* 主蓝 — 装饰识别（accent-bar/DNA线/大字） */
    --ztc-brand-navy:    #0067B4;   /* 深蓝 — 行动色/权威场景 */
    --ztc-brand-cyan:    #61CCF0;   /* 青蓝 — 科技点缀 */
    --ztc-brand-amber:   #FFC000;   /* 金橙 — 关键数据锚点（克制） */
    --ztc-white:         #FFFFFF;
    --ztc-bg:            #F4F5F6;
    --ztc-border:        #E4E7EC;
    --ztc-text:          #2D3142;   /* 正文 — 严禁纯黑 */
    --ztc-text-muted:    #58595B;
    --ztc-text-on-dark:  #FFFFFF;
    --ztc-info-ink:      #00669A;
    --ztc-action-ink:    #FFFFFF;
    --ztc-surface-inverse: var(--ztc-brand-navy);
    --ztc-surface-inverse-deep: #141B2B;
    /* 语义层（组件引用这层）：action=深蓝（文字场景 AA），accent-bar=主蓝（纯装饰） */
    --ztc-action:        var(--ztc-brand-navy);
    --ztc-action-hover:  #00558F;
    --ztc-accent-bar:    var(--ztc-brand-primary);
    --ztc-tint-info-bg:  rgba(0,142,211,0.10);
    /* DNA 线母题（tokens/motif.css）：描边不填充、限品牌色 */
    --ztc-dna-stroke:    var(--ztc-brand-primary);
    --ztc-dna-stroke-subtle: var(--ztc-brand-cyan);

    /* ── Banner 语义系统（2026-08-31） ──
       luminous：一级入口 / 聚合 / 发现页。取书籍聚合页获认可的清亮蓝为基准；
       balanced：咨询 / 产品等标准业务详情，既保持白字承载力，也避免近半屏停在近黑蓝；
       authority：关于我们 / AI+ / 长文 / 媒体与 CTA 等权威、沉浸场景。
       清亮配方把浅色光感放在右侧，左侧文字区叠加轻微压暗层，避免白色小字落在天青区。 */
    --ztc-banner-luminous:
        linear-gradient(90deg, rgba(3, 47, 82, .18) 0%, rgba(3, 47, 82, .06) 48%, transparent 72%),
        radial-gradient(circle at 75% 17%, rgba(255, 255, 255, .22), transparent 27%),
        radial-gradient(circle at 95% 92%, rgba(78, 215, 230, .27), transparent 34%),
        linear-gradient(124deg, #0067B4 0%, #008ED3 62%, #4FC2DF 100%);
    --ztc-banner-balanced:
        radial-gradient(circle at 84% 18%, rgba(97, 204, 240, .24), transparent 30%),
        radial-gradient(circle at 98% 88%, rgba(79, 194, 223, .16), transparent 34%),
        linear-gradient(122deg, #0A466F 0%, #0067B4 52%, #008ED3 84%, #4FC2DF 128%);
    --ztc-banner-authority:
        radial-gradient(circle at 84% 18%, rgba(97, 204, 240, .20), transparent 31%),
        linear-gradient(120deg, #07203C 0%, #0A3A66 48%, #0067B4 100%);
    --ztc-banner-h1-display:  clamp(54px, 5.4vw, 76px);
    --ztc-banner-h1-feature:  clamp(48px, 5vw, 68px);
    --ztc-banner-h1-standard: clamp(42px, 4.6vw, 60px);
    --ztc-banner-lead:        clamp(18px, 1.5vw, 21px);
    --ztc-banner-summary:     clamp(16px, 1.1vw, 17px);
    --ztc-banner-label:       12px;

    /* 内容页文字阶梯（2026-09-02 文字排版规范，Haning 指示统一内页排版；
       字号映射设计系统 --ztc-ui-* 阶梯 11/12/13/14/16/18/20/24/30/40，正文与手机可读性优先）。
       规则全文见 site/DESIGN-BASELINE.md「内容页文字排版规范」。 */
    --ztc-fs-section: clamp(28px, 3.2vw, 36px);  /* 页面分区大标题（介于 banner H1 与章节 H2 之间） */
    --ztc-fs-h2:      clamp(26px, 2.6vw, 30px);  /* 章节标题（= ui-3xl 30px 上限） */
    --ztc-fs-h3:      20px;                      /* 小节/卡片标题（ui-xl） */
    --ztc-fs-h4:      18px;                      /* 段内小标题（ui-lg） */
    --ztc-fs-body:    16px;                      /* 正文（ui-md；长文与手机端不下调） */
    --ztc-fs-small:   14px;                      /* 次级正文/卡片描述/表格（ui-base） */
    --ztc-fs-caption: 13px;                      /* 辅助说明（ui-sm） */
    --ztc-fs-label:   12px;                      /* 眉标/分组标签（ui-xs，配大写+字距） */
    --ztc-fs-micro:   11px;                      /* 系统地板：仅序号/徽标，禁止连续文字（ui-2xs） */
    --ztc-lh-heading: 1.3;
    --ztc-lh-lead:    1.8;
    --ztc-lh-body:    1.9;                       /* 中文长文行高 */
    --ztc-lh-dense:   1.7;                       /* 表格/列表行高 */

    /* 兼容存量：旧 hero 变量继续代表 authority；新页面必须选择上面的语义 token。
       2026-09-02 清理：hero-bg / hero-lead 两个零引用变量已删除；pad/eyebrow/h1/art-opacity/minh 仍有 45+ 模板活跃引用，保留。 */
    --ztc-hero-pad:     156px 0 88px;
    --ztc-hero-eyebrow: #7FD4F0;   /* 眉标青（13px/700/字距.14em/大写 在各页模板） */
    --ztc-hero-h1:      var(--ztc-banner-h1-standard);
    --ztc-hero-art-opacity: .2;    /* 右侧水印不透明度基线 */
    --ztc-hero-minh: 480px;        /* v1.1.1：深底 hero 最小高度——内容少的页不再「矮一截」 */

    /* ── 主题别名（存量 class 引用这层） ── */
    --ztc-brand: var(--ztc-brand-primary);
    --ztc-navy: var(--ztc-brand-navy);
    --ztc-navy-deep: #0A2B4C;
    --ztc-cyan: var(--ztc-brand-cyan);
    --ztc-serif: 'Source Serif 4', 'Noto Serif SC Core', 'Noto Serif SC Reading', 'Noto Serif SC', 'Songti SC', Georgia, serif;
    --ztc-sans: 'Source Sans 3', 'Noto Sans SC Core', 'Noto Sans SC Reading', 'Noto Sans SC', 'PingFang SC', system-ui, sans-serif;
    --ztc-radius: 4px;
    --ztc-shadow-hover: 0 12px 32px rgba(10, 43, 76, 0.14);
    --ztc-shadow-panel: 0 16px 48px rgba(10, 43, 76, 0.16);
    --ztc-safe-top: env(safe-area-inset-top, 0px);
    --ztc-safe-right: env(safe-area-inset-right, 0px);
    --ztc-safe-bottom: env(safe-area-inset-bottom, 0px);
    --ztc-safe-left: env(safe-area-inset-left, 0px);
    --ztc-shell-header-inset-top: max(10px, var(--ztc-safe-top));
    --ztc-shell-header-size: 70px;
    --ztc-shell-sticky-gap: 6px;
    --ztc-header-h: 80px;   /* 胶囊 70px + 上沿 10px */
    --ztc-topbar-h: 38px;
    /* 共享壳层安全区：页内吸顶导航必须越过固定胶囊页头并保留 6px 呼吸缝。 */
    --ztc-shell-sticky-top: calc(var(--ztc-shell-header-inset-top) + var(--ztc-shell-header-size) + var(--ztc-shell-sticky-gap));
    --ztc-shell-rail-sticky-top: calc(var(--ztc-shell-sticky-top) + 42px);
    --ztc-shell-float-right: max(16px, var(--ztc-safe-right));
    --ztc-shell-float-bottom: max(16px, var(--ztc-safe-bottom));
}

@media (max-width: 767px) {
    :root {
        --ztc-banner-h1-display:  clamp(42px, 12vw, 50px);
        --ztc-banner-h1-feature:  clamp(40px, 12vw, 48px);
        --ztc-banner-h1-standard: clamp(36px, 10.5vw, 44px);
        --ztc-banner-lead:        clamp(16px, 4.6vw, 17px);
        --ztc-banner-summary:     16px;
    }
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size:16px; scroll-behavior: smooth; font-synthesis: none; }
body { font-family: var(--ztc-sans); color: var(--ztc-text); line-height: 1.6; background: #fff; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; transition: color .2s; }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3 { font-family: var(--ztc-serif); font-weight: 600; line-height: 1.15; text-wrap: balance; }

:where(a, button, summary, input, select, textarea, [tabindex]):focus-visible {
    outline: 2px solid #fff;
    outline-offset: 2px;
    box-shadow: 0 0 0 5px #0067b4;
}
.ztc-skip-link {
    position: fixed;
    z-index: 9999;
    top: 12px;
    left: 18px;
    padding: 10px 16px;
    color: #fff;
    border-radius: 4px;
    background: var(--ztc-navy-deep);
    transform: translateY(-150%);
    transition: transform .18s ease;
}
.ztc-skip-link:focus { transform: none; }

.ztc-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- 眉标（设计系统编辑语言：英文小字距大写；文字用深蓝保 AA，短线用主蓝装饰） ---------- */
.ztc-eyebrow {
    font-size: 12px; letter-spacing: .22em; font-weight: 600;
    color: var(--ztc-action); margin-bottom: 16px;
}
.ztc-eyebrow::before { content: ''; display: inline-block; width: 20px; height: 2px; background: var(--ztc-accent-bar); vertical-align: middle; margin-right: 10px; }
.ztc-eyebrow-light { color: var(--ztc-cyan); }
.ztc-eyebrow-light::before { background: var(--ztc-cyan); }

/* ---------- 按钮（胶囊形态；文字按钮用深蓝 action 保 AA，主蓝仅 hover 装饰；导航胶囊按钮见主导航区） ---------- */
.ztc-btn-solid-pill, .ztc-btn-line-pill, .ztc-btn-primary-pill, .ztc-btn-ghost-pill, .ztc-btn-outline, .ztc-btn-nav, .ztc-btn-nav-ghost {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    min-height: 44px; line-height: 1.5; border-radius: 999px; cursor: pointer; border: 1px solid transparent;
    transition: color .2s ease, background-color .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.ztc-btn-solid-pill { padding: 13px 40px; background: #fff; color: var(--ztc-text); font-size:14px; }
.ztc-btn-solid-pill:hover { background: var(--ztc-action); color: #fff; }
.ztc-btn-line-pill { padding: 13px 40px; border-color: rgba(255,255,255,.65); color: #fff; font-size:14px; background: transparent; font-family: inherit; }
.ztc-btn-line-pill:hover { background: rgba(255,255,255,.14); border-color: #fff; }
.ztc-btn-primary-pill { padding: 14px 44px; background: var(--ztc-action); color: #fff; font-size: 16px; }
.ztc-btn-primary-pill:hover { background: var(--ztc-action-hover); }
/* 浅底描边胶囊（v1.2.0：line-pill 的浅底姊妹件——白描边在深底用，深蓝描边在浅底用） */
.ztc-btn-ghost-pill { padding: 13px 40px; border-color: rgba(0,103,180,.45); color: var(--ztc-action); font-size:14px; }
.ztc-btn-ghost-pill:hover { background: var(--ztc-tint-info-bg); border-color: var(--ztc-action); }
.ztc-btn-outline { padding: 10px 26px; border-color: var(--ztc-action); color: var(--ztc-action); font-size:14px; }
.ztc-btn-outline:hover { background: var(--ztc-action); color: #fff; }
.ztc-text-link { color: var(--ztc-action); font-size: 14px; font-weight: 600; }
.ztc-text-link:hover { color: var(--ztc-action-hover); }

