/* ====================================================================
 * 唯一客服 · 官网样式（单页落地 + 玻璃拟态渐变风）
 * 重写说明：
 *   1) 取消 index/about/news 多页面割裂，全部内容塞进 index.html
 *   2) "关于我们 / 文章详情 / 在线咨询" 全部用弹窗承载，不跳转
 *   3) 视觉风格：深色玻璃 + 紫蓝渐变 + 微动效 + 鼠标光晕
 * ==================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
    --bg-0: #06070d;          /* 页面底色 */
    --bg-1: #0d1024;          /* 次级底色 */
    --bg-2: #161a3a;          /* 卡片底色 */
    --ink-1: #f4f6ff;         /* 主文字 */
    --ink-2: #b9bedb;         /* 次文字 */
    --ink-3: #7c83a7;        /* 弱文字 */
    --line:  rgba(255,255,255,.10);
    --line-strong: rgba(255,255,255,.20);
    --brand: #6c8cff;         /* 主色（蓝紫） */
    --brand-2: #b06bff;       /* 副色（紫） */
    --brand-3: #20d6c0;       /* 点缀（青） */
    --danger: #ff6c7a;
    --warn:   #ffb454;
    --ok:     #4ade80;
    --grad-primary: linear-gradient(135deg,#6c8cff 0%,#b06bff 60%,#ff7ad9 100%);
    --grad-cool:    linear-gradient(135deg,#20d6c0 0%,#6c8cff 100%);
    --grad-text:    linear-gradient(135deg,#9eb6ff 0%,#d8a8ff 50%,#ffa3df 100%);
    --shadow-card:  0 20px 60px rgba(0,0,0,.45);
    --shadow-glow:  0 0 60px rgba(108,140,255,.45);
    --radius-lg: 22px;
    --radius-md: 14px;
    --radius-sm: 8px;
}

/* ---------- 2. 全局 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* 锚点跳转避开 fixed nav */
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
                 "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--ink-1);
    background: var(--bg-0);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}

/* 背景：渐变 + mesh（用纯 CSS，不依赖图片） */
body::before {
    content: "";
    position: fixed; inset: 0;
    background:
        radial-gradient(ellipse 60% 50% at 15% 10%, rgba(108,140,255,.35), transparent 60%),
        radial-gradient(ellipse 50% 40% at 85% 20%, rgba(176,107,255,.30), transparent 60%),
        radial-gradient(ellipse 60% 50% at 50% 95%, rgba(32,214,192,.20), transparent 60%),
        linear-gradient(180deg, #06070d 0%, #0a0c1f 60%, #06070d 100%);
    z-index: -2;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

[v-cloak] { display: none; }

/* 鼠标光晕（在 hero / section 上才有意义） */
.cursor-glow {
    position: fixed;
    width: 380px; height: 380px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(108,140,255,.18) 0%, transparent 70%);
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 0;
    transition: opacity .2s;
    opacity: 0;
}
body:hover .cursor-glow { opacity: 1; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* ---------- 3. 顶部导航 ---------- */
.site-nav {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 100;
    transition: all .35s ease;
}
.site-nav.scrolled {
    background: rgba(10,12,31,.72);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid var(--line);
}
.nav-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 68px;
}
.brand {
    display: flex; align-items: center; gap: 10px;
    font-weight: 700; font-size: 17px;
    letter-spacing: .5px;
}
.logo-mark {
    width: 36px; height: 36px;
    border-radius: 10px;
    background: var(--grad-primary);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; font-weight: 800;
    box-shadow: 0 6px 20px rgba(108,140,255,.45);
}
.nav-links {
    position: relative;
    display: flex; align-items: center; gap: 6px;
}
/* 滑块指示器（仅锚点项） */
.nav-slider {
    position: absolute;
    bottom: -6px;
    height: 3px;
    border-radius: 2px;
    background: var(--grad-primary);
    box-shadow: 0 0 12px rgba(108,140,255,.55);
    transition: left .45s cubic-bezier(.2,.9,.3,1.2), width .45s cubic-bezier(.2,.9,.3,1.2), opacity .35s;
    opacity: 0;
    pointer-events: none;
}
.nav-slider.show { opacity: 1; }
.nav-links a {
    position: relative;
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 14px;
    color: var(--ink-2);
    transition: color .25s, background .25s, transform .25s;
}
.nav-links a:not(.nav-cta):hover {
    color: var(--ink-1);
    background: rgba(255,255,255,.04);
    transform: translateY(-1px);
}
.nav-links a.active { color: var(--ink-1); }
.nav-links .nav-cta {
    margin-left: 8px;
    background: var(--grad-primary);
    color: #fff !important;        /* 覆盖 .active 的 color */
    font-weight: 600;
    box-shadow: 0 6px 18px rgba(108,140,255,.4);
}
.nav-links .nav-cta:hover { filter: brightness(1.1); transform: translateY(-1px); }
.nav-links .nav-cta.active {
    box-shadow: 0 6px 18px rgba(108,140,255,.4), 0 0 0 2px rgba(255,255,255,.35);
    filter: brightness(1.08);
}
@media (max-width: 760px) {
    .nav-inner { height: 60px; }
    .nav-links a:not(.nav-cta):not(.brand) { display: none; }
    .nav-links { gap: 0; }
}