/* DNA 线分隔（品牌母题）：区块标题下点缀 */
.ztc-dna-rule { display: block; margin-top: 14px; }
.ztc-cta .ztc-dna-rule { margin-left: auto; margin-right: auto; margin-bottom: 6px; }

/* section-head 统一组件（v1.6.3 Haning：英文小字眉标 → 左竖线标题 → DNA 线 → 副文；
   h2 边距清零——此前各 h2 自带 margin 不同导致 DNA 间距每节都不一样） */
.ztc-bar-title { display: flex; align-items: center; margin: 18px 0 14px; }
.ztc-bar-title::before { content: ""; width: 4px; height: 32px; background: var(--ztc-brand); margin-right: 16px; flex-shrink: 0; }
.ztc-bar-title h2 { margin: 0; }
/* v1.6.5：小节自定 h2 margin（.ztc-clients h2 / .ztc-intro-text h2）特异度同级但位置靠后会顶掉上行，
   导致竖条随 flex 居中相对文字下偏（「成功客户跟竖线错位」根因）+ DNA 间距又被撑开——此处点名压回 */
.ztc-clients .ztc-bar-title h2, .ztc-intro-text .ztc-bar-title h2 { margin: 0; }
/* v1.6.6：竖条生长动画（Haning：主页标题竖线缺动效）——对齐统领页/领域页 bar-title scaleY 效果：
   初始 scaleY(0) 收在底部，随 reveal 容器 is-inview 延迟 .25s 向上长开；reveal 直接挂在 bar-title 上（成功客户节）同样生效 */
.ztc-reveal .ztc-bar-title::before, .ztc-reveal.ztc-bar-title::before { transform: scaleY(0); transform-origin: 50% 100%; transition: transform .7s ease .25s; }
.ztc-reveal.is-inview .ztc-bar-title::before, .ztc-reveal.is-inview.ztc-bar-title::before { transform: scaleY(1); }
.ztc-section-head .ztc-dna-rule, .ztc-intro-text .ztc-dna-rule, .ztc-clients-intro .ztc-dna-rule { margin: 2px 0 14px; }

/* ---------- 顶部工具栏（v4：产品站同款近黑 #05090E） ---------- */
.ztc-topbar { background: #05090E; font-size: 13px; color: rgba(255,255,255,.85); position: relative; z-index: 120; }
.ztc-topbar-inner { display: flex; justify-content: space-between; height: var(--ztc-topbar-h); align-items: center; }
.ztc-topbar a { padding: 0 14px; opacity: .8; }
.ztc-topbar a:hover { opacity: 1; color: var(--ztc-cyan); }
.ztc-topbar a.is-brand { font-weight: 600; opacity: 1; }
.ztc-topbar-left a:first-child { padding-left: 0; }
.ztc-topbar-right a:last-child { padding-right: 0; }

/* ---------- 主导航 v4：产品站同款悬浮胶囊（深色玻璃罩 hero / 滚动后白实色胶囊） ---------- */
.ztc-header { z-index: 110; }
.ztc-header--overlay { position: absolute; top: calc(var(--ztc-topbar-h) + 10px); left: 0; right: 0; color: #fff; }
.ztc-header--overlay .ztc-nav-link, .ztc-header--overlay .ztc-dropdown-toggle, .ztc-header--overlay .ztc-icon-link { color: rgba(255,255,255,.92); }
.ztc-header--overlay.is-solid { position: fixed; top: var(--ztc-shell-header-inset-top); color: var(--ztc-text); }
.ztc-header--overlay.is-solid .ztc-nav-link,
.ztc-header--overlay.is-solid .ztc-dropdown-toggle,
.ztc-header--overlay.is-solid .ztc-icon-link { color: var(--ztc-text); }
/* 双 logo：玻璃态白版，白实色态原色版 */
.ztc-logo { position: relative; display: flex; align-items: center; flex: none; }
.ztc-logo img { height: 36px; width: auto; transition: opacity .25s; }
.ztc-logo-color { position: absolute; left: 0; top: 50%; transform: translateY(-50%); opacity: 0; }
.ztc-header--overlay.is-solid .ztc-logo-white,
.ztc-header--solid .ztc-logo-white { opacity: 0; }
.ztc-header--overlay.is-solid .ztc-logo-color,
.ztc-header--solid .ztc-logo-color { opacity: 1; }
.ztc-header--solid { position: sticky; top: var(--ztc-shell-header-inset-top); margin-top: var(--ztc-shell-header-inset-top); color: var(--ztc-text); } /* v1.2.0：margin-top 补首屏间距——浅底页首屏胶囊不再贴黑色顶栏（Haning 08-27 案例详情页发现） */

/* 胶囊本体（产品站参数：高 70 / 圆角 35 / blur 20 / 半透明白玻璃） */
.ztc-header-inner {
    display: flex; align-items: center; gap: 30px;
    max-width: 1320px; margin: 0 auto; height: 70px; padding: 0 14px 0 26px;
    border-radius: 35px; border: 1px solid transparent;
    -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
    transition: background .3s, border-color .3s, box-shadow .3s;
}
.ztc-header--overlay .ztc-header-inner { background: rgba(6,24,44,.38); border-color: rgba(255,255,255,.22); }
.ztc-header--overlay.is-solid .ztc-header-inner,
.ztc-header--solid .ztc-header-inner {
    background: rgba(255,255,255,.94); border-color: var(--ztc-border);
    box-shadow: 0 10px 34px rgba(10,43,76,.13);
}

.ztc-nav { flex: 1; }
.ztc-nav-list { display: flex; list-style: none; gap: 4px; justify-content: center; }
/* 面板定位上下文 = .ztc-header（三态均为 positioned），面板按视口居中，不随菜单项偏移 */
.ztc-nav-item { position: static; }
.ztc-nav-trigger { display: flex; align-items: center; }
.ztc-nav-toggle { display: inline-flex; width: 44px; min-width: 44px; height: 44px; align-items: center; justify-content: center; margin-left: -8px; padding: 0; border: 0; border-radius: 50%; background: transparent; color: inherit; cursor: pointer; }
.ztc-nav-toggle:hover { background: color-mix(in srgb, currentColor 7%, transparent); }
.ztc-nav-trigger :is(a, button):focus-visible { outline: 2px solid currentColor; outline-offset: 2px; }
html:not(.ztc-nav-ready) .ztc-nav-toggle { visibility: hidden; }
.ztc-nav-link { display: flex; align-items: center; gap: 5px; padding: 23px 16px; color: inherit; background: none; border: 0; font-family: var(--ztc-sans); font-size: 16px; font-weight: 600; cursor: pointer; }
.ztc-nav-item:not([data-type="link"]) .ztc-nav-link { padding-inline: 12px 8px; min-height: 44px; }
.ztc-nav-item:hover .ztc-nav-link,
.ztc-nav-item.is-open .ztc-nav-link { color: var(--ztc-cyan); }
.ztc-header--overlay.is-solid .ztc-nav-item:hover .ztc-nav-link,
.ztc-header--overlay.is-solid .ztc-nav-item.is-open .ztc-nav-link,
.ztc-header--solid .ztc-nav-item:hover .ztc-nav-link,
.ztc-header--solid .ztc-nav-item.is-open .ztc-nav-link { color: var(--ztc-action); }
.ztc-caret { opacity: .55; transition: transform .25s ease, opacity .25s ease; }
.ztc-nav-item.is-open .ztc-caret,
.ztc-dropdown:hover .ztc-caret,
.ztc-dropdown.is-open .ztc-caret { transform: rotate(180deg); opacity: .9; }
/* hover 指示条：面板开启感知（产品站 nav 下划线同款；overlay 青蓝 / 实色深蓝） */
.ztc-nav-link { position: relative; }
.ztc-nav-link::after {
    content: ''; position: absolute; left: 16px; right: 16px; bottom: 14px; height: 2px;
    background: var(--ztc-cyan); transform: scaleX(0); transform-origin: left center; transition: transform .25s ease;
}
.ztc-nav-item:not([data-type="link"]) .ztc-nav-link::after { left: 12px; right: 8px; }
.ztc-header--overlay.is-solid .ztc-nav-link::after,
.ztc-header--solid .ztc-nav-link::after { background: var(--ztc-action); }
.ztc-nav-item:hover .ztc-nav-link::after,
.ztc-nav-item.is-open .ztc-nav-link::after { transform: scaleX(1); }
/* 当前分区指示（2026-09-03 Haning 定）：只做颜色变化、不出下划线（含悬停当前项时）——下划线专属于 hover 其他项的临时反馈，与已选定态形成区别 */
.ztc-nav-item.is-current .ztc-nav-link { color: var(--ztc-cyan); }
.ztc-header--overlay.is-solid .ztc-nav-item.is-current .ztc-nav-link,
.ztc-header--solid .ztc-nav-item.is-current .ztc-nav-link { color: var(--ztc-action); }
.ztc-dropdown.is-current .ztc-dropdown-toggle { color: var(--ztc-cyan); }
.ztc-header--overlay.is-solid .ztc-dropdown.is-current .ztc-dropdown-toggle,
.ztc-header--solid .ztc-dropdown.is-current .ztc-dropdown-toggle { color: var(--ztc-action); }
.ztc-nav-item.is-current .ztc-nav-link::after,
.ztc-nav-item.is-current:hover .ztc-nav-link::after,
.ztc-nav-item.is-current.is-open .ztc-nav-link::after { transform: scaleX(0); }

/* Mega 面板：统一深蓝底色，避免下层标题与图片干扰菜单阅读。 */
.ztc-panel {
    position: absolute; left: 50%; transform: translate(-50%, 10px); top: 100%;
    width: min(1120px, 94vw); max-width: calc(100% - 40px); color: #fff;
    background: #00467E;
    border: 1px solid rgba(255,255,255,.28); border-radius: 16px;
    box-shadow: 0 24px 64px rgba(4,24,44,.35);
    max-height: calc(100dvh - 150px); overflow-y: auto; overscroll-behavior: contain;
    opacity: 0; visibility: hidden; transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}
.ztc-nav-item.is-open .ztc-panel { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.ztc-nav-item.is-open .ztc-nav-toggle,
.ztc-nav-item.is-current .ztc-nav-toggle { color: var(--ztc-cyan); }
.ztc-header--solid .ztc-nav-toggle,
.ztc-header--overlay.is-solid .ztc-nav-toggle { color: var(--ztc-text); }
.ztc-header--solid .ztc-nav-item:is(.is-open, .is-current) .ztc-nav-toggle,
.ztc-header--overlay.is-solid .ztc-nav-item:is(.is-open, .is-current) .ztc-nav-toggle { color: var(--ztc-action); }

/* 洞察菜单：栏目、议题与研究同时可见，内容变化不再引发面板切换跳高。 */
.ztc-panel--insight { width: min(1160px, 94vw); padding: 20px 32px 28px; color: var(--ztc-text-on-dark); }
.ztc-insight-panel-top { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-bottom: 15px; border-bottom: 1px solid color-mix(in srgb, currentColor 20%, transparent); }
.ztc-insight-panel-top p { margin: 0; font-family: var(--ztc-serif); font-size: 20px; font-weight: 600; line-height: 1.15; }
.ztc-insight-panel-top a { display: inline-flex; min-height: 44px; align-items: center; gap: 12px; font-size: 14px; color: inherit; }
.ztc-insight-panel-grid { display: grid; grid-template-columns: 202px minmax(0, 1fr) 290px; gap: 28px; padding-top: 23px; }
.ztc-insight-panel-grid--plain { grid-template-columns: 1fr 2fr; }
.ztc-insight-panel-grid > div { min-width: 0; }
.ztc-insight-panel-label { margin: 0 0 13px; font-size: 12px; font-weight: 500; letter-spacing: .08em; line-height: 1.6; color: color-mix(in srgb, currentColor 78%, transparent); }
.ztc-panel--insight ul { list-style: none; padding: 0; margin: 0; }
.ztc-insight-sections ul a,
.ztc-insight-topics ul a { display: flex; min-height: 44px; align-items: center; gap: 12px; padding: 8px 10px; margin-inline: -10px; border-radius: 6px; color: inherit; font-size: 15px; line-height: 1.6; transition: background .15s ease; }
.ztc-insight-sections ul a { font-weight: 600; }
.ztc-insight-sections ul a > svg:first-child { color: var(--ztc-cyan); flex: none; }
.ztc-insight-topics { border-left: 1px solid color-mix(in srgb, currentColor 20%, transparent); padding-left: 28px; }
.ztc-insight-topics ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 26px; }
.ztc-insight-link-arrow { flex: none; margin-left: auto; opacity: .55; transition: transform .18s ease, opacity .18s ease; }
.ztc-insight-topics ul a { gap: 10px; }
.ztc-insight-topics .ztc-insight-link-arrow { margin-left: 0; }
.ztc-insight-panel-grid ul a:is(:hover, [aria-current="page"]) { background: color-mix(in srgb, currentColor 10%, transparent); }
.ztc-panel--insight a:hover .ztc-insight-link-arrow { opacity: 1; transform: translateX(3px); }
.ztc-insight-index-link { display: inline-flex; min-height: 44px; align-items: center; gap: 10px; margin-top: 8px; color: inherit; font-size: 13px; }
.ztc-insight-feature { border-left: 1px solid color-mix(in srgb, currentColor 20%, transparent); padding-left: 28px; }
.ztc-insight-feature-link { display: grid; grid-template-columns: 82px minmax(0, 1fr); gap: 18px; align-items: start; color: inherit; }
.ztc-insight-feature-link:not(:has(img)) { grid-template-columns: 1fr; }
.ztc-insight-feature-cover { display: grid; place-items: center; aspect-ratio: 3 / 4; overflow: hidden; border-radius: 2px; background: color-mix(in srgb, currentColor 9%, transparent); }
.ztc-insight-feature-cover img { width: 140%; max-width: none; height: auto; transition: transform .2s ease; }
.ztc-insight-feature-copy strong { display: block; font-family: var(--ztc-serif); font-size: 19px; line-height: 1.55; font-weight: 600; text-wrap: pretty; }
.ztc-insight-year { display: inline-block; font-size: .84em; white-space: nowrap; }
.ztc-insight-title-phrase { display: inline-block; white-space: nowrap; }
.ztc-insight-feature-copy > span { display: flex; min-height: 44px; align-items: center; gap: 10px; margin-top: 8px; font-size: 13px; }
.ztc-insight-feature-link:hover img { transform: translateY(-2px); }
.ztc-insight-feature-note { margin: 12px 0 0; font-size: 12px; line-height: 1.7; color: color-mix(in srgb, currentColor 78%, transparent); }
.ztc-panel :is(a, button):focus-visible { outline: 2px solid var(--ztc-white); outline-offset: 4px; box-shadow: none; }
@media (prefers-reduced-motion: reduce) {
    .ztc-nav-toggle *, .ztc-panel, .ztc-panel--insight * { transition: none !important; }
}
.ztc-panel-inner { display: grid; grid-template-columns: 250px 240px 1fr; gap: 40px; padding: 40px 44px; }
.ztc-panel-left .ztc-panel-heading {
    margin-bottom: 12px; color: #fff; font-family: var(--ztc-serif);
    font-size:20px; font-weight: 600; line-height: 1.15;
}
.ztc-panel-left .ztc-panel-heading::after,
.ztc-insight-panel-top p::after {
    content: ''; display: block; width: 64px; height: 4px; margin-top: 12px;
    /* DNA 点划节奏（深底上用青蓝保持可读） */
    background-image: radial-gradient(circle at 2px 2px, var(--ztc-cyan) 2px, transparent 2.6px),
        linear-gradient(var(--ztc-cyan), var(--ztc-cyan));
    background-size: 10px 4px, 26px 2px;
    background-position: 0 0, 14px 1px;
    background-repeat: no-repeat;
}
.ztc-panel-left p { font-size: 13px; color: rgba(255,255,255,.72); margin-bottom: 18px; line-height: 1.8; }
.ztc-panel-leftlink { font-size: 13px; color: var(--ztc-cyan); font-weight: 600; }
.ztc-panel-leftlink:hover { color: #fff; }
.ztc-panel-tabs { display: flex; flex-direction: column; gap: 3px; border-right: 1px solid rgba(255,255,255,.14); padding-right: 24px; }
/* 案例面板压平（v1.4.1）：单 tab 时隐藏 tab 列，行业项直出；grid 轨道同步收敛（display:none 不收轨道） */
.ztc-panel--notabs .ztc-panel-tabs { display: none; }
.ztc-panel--notabs .ztc-panel-inner { grid-template-columns: 250px 1fr; }
/* 行业项小图标（v1.4.1） */
.ztc-sub-main { display: inline-flex; align-items: center; gap: 6px; min-width: 0; }
.ztc-sub-ico { display: inline-flex; flex: 0 0 auto; align-items: center; opacity: .72; }
.ztc-panel-content a .ztc-sub-ico { color: #9CC8EE; }
.ztc-panel-content a:hover .ztc-sub-ico { opacity: 1; color: #fff; }
.ztc-drawer-group a .ztc-sub-ico { vertical-align: -2px; margin-right: 6px; }
/* 案例面板行业项升级（v1.4.6 Haning：对齐「支持/咨询」一级目录行效果——26px 图标位+15px 字+行 hover） */
.ztc-panel--notabs .ztc-panel-content a { font-size:16px; padding: 11px 14px; margin: 0 -14px; }
.ztc-panel--notabs .ztc-sub-main { gap: 12px; }
.ztc-panel--notabs .ztc-panel-content a .ztc-sub-ico { width: 26px; height: 26px; justify-content: center; opacity: 1; color: #fff; }
.ztc-panel--notabs .ztc-panel-content a:hover .ztc-sub-ico { color: var(--ztc-cyan); }
.ztc-panel-tab {
    display: flex; align-items: center; gap: 12px;
    background: none; border: 1px solid transparent; text-align: left; padding: 11px 14px; font-size:16px;
    font-family: var(--ztc-sans); color: rgba(255,255,255,.88); border-radius: 8px;
    cursor: pointer; transition: all .18s; white-space: nowrap; width: 100%;
    text-decoration: none; /* v0.7.1：tab 可为 a 标签（点击跳领域页），去默认下划线 */
}
/* 面板内图标：去芯片，产品站同款纯线性白图标（首页产品 pill 的芯片由 .ztc-products-tab 自带规则覆盖，不受影响） */
.ztc-tab-ico {
    display: inline-flex; align-items: center; justify-content: center;
    width: 26px; height: 26px; flex-shrink: 0; color: #fff; transition: color .18s;
}
.ztc-tab-name { flex: 1; }
.ztc-tab-arrow { opacity: 0; color: var(--ztc-cyan); transition: all .18s; margin-left: auto; }
.ztc-panel-tab:hover { background: rgba(255,255,255,.08); color: #fff; }
.ztc-panel-tab.is-active { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.25); color: #fff; font-weight: 600; }
.ztc-panel-tab:hover .ztc-tab-arrow, .ztc-panel-tab.is-active .ztc-tab-arrow { opacity: 1; }
.ztc-panel-tab.is-active .ztc-tab-ico { color: var(--ztc-cyan); }
.ztc-panel-content { display: none; list-style: none; columns: 2; column-gap: 44px; }
.ztc-panel-content.is-active { display: block; }
.ztc-panel-content a {
    display: flex; align-items: center; justify-content: space-between; gap: 8px;
    padding: 10px 12px; margin: 0 -12px; border-radius: 6px;
    font-size: 14px; color: rgba(255,255,255,.85); break-inside: avoid; white-space: nowrap;
}
.ztc-panel-content a span { overflow: hidden; text-overflow: ellipsis; }
.ztc-item-arrow { opacity: 0; color: var(--ztc-cyan); transition: all .18s; flex-shrink: 0; }
.ztc-panel-content a:hover { color: #fff; background: rgba(255,255,255,.1); }
.ztc-panel-content a:hover .ztc-item-arrow { opacity: 1; }