/* ---------- 4. Hero ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex; align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}
.hero-slide {
    position: absolute; inset: 0;
    display: flex; align-items: center;
    opacity: 0;
    transition: opacity .8s ease;
    pointer-events: none;
}
.hero-slide.on { opacity: 1; pointer-events: auto; }
.hero-bg {
    position: absolute; inset: 0;
    z-index: -1;
}
.hero-bg.g1 { background:
    radial-gradient(circle at 20% 30%, rgba(108,140,255,.55), transparent 55%),
    radial-gradient(circle at 80% 70%, rgba(176,107,255,.55), transparent 55%),
    linear-gradient(135deg, #0a0c1f 0%, #1a1454 100%); }
.hero-bg.g2 { background:
    radial-gradient(circle at 70% 30%, rgba(32,214,192,.5), transparent 55%),
    radial-gradient(circle at 20% 70%, rgba(108,140,255,.5), transparent 55%),
    linear-gradient(135deg, #061a26 0%, #0a2052 100%); }
.hero-bg.g3 { background:
    radial-gradient(circle at 30% 30%, rgba(255,122,217,.45), transparent 55%),
    radial-gradient(circle at 80% 80%, rgba(32,214,192,.4), transparent 55%),
    linear-gradient(135deg, #1a0d2e 0%, #061a40 100%); }
.hero-bg.has-image {
    background-size: cover;
    background-position: center;
}
.hero-content {
    max-width: 760px;
}
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(255,255,255,.06);
    border: 1px solid var(--line-strong);
    color: var(--ink-2);
    font-size: 13px;
    margin-bottom: 22px;
    backdrop-filter: blur(10px);
}
.hero-badge .dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--brand-3);
    box-shadow: 0 0 8px var(--brand-3);
    animation: pulse 1.6s infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.4} }

.hero-content h1 {
    font-size: clamp(36px, 5.5vw, 64px);
    line-height: 1.1;
    font-weight: 800;
    margin: 0 0 18px;
    letter-spacing: -1px;
}
.hero-content h1 .grad {
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero-content p.sub {
    font-size: clamp(15px, 1.6vw, 18px);
    color: var(--ink-2);
    margin: 0 0 36px;
    max-width: 600px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    height: 48px;
    padding: 0 24px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all .25s ease;
}
.btn-primary {
    background: var(--grad-primary);
    color: #fff;
    box-shadow: 0 10px 30px rgba(108,140,255,.4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(108,140,255,.55); }
.btn-ghost {
    background: rgba(255,255,255,.06);
    color: var(--ink-1);
    border: 1px solid var(--line-strong);
    backdrop-filter: blur(10px);
}
.btn-ghost:hover { background: rgba(255,255,255,.10); }

.hero-dots {
    position: absolute; bottom: 60px; left: 0; right: 0;
    display: flex; justify-content: center; gap: 8px;
}
.hero-dots span {
    width: 28px; height: 4px;
    border-radius: 2px;
    background: rgba(255,255,255,.18);
    cursor: pointer;
    transition: all .3s;
}
.hero-dots span.on {
    width: 44px;
    background: var(--grad-primary);
}

/* ---------- 5. 区块通用 ---------- */
.section {
    padding: 100px 0;
    position: relative;
}
.section.alt {
    background: linear-gradient(180deg, transparent, rgba(255,255,255,.015), transparent);
}
.section-head { text-align: center; margin-bottom: 56px; }
.section-head .kicker {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--brand);
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(108,140,255,.10);
    border: 1px solid rgba(108,140,255,.25);
    margin-bottom: 14px;
}
.section-head h2 {
    font-size: clamp(28px, 3.5vw, 42px);
    font-weight: 800;
    margin: 0 0 12px;
    letter-spacing: -1px;
}
.section-head .sub {
    color: var(--ink-2);
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto;
}