/* 动态 Mega Menu：以真实 CMS 分类与最新内容组成，不复制新闻正文。 */
.ztc-panel--updates { width: min(1180px, 94vw); }
.ztc-updates-panel {
    display: grid;
    grid-template-columns: 230px minmax(0, 1fr) 300px;
    gap: 34px;
    padding: 34px 38px;
}
.ztc-updates-categories {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}
.ztc-updates-categories > a:not(.ztc-updates-featured) {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr) 16px;
    align-items: center;
    gap: 10px;
    min-height: 78px;
    padding: 12px 13px;
    color: #fff;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 10px;
    background: rgba(255,255,255,.035);
    transition: background .2s ease, border-color .2s ease, transform .2s ease;
}
.ztc-updates-categories > a:not(.ztc-updates-featured):hover {
    background: rgba(255,255,255,.1);
    border-color: rgba(255,255,255,.28);
    transform: translateY(-1px);
}
.ztc-updates-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    color: var(--ztc-cyan);
}
.ztc-updates-categories strong,
.ztc-updates-categories small { display: block; }
.ztc-updates-categories strong { margin-bottom: 4px; font-size: 14px; }
.ztc-updates-categories small { color: rgba(255,255,255,.62); font-size:12px; line-height: 1.45; }
.ztc-updates-categories > a:hover .ztc-item-arrow { opacity: 1; }
.ztc-updates-featured {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 13px 16px;
    color: #fff;
    border: 1px solid rgba(120,222,255,.24);
    border-radius: 10px;
    background: linear-gradient(110deg, rgba(0,142,211,.2), rgba(255,255,255,.035));
}
.ztc-updates-featured span { min-width: 0; }
.ztc-updates-featured small { color: var(--ztc-cyan); font-size:var(--ztc-fs-micro); letter-spacing: .12em; }
.ztc-updates-featured strong { margin: 2px 0; font-size: 14px; }
.ztc-updates-featured em { display: block; overflow: hidden; color: rgba(255,255,255,.62); font-size:12px; font-style: normal; text-overflow: ellipsis; white-space: nowrap; }
.ztc-updates-latest { padding-left: 24px; border-left: 1px solid rgba(255,255,255,.14); }
.ztc-updates-latest > p { margin-bottom: 9px; color: var(--ztc-cyan); font-size: 11px; font-weight: 700; letter-spacing: .12em; }
.ztc-updates-latest > a { display: block; padding: 12px 0; color: #fff; border-top: 1px solid rgba(255,255,255,.12); }
.ztc-updates-latest > a small,
.ztc-updates-latest > a strong,
.ztc-updates-latest > a span { display: block; }
.ztc-updates-latest > a small { margin-bottom: 6px; color: rgba(255,255,255,.52); font-size:var(--ztc-fs-micro); }
.ztc-updates-latest > a strong { display: -webkit-box; overflow: hidden; font-size: 13px; line-height: 1.55; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.ztc-updates-latest > a span { margin-top: 7px; color: var(--ztc-cyan); font-size:12px; }

/* ===== 面包屑（inc/breadcrumb.php 渲染）=====
   v1.1.0 位置=订阅带浅色区内、订阅行下方（Haning：深蓝页脚勿再切割，用订阅带配色）；
   分类逻辑层无独立页 → .ztc-crumb-plain 纯文本 */
.ztc-crumbar { padding: 22px 0 6px; }
.ztc-crumb ol { display: flex; flex-wrap: wrap; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; font-size: 13px; }
.ztc-crumb li { display: inline-flex; align-items: center; gap: 4px; }
/* 2026-09-02 Apple 式：分隔符由 '/' 改为小箭头（PHP 输出 chevron），首页为彩色云朵标志 */
.ztc-crumb-sep { display: inline-flex; color: rgba(45, 49, 66, .32); margin: 0 4px; }
.ztc-crumb-home { display: inline-flex; align-items: center; text-decoration: none; }
.ztc-crumb-home img { display: block; width: 18px; height: auto; transition: transform .2s; }
.ztc-crumb-home:hover img { transform: scale(1.12); }
.ztc-crumb a { color: var(--ztc-action); text-decoration: none; transition: color .2s; }
.ztc-crumb a:hover { color: var(--ztc-action-hover); text-decoration: underline; }
.ztc-crumb a.ztc-crumb-home:hover { text-decoration: none; }
.ztc-crumb-plain { color: #8A94A6; }
.ztc-crumb-current { color: var(--ztc-text); font-weight: 600; }

/* ===== 案例卡片（v0.9.0，inc/cases.php ztc_case_card 渲染；列表/首页精选/相关推荐共用）===== */
.ztc-case-card {
    display: flex; flex-direction: column; background: #fff; border: 1px solid #E6EDF4;
    border-radius: 16px; overflow: hidden; text-decoration: none; color: inherit;
    transition: transform .25s, box-shadow .25s, border-color .25s;
}
.ztc-case-card:hover { transform: translateY(-4px); border-color: rgba(0, 142, 211, .35);
    box-shadow: 0 16px 40px rgba(5, 45, 80, .12); }
.ztc-case-card-img { display: block; aspect-ratio: 16/10; overflow: hidden; background: #EFF4F9; }
.ztc-case-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.ztc-case-card:hover .ztc-case-card-img img { transform: scale(1.04); }
.ztc-case-card-body { display: flex; flex-direction: column; gap: 9px; padding: 20px 22px 22px; }
/* v1.0.0：企业名=卡标题（Haning：企业名最重要）；原标题副行；标签沉底 */
.ztc-case-card-company { font-size:20px; font-weight: 700; line-height: 1.35; color: var(--ztc-brand-navy);
    font-family: var(--ztc-font-serif, var(--ztc-serif)); }
.ztc-case-card-sub { font-size:14px; font-weight: 600; line-height: 1.5; color: #43536B;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.ztc-case-card-desc { font-size:14px; line-height: 1.7; color: #7A8698;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.ztc-case-card-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 6px; }
.ztc-case-card-tags em { font-style: normal; font-size: 12px; color: var(--ztc-action);
    background: rgba(0, 142, 211, .08); padding: 2px 10px; border-radius: 999px; }
/* 标签分主次（v1.4.0 案例呈现增强）：行业实底高亮=主浏览维度；业务浅底=次；产品描边灰=弱 */
.ztc-case-card-tags em.ztc-tag-industrys { background: var(--ztc-action); color: #fff; font-weight: 600; }
.ztc-case-card-tags em.ztc-tag-product { background: transparent; color: #8A94A6; box-shadow: inset 0 0 0 1px #D5DDE7; }

/* 客户 logo 墙（v1.4.0 首页信任带）：灰阶网格，hover 恢复彩色 */
.ztc-logo-wall { display: grid; grid-template-columns: repeat(auto-fill, minmax(128px, 1fr)); gap: 10px;
    margin: 34px 0 44px; }
.ztc-logo-cell { display: flex; align-items: center; justify-content: center; height: 64px;
    background: #fff; border: 1px solid #E9EEF4; border-radius: 10px; padding: 10px 14px; transition: all .25s; }
.ztc-logo-cell img { max-width: 100%; max-height: 34px; object-fit: contain;
    filter: grayscale(1); opacity: .62; transition: all .25s; }
.ztc-logo-cell:hover { border-color: rgba(0, 142, 211, .4); box-shadow: 0 4px 14px rgba(16, 42, 84, .08); }
.ztc-logo-cell:hover img { filter: none; opacity: 1; }
@media (max-width: 640px) { .ztc-logo-wall { grid-template-columns: repeat(3, 1fr); } }

/* 成功客户区（v1.4.4：一节融合——左文字 CTA / 右案例视频预览窗，底部画册入口条） */
.ztc-clients-main { display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: center; }
.ztc-clients-main .ztc-clients-cta { justify-content: flex-start; margin-top: 26px; }
.ztc-clients-video { display: flex; flex-direction: column; gap: 12px; }
.ztc-video-facade { position: relative; display: block; width: 100%; padding: 0; border: 0; border-radius: 14px;
    overflow: hidden; cursor: pointer; background: #0B3A66; box-shadow: 0 12px 34px rgba(16, 42, 84, .18); transition: transform .25s, box-shadow .25s; }
.ztc-video-facade:hover { transform: translateY(-3px); box-shadow: 0 18px 44px rgba(16, 42, 84, .26); }
.ztc-video-facade img { display: block; width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.ztc-video-facade::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(7,32,60,.05) 55%, rgba(7,32,60,.55)); }
/* v1.7.4（Haning）：播放钮从正中移到右下角——正中会挡住视频海报主体画面 */
.ztc-video-play { position: absolute; right: 18px; bottom: 14px; z-index: 2;
    display: flex; align-items: center; justify-content: center; width: 60px; height: 60px; border-radius: 50%;
    color: #fff; background: rgba(0, 142, 211, .92); box-shadow: 0 6px 22px rgba(0, 80, 140, .45); transition: transform .25s, background .25s; }
.ztc-video-facade:hover .ztc-video-play { transform: scale(1.07); background: var(--ztc-action); }
.ztc-video-cap { position: absolute; left: 18px; bottom: 14px; z-index: 2; color: #fff; font-size:14px; font-weight: 600; letter-spacing: .04em; }

/* 画册入口条（融入成功客户区底部，v1.4.4——画册不独立成章） */
.ztc-clients-brochure { display: flex; align-items: center; gap: 24px; margin-top: 46px; padding: 18px 26px;
    background: #fff; border: 1px solid #E3E9F0; border-radius: 14px; box-shadow: 0 6px 20px rgba(16, 42, 84, .06); }
.zcb-cover { width: 84px; flex: none; filter: drop-shadow(0 8px 14px rgba(16, 42, 84, .18)); }
.zcb-body { flex: 1; min-width: 0; }
.zcb-body strong { display: block; font-size: 16px; margin-bottom: 4px; font-family: var(--ztc-serif); }
.zcb-body span { font-size:14px; color: #5A6B84; line-height: 1.7; }
.zcb-qr { display: inline-flex; flex-direction: column; align-items: center; gap: 4px; flex: none; }
.zcb-qr img { width: 60px; height: 60px; border: 1px solid #E3E9F0; border-radius: 8px; padding: 4px; background: #fff; }
.zcb-qr em { font-style: normal; font-size: 12px; color: #8A94A6; }
.zcb-link { flex: none; display: inline-flex; align-items: center; gap: 5px; font-size: 14px; font-weight: 600;
    color: var(--ztc-action); text-decoration: none; white-space: nowrap; }
.zcb-link:hover { text-decoration: underline; }

/* 视频弹层（v1.4.1；防下载属性在 video 标签上） */
.ztc-video-modal {
    position: fixed; inset: 0; z-index: 2000; display: none; align-items: center; justify-content: center;
    padding: calc(var(--ztc-safe-top) + 52px) max(20px, var(--ztc-safe-right)) max(20px, var(--ztc-safe-bottom)) max(20px, var(--ztc-safe-left));
}
.ztc-video-modal.is-open { display: flex; }
.ztc-video-modal-backdrop { position: absolute; inset: 0; background: rgba(5, 14, 26, .82); backdrop-filter: blur(6px); }
.ztc-video-modal-box { position: relative; z-index: 2; width: min(1020px, 92vw, calc((100dvh - var(--ztc-safe-top) - var(--ztc-safe-bottom) - 88px) * 16 / 9)); }
.ztc-video-modal-box video { display: block; width: 100%; max-height: calc(100dvh - var(--ztc-safe-top) - var(--ztc-safe-bottom) - 88px); aspect-ratio: 16/9; object-fit: contain; background: #000; border-radius: 12px; }
.ztc-video-modal-close { position: absolute; top: -44px; right: 0; width: 40px; height: 40px; border: 1px solid rgba(255,255,255,.4);
    border-radius: 50%; background: transparent; color: #fff; font-size: 20px; line-height: 1; cursor: pointer; }
.ztc-video-modal-close:hover { background: rgba(255,255,255,.14); }