/* ---------- 6. 功能亮点 ---------- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}
.feature-card {
    position: relative;
    padding: 26px 24px;
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
    border: 1px solid var(--line);
    transition: all .35s ease;
    overflow: hidden;
}
.feature-card::before {
    content: "";
    position: absolute; inset: 0;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: linear-gradient(135deg, transparent, rgba(108,140,255,.4), transparent);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    opacity: 0;
    transition: opacity .35s;
}
.feature-card:hover {
    transform: translateY(-6px);
    background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
    box-shadow: var(--shadow-card);
}
.feature-card:hover::before { opacity: 1; }
/* 小图标：与标题同行排布 */
.f-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 30px; height: 30px;
    border-radius: 8px;
    background: rgba(108,140,255,.10);
    border: 1px solid rgba(108,140,255,.22);
    font-size: 16px;
    line-height: 1;
    box-shadow: none;
    transition: transform .35s cubic-bezier(.2,.9,.3,1.2), background .25s, border-color .25s;
}
.feature-card:hover .f-icon {
    background: rgba(108,140,255,.20);
    border-color: rgba(108,140,255,.5);
    transform: scale(1.1) rotate(-6deg);
}
.feature-card h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    margin: 0 0 8px;
    line-height: 1.4;
    white-space: nowrap;       /* 标题保持单行不换行 */
}
.feature-card h3 > span:last-child { overflow: hidden; text-overflow: ellipsis; }
.feature-card p { color: var(--ink-2); font-size: 14px; margin: 0; line-height: 1.7; }

/* 手机端：emoji 图标与电脑同款，但需要明显放大才与卡片尺寸匹配 */
@media (max-width: 760px) {
    .f-icon {
        width: 44px; height: 44px;
        font-size: 22px;
        border-radius: 10px;
    }
}

/* ---------- 7. 数据统计 ---------- */
.stats-band {
    padding: 70px 0;
    background: linear-gradient(135deg, rgba(108,140,255,.10), rgba(176,107,255,.10));
    border-block: 1px solid var(--line);
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 30px;
    text-align: center;
}
.stats-grid .num {
    font-size: clamp(34px, 4vw, 48px);
    font-weight: 800;
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1.1;
}
.stats-grid .lbl {
    color: var(--ink-2);
    font-size: 14px;
    margin-top: 6px;
}

/* ---------- 8. 流程 ---------- */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    position: relative;
}
.step {
    text-align: center;
    padding: 32px 20px;
    border-radius: var(--radius-md);
    background: rgba(255,255,255,.03);
    border: 1px solid var(--line);
    transition: transform .3s;
}
.step:hover { transform: translateY(-4px); }
.s-num {
    width: 56px; height: 56px;
    margin: 0 auto 16px;
    border-radius: 16px;
    background: var(--grad-primary);
    color: #fff;
    font-weight: 800;
    font-size: 22px;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 10px 28px rgba(108,140,255,.45);
}
.step h4 { margin: 0 0 6px; font-size: 17px; }
.step p { color: var(--ink-2); font-size: 13.5px; margin: 0; }

/* ---------- 9. 新闻列表（卡片） ---------- */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 22px;
}
.news-card {
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
    border: 1px solid var(--line);
    overflow: hidden;
    cursor: pointer;
    transition: all .3s ease;
    display: flex; flex-direction: column;
}
.news-card:hover {
    transform: translateY(-4px);
    border-color: var(--line-strong);
    box-shadow: var(--shadow-card);
}
.news-cover {
    aspect-ratio: 16 / 9;
    background: var(--grad-primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 48px;
    color: #fff;
    position: relative;
    overflow: hidden;
}
.news-cover img { width: 100%; height: 100%; object-fit: cover; }
.news-cover::after {
    content: "";
    position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,.5));
}
.news-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.news-body .cat {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 999px;
    background: rgba(108,140,255,.15);
    color: var(--brand);
    font-size: 12px;
    margin-bottom: 12px;
    width: fit-content;
}
.news-body h3 {
    font-size: 17px;
    margin: 0 0 10px;
    line-height: 1.4;
}
.news-body .summary {
    color: var(--ink-2);
    font-size: 13.5px;
    line-height: 1.6;
    margin-bottom: 14px;
    flex: 1;
}
.news-body .meta {
    display: flex; justify-content: space-between;
    color: var(--ink-3);
    font-size: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--line);
}
.empty-tip {
    text-align: center;
    color: var(--ink-3);
    padding: 60px 0;
    font-size: 14px;
}

/* ---------- 10. 关于 + 联系（直接放在页面内 section 形式也用） ---------- */
.about-wrap {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: start;
}
@media (max-width: 820px) { .about-wrap { grid-template-columns: 1fr; } }
.rich-content {
    background: rgba(255,255,255,.04);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 32px;
    color: var(--ink-2);
    font-size: 15px;
    line-height: 1.85;
}
.rich-content h3 { color: var(--ink-1); margin-top: 24px; font-size: 17px; }
.rich-content h3:first-child { margin-top: 0; }
.rich-content p { margin: 0 0 14px; }