@media (max-width: 960px) {
    .ztc-clients-main { grid-template-columns: 1fr; gap: 32px; }
    .ztc-clients-brochure { flex-wrap: wrap; gap: 16px; }
}

/* 咨询面板富化（v0.5.0）：更宽面板 + 领域定位语 + 方案名称/一句话双行 */
.ztc-panel--consulting { width: min(1280px, 95vw); }
.ztc-con-slogan {
    column-span: all; font-size:16px; font-weight: 600; color: #fff;
    padding: 0 12px 13px; margin: 0 0 12px; border-bottom: 1px solid rgba(255,255,255,.14);
}
.ztc-con-slogan::before {
    content: ''; display: inline-block; width: 4px; height: 14px; margin-right: 9px;
    background: var(--ztc-cyan); border-radius: 2px; vertical-align: -2px;
}
/* 领域页建成补链后 slogan 可点（v0.7.0）：保持定位语观感，hover 亮青+箭头右移 */
.ztc-con-slogan a { color: inherit; text-decoration: none; display: inline-flex; align-items: center; gap: 7px; transition: color .2s; }
.ztc-con-slogan a .ztc-slogan-arrow { opacity: .55; transition: transform .2s, opacity .2s; }
.ztc-con-slogan a:hover { color: var(--ztc-cyan); }
.ztc-con-slogan a:hover .ztc-slogan-arrow { transform: translateX(3px); opacity: 1; }
.ztc-panel-content--rich { column-gap: 32px; }
.ztc-panel-content--rich a { align-items: flex-start; white-space: normal; padding: 9px 12px; }
.ztc-sub-body { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.ztc-sub-name { font-size: 14px; font-weight: 600; color: rgba(255,255,255,.92); }
.ztc-sub-desc {
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
    font-size:12px; line-height: 1.6; color: rgba(255,255,255,.6);
}
.ztc-panel-content--rich .ztc-item-arrow { margin-top: 4px; }

/* 产品面板：左概述 + 三级联动（概述文案逐字摘自现行官网产品页） */
.ztc-panel-pro { width: min(1340px, 96vw); }
.ztc-pro { display: grid; grid-template-columns: 232px 190px 126px 1fr; }
.ztc-pro > * { min-width: 0; }
.ztc-pro-intro { padding: 28px 22px 28px 30px; border-right: 1px solid rgba(255,255,255,.14); }
.ztc-pro-intro .ztc-panel-heading {
    margin-bottom: 12px; color: #fff; font-family: var(--ztc-serif);
    font-size:20px; font-weight: 600; line-height: 1.15;
}
.ztc-pro-intro .ztc-panel-heading::after {
    content: ''; display: block; width: 64px; height: 4px; margin-top: 12px;
    background-image: radial-gradient(circle at 2px 2px, var(--ztc-cyan) 2px, transparent 2.6px),
        linear-gradient(var(--ztc-cyan), var(--ztc-cyan));
    background-size: 10px 4px, 26px 2px; background-position: 0 0, 14px 1px; background-repeat: no-repeat;
}
.ztc-pro-slogan { font-size: 14px; font-weight: 600; color: var(--ztc-cyan); line-height: 1.65; margin-bottom: 12px; }
.ztc-pro-introdesc { font-size: 13px; color: rgba(255,255,255,.72); line-height: 1.8; margin-bottom: 18px; }
.ztc-pro-lines { display: flex; flex-direction: column; gap: 3px; padding: 24px 12px; border-right: 1px solid rgba(255,255,255,.14); }
.ztc-pro-line {
    display: flex; align-items: center; gap: 11px; padding: 11px 13px;
    background: none; border: 1px solid transparent; border-radius: 8px;
    color: rgba(255,255,255,.88); font-size:16px; font-family: var(--ztc-sans);
    cursor: pointer; text-align: left; transition: all .18s; white-space: nowrap;
}
.ztc-pro-ico { display: inline-flex; align-items: center; justify-content: center; width: 22px; color: #fff; flex: none; }
.ztc-pro-name { flex: 1; }
.ztc-pro-line:hover { background: rgba(255,255,255,.08); color: #fff; }
.ztc-pro-line.is-active { border-color: rgba(255,255,255,.25); background: rgba(255,255,255,.05); color: #fff; font-weight: 600; }
.ztc-pro-line.is-active .ztc-pro-ico { color: var(--ztc-cyan); }
.ztc-pro-line .ztc-tab-arrow { margin-left: auto; }
.ztc-pro-line:hover .ztc-tab-arrow, .ztc-pro-line.is-active .ztc-tab-arrow { opacity: 1; }
.ztc-pro-mid { border-right: 1px solid rgba(255,255,255,.14); padding: 24px 10px; }
.ztc-pro-subs { display: none; flex-direction: column; gap: 3px; }
.ztc-pro-subs.is-active { display: flex; }
.ztc-pro-sub {
    display: flex; align-items: center; justify-content: space-between; gap: 8px;
    padding: 9px 14px; background: none; border: none; border-radius: 999px;
    color: rgba(255,255,255,.8); font-size:14px; font-family: var(--ztc-sans);
    cursor: pointer; transition: all .18s; white-space: nowrap; text-align: left;
}
.ztc-pro-sub:hover { background: rgba(255,255,255,.08); color: #fff; }
.ztc-pro-sub.is-active { background: rgba(255,255,255,.14); color: #fff; font-weight: 600; }
.ztc-pro-right { padding: 24px 28px; }
.ztc-pro-cardset { display: none; }
.ztc-pro-cardset.is-active { display: block; }
.ztc-pro-catname {
    display: flex; align-items: center; gap: 6px; font-size: 14px; color: #fff;
    font-family: var(--ztc-sans); font-weight: 600;
    padding-bottom: 12px; margin-bottom: 12px; border-bottom: 1px solid rgba(255,255,255,.14);
}
.ztc-pro-catname svg { color: var(--ztc-cyan); }
.ztc-pro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 20px; }
.ztc-pro-card { display: flex; gap: 12px; padding: 10px 12px; border-radius: 8px; transition: background .18s; }
.ztc-pro-card:hover { background: rgba(255,255,255,.08); }
.ztc-pro-cardico { flex: none; width: 22px; padding-top: 2px; color: #fff; opacity: .9; }
.ztc-pro-cardbody strong { display: block; font-size:16px; font-weight: 600; color: #fff; margin-bottom: 4px; }
.ztc-pro-desc {
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
    font-size:12px; line-height: 1.65; color: rgba(255,255,255,.62);
}

.ztc-panel-simple { width: auto; min-width: 280px; left: auto; right: max(24px, calc((100vw - 1200px) / 2)); transform: translate(0, 10px); }
.ztc-nav-item:hover .ztc-panel-simple,
.ztc-nav-item.is-open .ztc-panel-simple { transform: translate(0, 0); }
.ztc-panel-simple ul { list-style: none; padding: 12px; }
.ztc-panel-simple a {
    display: flex; align-items: center; gap: 12px; padding: 11px 14px; font-size: 14px;
    border-radius: 8px; white-space: nowrap; color: rgba(255,255,255,.88);
}
.ztc-panel-simple a:hover { color: #fff; background: rgba(255,255,255,.1); }
.ztc-panel-simple a:hover .ztc-tab-arrow { opacity: 1; }

/* 右侧入口（v4：搜索带文字 + 描边 pill 联系我们 + 实心亮蓝 pill 预约演示，产品站同款） */
.ztc-header-right { display: flex; align-self: stretch; align-items: center; gap: 14px; flex: none; }
.ztc-dropdown { position: relative; display: flex; align-self: stretch; align-items: center; }
.ztc-dropdown-toggle { display: inline-flex; align-items: center; gap: 5px; background: none; border: none; font-size: 14px; cursor: pointer; padding: 8px 0; font-family: var(--ztc-sans); color: inherit; }
.ztc-dropdown-panel {
    position: absolute; right: 0; top: 100%; min-width: 172px; list-style: none;
    background: rgba(0,70,126,.97); color: #fff; border-radius: 12px; border: 1px solid rgba(255,255,255,.28);
    -webkit-backdrop-filter: blur(24px); backdrop-filter: blur(24px);
    box-shadow: 0 24px 64px rgba(4,24,44,.35); opacity: 0; visibility: hidden; transition: all .2s; padding: 6px;
    transform: translateY(6px);
}
.ztc-dropdown:hover .ztc-dropdown-panel,
.ztc-dropdown.is-open .ztc-dropdown-panel { opacity: 1; visibility: visible; transform: none; }
.ztc-dropdown-panel a { display: block; padding: 9px 14px; font-size: 14px; border-radius: 6px; color: rgba(255,255,255,.88); transition: background .18s, color .18s; }
.ztc-dropdown-panel a:hover { color: #fff; background: rgba(255,255,255,.12); }
.ztc-icon-link { display: flex; align-items: center; }
.ztc-search-link { gap: 7px; font-size: 14px; }
/* 描边 pill（联系我们）：overlay 白描边 / 实色深蓝描边 */
.ztc-btn-nav-ghost {
    display: inline-block; padding: 8px 22px; border-radius: 999px; font-size: 14px;
    border: 1px solid rgba(255,255,255,.55); color: #fff; transition: all .25s;
}
.ztc-btn-nav-ghost:hover { border-color: #fff; background: rgba(255,255,255,.12); color: #fff; }
.ztc-header--overlay.is-solid .ztc-btn-nav-ghost,
.ztc-header--solid .ztc-btn-nav-ghost { border-color: var(--ztc-action); color: var(--ztc-action); }
.ztc-header--overlay.is-solid .ztc-btn-nav-ghost:hover,
.ztc-header--solid .ztc-btn-nav-ghost:hover { background: var(--ztc-action); border-color: var(--ztc-action); color: #fff; }
/* 实心 pill（预约演示）：小号白字使用行动深蓝，主蓝留给品牌识别与装饰。 */
.ztc-btn-nav { padding: 9px 26px; background: var(--ztc-action); color: var(--ztc-action-ink); font-size: 14px; }
.ztc-btn-nav:hover { background: var(--ztc-action-hover); }

/* 移动端抽屉 */
.ztc-hamburger {
    display: none;
    min-width: 44px;
    min-height: 44px;
    padding: 8px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    color: var(--ztc-text);
    background: none;
    border: none;
    cursor: pointer;
}
.ztc-hamburger svg { width: 24px; height: 24px; display: block; } /* 2026-09-02 三道杠 span → morphicons 形变图标 */
.ztc-drawer {
    position: fixed; inset: 0; z-index: 200;
    padding: max(20px, env(safe-area-inset-top)) max(20px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left));
    background: #fff; overflow-y: auto; overscroll-behavior: contain;
    opacity: 0; pointer-events: none; transform: translate3d(100%, 0, 0);
    transition: transform .36s cubic-bezier(.22, 1, .36, 1), opacity .24s ease;
    will-change: transform, opacity;
}
.ztc-drawer[hidden] { display: none; }
.ztc-drawer.is-open { opacity: 1; pointer-events: auto; transform: translate3d(0, 0, 0); }
.ztc-drawer-head { position: sticky; top: 0; z-index: 1; display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; background: #fff; box-shadow: 0 -24px 0 #fff; }
.ztc-drawer-brand { min-height: 44px; display: inline-flex; align-items: center; padding: 6px 0; }
.ztc-drawer-brand img { width: auto; height: 36px; }
.ztc-drawer-close { display: grid; place-items: center; min-width: 44px; min-height: 44px; background: none; border: none; font-size:30px; cursor: pointer; }
.ztc-drawer-group { border-bottom: 1px solid var(--ztc-border); }
.ztc-drawer-direct { display: block; padding: 16px 0; border-bottom: 1px solid var(--ztc-border); font-weight: 600; }
.ztc-drawer-direct.is-current, .ztc-drawer-group.is-current > summary { color: var(--ztc-action); }
.ztc-drawer-group summary { padding: 16px 0; font-weight: 600; cursor: pointer; list-style: none; }
.ztc-drawer-group summary::-webkit-details-marker { display: none; }
.ztc-drawer-group summary::after { content: '+'; float: right; color: var(--ztc-brand); }
.ztc-drawer-group[open] summary::after { content: '−'; }
.ztc-drawer-group a { display: block; padding: 10px 0 10px 16px; color: var(--ztc-text-muted); font-size:16px; }
.ztc-drawer-group a[aria-current="page"] { color: var(--ztc-action); font-weight: 600; background: var(--ztc-tint-info-bg); border-radius: 6px; }
.ztc-drawer-foot { display: grid; gap: 12px; margin-top: 32px; padding-bottom: 8px; text-align: center; }
.ztc-drawer-tools { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.ztc-drawer-tool {
    min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    border: 1px solid var(--ztc-border); border-radius: 999px; color: var(--ztc-action); font-size: 14px; font-weight: 600;
}
.ztc-drawer-tool:hover { border-color: var(--ztc-action); background: var(--ztc-tint-info-bg); }
.ztc-drawer-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.ztc-drawer-actions a { min-width: 0; min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: 7px; padding: 10px 14px; border-radius: 999px; font-size: 15px; }

/* 各标准详情页沿用独立锚点条命名；交互状态统一使用可读的行动深蓝。 */
#ztc-main :is(nav[class$="-anchorbar"], .ph-local-nav) { top: var(--ztc-shell-sticky-top); }
#ztc-main :is(nav[class$="-anchorbar"], .ph-local-nav) a {
    display: inline-flex; align-items: center; justify-content: center; min-height: 44px;
}
#ztc-main nav[class$="-anchorbar"] ol { scrollbar-width: none; overscroll-behavior-x: contain; }
#ztc-main nav[class$="-anchorbar"] ol::-webkit-scrollbar { display: none; }
nav[class$="-anchorbar"] a.is-active {
    color: #fff;
    background: var(--ztc-action) !important;
}

/* ---------- Hero：电影感权威场——2026-09-02 删除：全站零 PHP 引用（ztc-hero 类无任何模板使用），由 banner 三档体系接管 ---------- */

/* ---------- 简介 ---------- */
.ztc-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.ztc-intro-text h2 { font-size: 34px; margin-bottom: 22px; }
.ztc-intro-text p { color: var(--ztc-text-muted); font-size:16px; line-height: 1.9; margin-bottom: 16px; }
.ztc-intro-text .ztc-text-link { display: inline-block; margin-top: 8px; }
.ztc-intro-media img { border-radius: 8px; box-shadow: var(--ztc-shadow-hover); }
.ztc-intro-media video { display: block; width: 100%; aspect-ratio: 16/9; background: #07203C; border-radius: 8px; box-shadow: var(--ztc-shadow-hover); }

/* ---------- 数据带 ---------- */
.ztc-stats { border-top: 1px solid var(--ztc-border); border-bottom: 1px solid var(--ztc-border); }
.ztc-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.ztc-stat { padding: 52px 24px; text-align: center; position: relative; }
.ztc-stat + .ztc-stat::before { content: ''; position: absolute; left: 0; top: 32%; height: 36%; width: 1px; background: var(--ztc-border); }
.ztc-stat strong { display: block; font-family: var(--ztc-serif); font-size: 52px; color: var(--ztc-navy); line-height: 1; margin-bottom: 12px; font-weight: 700; }
.ztc-stat span { font-size: 14px; color: var(--ztc-text-muted); }

/* ---------- 区块通用 ---------- */
.ztc-section { padding: 96px 0; }
.ztc-section-subtle { background: var(--ztc-bg); }
.ztc-section-head { margin-bottom: 52px; max-width: 660px; }
.ztc-section-head h2 { font-size: 34px; }
.ztc-section-head > p:not(.ztc-eyebrow), .ztc-section-head div > p:not(.ztc-eyebrow) { color: var(--ztc-text-muted); font-size:16px; margin-top: 0; } /* v1.6.3：间距统一由 DNA 线 margin 承载 */
.ztc-section-head-row { display: flex; justify-content: space-between; align-items: flex-end; max-width: none; }

/* 咨询九宫（v1.1.0：图标+编号+定位语，数据=nav-data） */
.ztc-consult-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.ztc-consult-card {
    position: relative; padding: 30px 28px 44px; background: #fff;
    border: 1px solid var(--ztc-border); border-radius: 16px; transition: all .28s ease; overflow: hidden;
}
.ztc-consult-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.ztc-consult-ico { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 10px; background: rgba(0,142,211,.08); color: var(--ztc-brand); transition: all .28s; }
.ztc-consult-no { font-family: var(--ztc-serif); font-size:16px; color: var(--ztc-brand); letter-spacing: .1em; }
.ztc-consult-card h3 { font-size: 20px; transition: color .28s; margin-bottom: 10px; }
.ztc-consult-card p { font-size:14px; line-height: 1.75; color: var(--ztc-text-muted); transition: color .28s; }
.ztc-card-arrow { position: absolute; right: 26px; bottom: 22px; color: var(--ztc-brand); opacity: 0; transform: translateX(-6px); transition: all .28s; }
/* v1.2.0：hover 不再整卡反深海军蓝（Haning：特别深的蓝色块显怪）——改浅蓝晕+标题行动色，克制 */
.ztc-consult-card:hover { background: linear-gradient(135deg, rgba(0,142,211,.05), rgba(97,204,240,.10)); border-color: rgba(0,142,211,.35); transform: translateY(-4px); box-shadow: var(--ztc-shadow-hover); }
.ztc-consult-card:hover h3, .ztc-consult-card:hover .ztc-consult-no { color: var(--ztc-action); }
.ztc-consult-card:hover .ztc-consult-ico { background: var(--ztc-action); color: #fff; }
.ztc-consult-card:hover .ztc-card-arrow { opacity: 1; transform: none; }

/* 资讯图片卡片 */
.ztc-news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.ztc-news-card { background: #fff; border-radius: 16px; overflow: hidden; border: 1px solid var(--ztc-border); transition: all .28s; }
.ztc-news-card:hover { transform: translateY(-4px); box-shadow: var(--ztc-shadow-hover); }
.ztc-news-cover { aspect-ratio: 16/9; overflow: hidden; }
.ztc-news-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.ztc-news-card:hover .ztc-news-cover img { transform: scale(1.05); }
.ztc-news-body { padding: 22px 24px 26px; }
.ztc-news-body time { font-family: var(--ztc-serif); color: var(--ztc-brand); font-size: 13px; letter-spacing: .05em; }
.ztc-news-body h3 { font-size:16px; font-family: var(--ztc-sans); font-weight: 600; margin-top: 8px; line-height: 1.55; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* 知识卡片 */
.ztc-knowledge-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.ztc-knowledge-card {
    padding: 34px 30px; background: #fff; border: 1px solid var(--ztc-border);
    border-radius: 16px; transition: all .28s; display: flex; flex-direction: column;
}
.ztc-knowledge-card:hover { box-shadow: var(--ztc-shadow-hover); transform: translateY(-4px); border-color: transparent; }
.ztc-knowledge-card h3 { font-size:20px; margin-bottom: 14px; line-height: 1.5; }
.ztc-knowledge-card p { font-size: 14px; color: var(--ztc-text-muted); line-height: 1.8; margin-bottom: 22px; flex: 1; }

/* 成功客户（v1.2.0：深海军蓝整块 → 浅纸色——深蓝只留给 hero/CTA 收束带/页脚，内容区白/浅交替） */
.ztc-clients { background: #F7FAFD; color: var(--ztc-text); }
.ztc-clients h2 { font-size: 34px; margin-bottom: 26px; color: var(--ztc-text); }
.ztc-clients-desc { max-width: 880px; font-size:16px; line-height: 2.1; color: var(--ztc-text-muted); margin-bottom: 40px; }
.ztc-clients-cta { display: flex; gap: 16px; }

/* CTA（v1.1.0：白底偏素 → 深蓝渐变带，与 hero 同基底 token，收束首页视觉） */
.ztc-cta { background: var(--ztc-banner-authority); color: #fff; }
.ztc-cta-inner { text-align: center; max-width: 720px; }
.ztc-cta .ztc-eyebrow { display: inline-block; color: var(--ztc-hero-eyebrow); }
.ztc-cta h2 { font-size: 32px; margin-bottom: 14px; color: #fff; }
.ztc-cta p { color: rgba(255,255,255,.82); margin-bottom: 36px; }
.ztc-cta .ztc-btn-primary-pill { background: #fff; color: var(--ztc-brand); }
.ztc-cta .ztc-btn-primary-pill:hover { background: var(--ztc-cyan); color: var(--ztc-navy-deep); }

/* ---------- 页脚 v3：产品站风格（亮蓝 + 粒子点阵 + 社交圈悬停二维码） ---------- */
.ztc-footer {
    position: relative; background: var(--ztc-brand-navy); color: #fff;
    font-size: 14px; overflow: hidden;
}
.ztc-footer-dots { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.ztc-footer .ztc-container { position: relative; z-index: 1; }

/* 上区：logo + 社交矩阵同行 | 右侧口号 + 大电话（产品站版式） */
.ztc-footer-top { padding: 44px 0 32px; }
.ztc-footer-toprow { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 24px; }
.ztc-footer-brandbox { display: flex; align-items: center; gap: 34px; flex-wrap: wrap; }
.ztc-footer-logo img { height: 44px; }
.ztc-footer-contact { text-align: right; }
.ztc-footer-slogan { font-size: 13px; opacity: .72; letter-spacing: .14em; margin-bottom: 8px; }
.ztc-footer-phone {
    font-family: var(--ztc-serif); font-size: 30px; font-weight: 700; letter-spacing: .04em;
    color: #fff; line-height: 1.15;
}
.ztc-footer-phone:hover { color: var(--ztc-cyan); }
/* v0.5.1：联系区双通道——400 电话 + 商务邮箱（地址取自产品站页脚真实在用的 CEO 邮箱） */
.ztc-footer-mail {
    display: flex; align-items: center; justify-content: flex-end; gap: 7px;
    font-size:14px; color: rgba(243,247,254,.72); margin-top: 10px; transition: color .2s;
}
.ztc-footer-mail:hover { color: #fff; }
.ztc-footer-mail svg { color: var(--ztc-cyan); flex: none; }
.ztc-footer-social { display: flex; align-items: center; gap: 12px; }
.ztc-social-item {
    position: relative; display: flex; align-items: center; justify-content: center;
    width: 44px; height: 44px; border-radius: 50%;
    border: 1px solid rgba(255,255,255,.16);
    color: inherit; background: transparent; cursor: pointer; font: inherit;
    transition: all .3s;
}
.ztc-social-item > img { width: 20px; height: 20px; object-fit: contain; filter: brightness(0) invert(1); opacity: .5; transition: opacity .3s; }
/* hover 点亮：品牌亮蓝实心（产品站同款 #0086d1→本站 token #008ED3）+ 白图标全亮 */
.ztc-social-item:hover,
.ztc-social-item:focus-visible { background: var(--ztc-brand-primary); border-color: var(--ztc-brand-primary); }
.ztc-social-item:hover > img,
.ztc-social-item:focus-visible > img { opacity: 1; }
/* 悬停弹出二维码（产品站同款） */
/* v0.5.2：二维码弹层改向下展开——footer overflow:hidden 会裁掉向上弹出的部分 */
.ztc-social-qr {
    position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%) scale(.9); transform-origin: top center;
    width: 108px; padding: 8px; background: #fff; border-radius: 8px;
    box-shadow: 0 8px 28px rgba(6,24,44,.28);
    opacity: 0; visibility: hidden; transition: all .25s; z-index: 5;
}
.ztc-social-qr::after {
    content: ''; position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%);
    border: 6px solid transparent; border-bottom-color: #fff;
}
.ztc-social-qr img { width: 100%; border-radius: 4px; }
.ztc-social-item:hover .ztc-social-qr,
.ztc-social-item:focus .ztc-social-qr,
.ztc-social-item:focus-visible .ztc-social-qr { opacity: 1; visibility: visible; transform: translateX(-50%) scale(1); }

/* 口号 + 大电话（v4：并入上区右侧，独立 tagline 块已移除） */

/* 中区：五个一级入口。咨询自动双栏；洞察与资源使用显式双列，避免内容增删造成自动分栏漂移。 */
.ztc-footer-mid { border-top: 1px solid rgba(255,255,255,.12); padding: 38px 0 14px; }
.ztc-footer-cols { display: grid; grid-template-columns: 1.18fr .88fr .72fr 1.38fr 1.34fr; gap: 26px; }
.ztc-footer-col h2 { margin-bottom: 16px; }
.ztc-footer-linkgroups { display: block; }
.ztc-footer-col--wide ul { columns: 2; column-gap: 24px; }
.ztc-footer-col--wide li { break-inside: avoid; }
.ztc-footer-col--split .ztc-footer-linkgroups { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 18px; }
/* 列标题=链接+箭头（产品站同款：标题可点，hover 下划线生长由 .ztc-footer-col a::after 统一承担） */
.ztc-footer-col h2 a {
    position: relative; display: inline-flex; align-items: center; gap: 8px;
    color: #fff; font-family: var(--ztc-sans); font-size: 18px; font-weight: 600; letter-spacing: .02em;
}
.ztc-footer-col h2 a svg { opacity: .75; }
.ztc-footer-col ul { list-style: none; }
.ztc-footer-col a {
    position: relative; display: inline-block; padding: 5px 0;
    color: rgba(243,247,254,.55); font-size:14px; transition: color .25s;
}
.ztc-footer-col a::after {
    content: ''; position: absolute; bottom: 2px; left: 0; width: 0;
    border-top: 1px solid #fff; transition: width .3s;
}
.ztc-footer-col a:hover { color: #fff; }
.ztc-footer-col a:hover::after { width: 100%; }
.ztc-footer-brandrow {
    display: flex; align-items: center; gap: 22px; flex-wrap: wrap;
    margin-top: 24px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.12);
    font-size: 13px; color: rgba(255,255,255,.6);
}
.ztc-footer-brandrow a { color: rgba(255,255,255,.72); }
.ztc-footer-brandrow a:hover { color: #fff; }

/* 底区：版权 + 备案 */
.ztc-footer-bottom { border-top: 1px solid rgba(255,255,255,.12); }
.ztc-footer-bottomrow {
    display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px;
    /* 给右下固定回顶按钮保留独立 lane，任何宽度均不遮挡版权/政策链接。 */
    padding: 18px max(88px, calc(24px + var(--ztc-safe-right))) 18px 24px; font-size:12px; color: rgba(255,255,255,.6);
}
.ztc-footer-legal, .ztc-footer-policy { display: flex; min-width: 0; gap: 20px; flex-wrap: wrap; align-items: center; }
.ztc-footer-legal { flex: 1 1 500px; }
.ztc-footer-policy { flex: 0 1 auto; justify-content: flex-end; }
.ztc-footer-legal a { display: inline-flex; align-items: center; white-space: nowrap; }
.ztc-footer-bottom a:hover { color: #fff; }

/* ---------- 轻量咨询分流（无 PII） ---------- */
.ztc-consult-tab {
    position: fixed; right: var(--ztc-safe-right); top: 52%; z-index: 890;
    min-width: 44px; min-height: 92px; display: flex; align-items: center; justify-content: center; padding: 14px 11px;
    border: 0; border-radius: 16px 0 0 16px;
    color: #fff; background: var(--ztc-action); box-shadow: 0 12px 30px rgba(0, 58, 112, .2);
    writing-mode: vertical-rl; letter-spacing: .12em; font: 700 13px/1 var(--ztc-sans);
    cursor: pointer; text-decoration: none; transition: transform .22s ease, background-color .22s ease;
}
.ztc-consult-tab:hover { transform: translateX(-4px); background: var(--ztc-brand-primary); }
.ztc-consult-tab:focus-visible,
.ztc-consult-close:focus-visible,
.ztc-consult-routes a:focus-visible,
.ztc-consult-direct a:focus-visible { outline: 3px solid var(--ztc-brand-amber); outline-offset: 3px; }
.ztc-consult-drawer { position: fixed; inset: 0; z-index: 1200; display: grid; grid-template-columns: minmax(0, 1fr) minmax(420px, 560px); }
.ztc-consult-drawer[hidden] { display: none; }
.ztc-consult-backdrop { grid-column: 1; grid-row: 1; background: rgba(3, 23, 44, .58); backdrop-filter: blur(8px); }
.ztc-consult-panel {
    position: relative; grid-column: 2; grid-row: 1; min-width: 0; height: 100%; overflow-y: auto;
    padding: calc(66px + var(--ztc-safe-top)) calc(44px + var(--ztc-safe-right)) calc(42px + var(--ztc-safe-bottom)) calc(44px + var(--ztc-safe-left)); color: var(--ztc-text); background: #F5F9FC;
    box-shadow: -24px 0 70px rgba(4, 35, 65, .2); transform: translateX(24px); opacity: 0;
    transition: transform .28s ease, opacity .24s ease;
}
.ztc-consult-drawer.is-open .ztc-consult-panel { transform: translateX(0); opacity: 1; }
.ztc-consult-close {
    position: absolute; top: calc(20px + var(--ztc-safe-top)); right: calc(22px + var(--ztc-safe-right)); width: 42px; height: 42px;
    border: 1px solid var(--ztc-border); border-radius: 50%; color: var(--ztc-text); background: #fff;
    font: 400 28px/1 var(--ztc-sans); cursor: pointer;
}
.ztc-consult-head { padding: 0 0 28px; border-bottom: 1px solid var(--ztc-border); }
.ztc-consult-head p { margin: 0 0 12px; color: var(--ztc-action); font-size: 11px; font-weight: 700; letter-spacing: .18em; }
.ztc-consult-head h2 { margin: 0; font-family: var(--ztc-serif); font-size: clamp(30px, 3vw, 40px); line-height: 1.25; }
.ztc-consult-head > span { display: block; margin-top: 18px; color: var(--ztc-text-muted); font-size: 14px; line-height: 1.75; }
.ztc-consult-routes { display: grid; gap: 10px; padding: 22px 0; }
.ztc-consult-routes a { display: block; padding: 18px 20px; border: 1px solid var(--ztc-border); border-radius: 14px; color: var(--ztc-text); background: #fff; transition: border-color .2s ease, transform .2s ease; }
.ztc-consult-routes a:hover,
.ztc-consult-routes a.is-prioritized { border-color: rgba(0, 142, 211, .58); transform: translateX(-3px); }
.ztc-consult-routes small { display: block; margin-bottom: 7px; color: var(--ztc-action); font-size:var(--ztc-fs-micro); font-weight: 700; letter-spacing: .08em; }
.ztc-consult-routes strong { display: block; font-size:16px; }
.ztc-consult-routes span { display: block; margin-top: 7px; color: var(--ztc-text-muted); font-size:12px; line-height: 1.65; }
.ztc-consult-direct { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding-top: 22px; border-top: 1px solid var(--ztc-border); }
.ztc-consult-direct a { min-width: 0; padding: 16px 18px; border-radius: 12px; color: #fff; background: var(--ztc-banner-authority); }
.ztc-consult-direct small { display: block; margin-bottom: 6px; color: rgba(255, 255, 255, .72); font-size:var(--ztc-fs-micro); }
.ztc-consult-direct strong { display: block; font-size: 14px; overflow-wrap: anywhere; }

/* ---------- 兜底页 ---------- */
.ztc-page-body { padding: 72px 24px; max-width: 860px; margin: 0 auto; }
.ztc-page-title { font-size: 34px; margin-bottom: 32px; }
.ztc-page-content { line-height: 1.9; }
.ztc-page-content p { margin-bottom: 1.2em; }

/* ---------- 进场动效（克制） ---------- */
@keyframes ztc-fade-up { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: none; } }
.ztc-hero-content > * { animation: ztc-fade-up .9s ease both; }
.ztc-hero-sub { animation-delay: .15s; }
.ztc-hero-cta { animation-delay: .3s; }
.ztc-reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.ztc-reveal.is-inview { opacity: 1; transform: none; }
/* B 批次（2026-09-02）：全站唯一防折行工具类，替代各族私版（*-nowrap 6 套已退场） */
.ztc-nowrap { white-space: nowrap; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto !important; }
    * { animation: none !important; transition: none !important; }
    .ztc-reveal { opacity: 1; transform: none; }
    .ztc-reveal .ztc-bar-title::before, .ztc-reveal.ztc-bar-title::before { transform: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1280px) {
    .ztc-panel-inner { grid-template-columns: 220px 210px 1fr; gap: 28px; padding: 32px; }
    .ztc-pro { grid-template-columns: 200px 190px 112px minmax(0, 1fr); }
}
/* 中等宽度下完整桌面导航会压缩到单字换行；提前切换为紧凑页头。 */
@media (max-width: 1100px) {
    :root { --ztc-shell-header-size: 56px; --ztc-shell-sticky-gap: 10px; }
    .ztc-topbar, .ztc-nav, .ztc-dropdown, .ztc-header-right .ztc-icon-link, .ztc-btn-nav-ghost, .ztc-btn-nav { display: none; }
    .ztc-hamburger { display: flex; }
    .ztc-header--overlay:not(.is-solid) .ztc-hamburger { color: #fff; }
    .ztc-header--overlay { color: #fff; top: var(--ztc-shell-header-inset-top); }
    .ztc-header-inner { width: calc(100% - 24px); justify-content: space-between; height: 56px; border-radius: 28px; padding: 0 10px 0 18px; }
    .ztc-header--overlay .ztc-header-inner { background: rgba(10,30,50,.45); border-color: rgba(255,255,255,.2); }
    .ztc-consult-tab { display: none; }
}
@media (max-width: 991px) {
    .ztc-intro { grid-template-columns: 1fr; gap: 40px; }
    .ztc-stats-grid { grid-template-columns: 1fr 1fr; }
    .ztc-stat + .ztc-stat::before { display: none; }
    .ztc-consult-grid, .ztc-knowledge-grid, .ztc-news-grid { grid-template-columns: 1fr; }
    .ztc-footer-toprow { flex-direction: column; align-items: flex-start; }
    .ztc-footer-brandbox { flex-direction: column; align-items: flex-start; gap: 22px; }
    .ztc-footer-contact { text-align: left; }
    .ztc-footer-mail { justify-content: flex-start; }
    .ztc-footer-social { flex-wrap: wrap; }
    .ztc-footer-cols { grid-template-columns: 1fr 1fr; gap: 28px; }
    .ztc-footer-col--wide ul { columns: 1; }
    .ztc-footer-col--split .ztc-footer-linkgroups { grid-template-columns: 1fr; gap: 0; }
    .ztc-footer-col a { min-height: 44px; display: inline-flex; align-items: center; padding: 8px 0; }
    .ztc-footer-phone { font-size:30px; }
    .ztc-footer-dots { display: none; }
    .ztc-section { padding: 60px 0; }
    .ztc-panel { display: none; }
    .ztc-hero { min-height: 78vh; }
    .ztc-totop-float { width: 44px; height: 44px; right: var(--ztc-shell-float-right); bottom: var(--ztc-shell-float-bottom); }
    .ztc-consult-drawer { grid-template-columns: 1fr; }
    .ztc-consult-backdrop { grid-column: 1; }
    .ztc-consult-panel { grid-column: 1; width: min(100%, 560px); margin-left: auto; padding: calc(64px + var(--ztc-safe-top)) calc(24px + var(--ztc-safe-right)) calc(34px + var(--ztc-safe-bottom)) calc(24px + var(--ztc-safe-left)); }
    .ztc-consult-direct { grid-template-columns: 1fr; }
}

@media (max-width: 767px) {
    .ztc-footer-top { padding-bottom: 26px; }
    .ztc-footer-mid { padding: 12px 0 0; }
    .ztc-footer-cols { grid-template-columns: 1fr; gap: 0; }
    .ztc-footer-col h2 { margin: 0; }
    .ztc-footer-col h2 a {
        width: 100%; min-height: 52px; justify-content: space-between; padding: 0;
        border-bottom: 1px solid rgba(255,255,255,.12); font-size:16px;
    }
    .ztc-footer-col h2 a::after { display: none; }
    .ztc-footer-col h2 a svg { flex: none; }
    .ztc-footer-linkgroups { display: none !important; }
    .ztc-footer-brandrow { display: none; }
    .ztc-footer-social { padding-inline: 8px; }
    .ztc-footer-bottomrow { flex-direction: column; align-items: flex-start; padding-top: 16px; padding-bottom: max(18px, var(--ztc-safe-bottom)); }
    .ztc-footer-legal, .ztc-footer-policy { flex: 1 1 auto; width: 100%; max-width: 100%; gap: 10px 18px; justify-content: flex-start; }
}

/* ==========================================================================
   v0.4 新增模块：产品 Tab 卡 / 案例卡 / FAQ / 订阅带 / 回顶部
   ========================================================================== */

/* ---------- 系统产品 Tab 卡 ---------- */
.ztc-products-tabs { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 34px; }
.ztc-products-tab { display: inline-flex; align-items: center; gap: 10px; padding: 10px 18px 10px 10px; border: 1px solid var(--ztc-border); border-radius: 999px; background: #fff; color: var(--ztc-text); font-size:16px; font-family: var(--ztc-sans); cursor: pointer; transition: border-color .2s, color .2s; }
.ztc-products-tab .ztc-tab-ico { width: 32px; height: 32px; border-radius: 50%; background: var(--ztc-tint-info-bg); color: var(--ztc-action); display: inline-flex; align-items: center; justify-content: center; transition: background .2s, color .2s; }
.ztc-products-tab:hover { border-color: var(--ztc-action); color: var(--ztc-action); }
.ztc-products-tab.is-active { border-color: var(--ztc-action); color: var(--ztc-action); }
.ztc-products-tab.is-active .ztc-tab-ico { background: var(--ztc-action); color: #fff; }
.ztc-products-panel { display: none; grid-template-columns: 5fr 7fr; gap: 48px; background: #fff; border: 1px solid var(--ztc-border); border-radius: 12px; padding: 44px 48px; }
.ztc-products-panel.is-active { display: grid; }
.ztc-products-info h3 { font-size:var(--ztc-fs-h2); margin-bottom: 14px; }
.ztc-products-info p { color: var(--ztc-text-muted); font-size:16px; line-height: 1.9; margin-bottom: 22px; }
.ztc-products-chips { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; align-content: start; }
.ztc-products-chips a { display: flex; align-items: center; justify-content: space-between; padding: 13px 18px; border: 1px solid var(--ztc-border); border-radius: 8px; font-size:14px; transition: border-color .2s, color .2s, transform .2s; }
.ztc-products-chips a::after { content: '→'; color: var(--ztc-accent-bar); }
.ztc-products-chips a:hover { border-color: var(--ztc-action); color: var(--ztc-action); transform: translateY(-1px); }

/* ---------- 精选案例（首页深蓝区） ----------
   v1.1.0：卡片改用统一 .ztc-case-card 白卡组件（定义见上方卡片组件区），
   旧深玻璃样式删除——与组件同名叠加曾导致白底白字隐形（v0.9.0 回归，v1.1.0 修复） */
.ztc-case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-bottom: 44px; }

/* ---------- FAQ 手风琴 ---------- */
.ztc-faq-inner { max-width: 880px; }
.ztc-faq-list { border-top: 1px solid var(--ztc-border); }
.ztc-faq-item { border-bottom: 1px solid var(--ztc-border); }
.ztc-faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 22px 4px; font-size:18px; font-weight: 600; font-family: var(--ztc-serif); cursor: pointer; list-style: none; transition: color .2s; }
.ztc-faq-item summary::-webkit-details-marker { display: none; }
.ztc-faq-item summary::after { content: '+'; flex: none; width: 30px; height: 30px; border: 1px solid var(--ztc-border); border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 400; color: var(--ztc-action); transition: transform .25s, background .2s, color .2s; }
.ztc-faq-item summary:hover { color: var(--ztc-action); }
.ztc-faq-item[open] summary { color: var(--ztc-action); }
.ztc-faq-item[open] summary::after { content: '−'; background: var(--ztc-action); border-color: var(--ztc-action); color: #fff; }
.ztc-faq-a { padding: 0 44px 24px 4px; }
.ztc-faq-a p { color: var(--ztc-text-muted); font-size:16px; line-height: 1.95; }

/* ---------- 订阅带（页脚前浅色区） ---------- */
.ztc-subscribe { background: var(--ztc-bg); border-top: 1px solid var(--ztc-border); padding: 44px 0; }
.ztc-subscribe-inner { display: flex; align-items: center; justify-content: space-between; gap: 36px; }
.ztc-subscribe-text h2 { font-size: 24px; margin-bottom: 6px; }
.ztc-subscribe-text p { color: var(--ztc-text-muted); font-size:14px; }
.ztc-subscribe-form { display: flex; gap: 12px; flex: none; }
.ztc-subscribe-form input { width: 300px; padding: 13px 18px; border: 1px solid var(--ztc-border); border-radius: 999px; font-size:16px; font-family: var(--ztc-sans); background: #fff; outline: none; transition: border-color .2s; }
.ztc-subscribe-form input:focus { border-color: var(--ztc-action); box-shadow: 0 0 0 3px rgba(0,103,180,.14); }
.ztc-subscribe-form .ztc-btn-primary-pill { padding: 13px 34px; border: none; cursor: pointer; font-family: var(--ztc-sans); }
.ztc-sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* ---------- 回顶部浮动圆钮（产品站同款：右下固定白圆，hover 深蓝反白） ---------- */
.ztc-totop-float {
    position: fixed; right: max(26px, var(--ztc-safe-right)); bottom: max(26px, var(--ztc-safe-bottom)); z-index: 90;
    width: 46px; height: 46px; border-radius: 50%; border: none; cursor: pointer;
    background: #fff; color: var(--ztc-action); box-shadow: 0 6px 20px rgba(10,43,76,.18);
    display: flex; align-items: center; justify-content: center;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(10px);
    transition: opacity .25s, visibility .25s, background .25s, color .25s, transform .25s;
}
.ztc-totop-float.is-visible { opacity: 1; visibility: visible; pointer-events: auto; transform: none; }
.ztc-totop-float:hover { background: var(--ztc-action); color: #fff; transform: translateY(-2px); }
.ztc-totop-ico { transform: rotate(180deg); }

@media (max-width: 991px) {
    .ztc-totop-float {
        width: 44px;
        height: 44px;
        right: var(--ztc-shell-float-right);
        bottom: var(--ztc-shell-float-bottom);
    }
}

/* ---------- v0.4 响应式补充 ---------- */
@media (max-width: 991px) {
    .ztc-products-panel { grid-template-columns: 1fr; gap: 26px; padding: 28px 22px; }
    .ztc-products-chips { grid-template-columns: 1fr; }
    .ztc-case-grid { grid-template-columns: 1fr; }
    .ztc-clients-cta { flex-wrap: wrap; gap: 12px; }
    .ztc-clients-cta a { flex: 1 1 auto; text-align: center; white-space: nowrap; padding: 12px 10px; font-size:14px; }
    .ztc-subscribe-inner { flex-direction: column; align-items: flex-start; }
    .ztc-subscribe-form { width: 100%; }
    .ztc-subscribe-form input { width: 100%; flex: 1; }
}