.contact-card {
    background: var(--grad-primary);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: 0 20px 50px rgba(108,140,255,.35);
    color: #fff;
}
.contact-card h3 { margin: 0 0 8px; font-size: 22px; }
.contact-card .desc { opacity: .85; font-size: 14px; margin: 0 0 22px; }
.contact-card .ci-row {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,.18);
    font-size: 14px;
}
.contact-card .ci-row:last-of-type { border-bottom: 0; }
.contact-card .ci-row .ico {
    width: 36px; height: 36px;
    border-radius: 10px;
    background: rgba(255,255,255,.18);
    display: flex; align-items: center; justify-content: center;
    font-size: 16px;
}

/* ---------- 11. 页脚 ---------- */
.site-footer {
    padding: 70px 0 30px;
    background: linear-gradient(180deg, transparent, rgba(0,0,0,.4));
    border-top: 1px solid var(--line);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 40px;
}
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 {
    font-size: 15px;
    margin: 0 0 18px;
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.f-about { color: var(--ink-2); font-size: 13.5px; line-height: 1.7; margin: 0; }
.f-links { display: flex; flex-direction: column; gap: 10px; }
.f-links a { color: var(--ink-2); font-size: 13.5px; transition: color .2s; }
.f-links a:hover { color: var(--ink-1); }
.f-contact { display: flex; flex-direction: column; gap: 10px; }
.f-contact p {
    margin: 0; color: var(--ink-2); font-size: 13.5px;
    display: flex; align-items: center; gap: 8px;
}
.f-contact .ico { font-size: 14px; }
.footer-bottom {
    text-align: center;
    color: var(--ink-3);
    font-size: 12px;
    padding: 30px 0 0;
    margin-top: 50px;
    border-top: 1px solid var(--line);
}

/* ---------- 12. 弹窗（关于 / 文章 / 咨询） ---------- */
.modal-mask {
    position: fixed; inset: 0;
    background: rgba(0,0,0,.65);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex; align-items: center; justify-content: center;
    padding: 24px;
    animation: fadeIn .25s ease;
}
@keyframes fadeIn { from{opacity:0} to{opacity:1} }
.modal-box {
    background: linear-gradient(180deg, #161938, #0f1230);
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 640px;
    max-height: 86vh;
    display: flex; flex-direction: column;
    overflow: hidden;
    box-shadow: 0 30px 80px rgba(0,0,0,.6), 0 0 0 1px rgba(108,140,255,.2);
    animation: modalIn .35s cubic-bezier(.2,.9,.3,1.2);
}
@keyframes modalIn { from{transform:translateY(20px) scale(.96);opacity:0} to{transform:none;opacity:1} }
.modal-box.lg { max-width: 820px; }
.modal-head {
    display: flex; align-items: center; justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--line);
    background: linear-gradient(135deg, rgba(108,140,255,.10), rgba(176,107,255,.06));
}
.modal-head h3 {
    margin: 0;
    font-size: 18px;
    display: flex; align-items: center; gap: 10px;
}
.modal-head h3::before {
    content: ""; width: 4px; height: 18px; border-radius: 2px;
    background: var(--grad-primary);
}
.modal-close {
    width: 32px; height: 32px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: transparent;
    color: var(--ink-2);
    font-size: 18px; line-height: 1;
    cursor: pointer;
    transition: all .2s;
}
.modal-close:hover { background: rgba(255,255,255,.08); color: var(--ink-1); }
.modal-body { padding: 24px; overflow-y: auto; flex: 1; }
.modal-foot { padding: 16px 24px; border-top: 1px solid var(--line); display: flex; gap: 10px; justify-content: flex-end; }

/* 关于弹窗内 */
.modal-about .modal-body { padding: 28px 32px; }

/* 文章弹窗内 */
.article-cover {
    width: calc(100% + 48px);
    margin: -24px -24px 18px;
    aspect-ratio: 21 / 9;
    background: var(--grad-primary);
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    font-size: 64px;
    overflow: hidden;
}
.article-cover img { width: 100%; height: 100%; object-fit: cover; }
.article-meta {
    display: flex; align-items: center; gap: 14px;
    color: var(--ink-3);
    font-size: 12.5px;
    margin-bottom: 18px;
}
.article-meta .cat {
    padding: 2px 10px;
    border-radius: 999px;
    background: rgba(108,140,255,.15);
    color: var(--brand);
}
.article-body { color: var(--ink-2); font-size: 15px; line-height: 1.85; }
.article-body h3 { color: var(--ink-1); margin-top: 22px; }
.article-body p { margin: 0 0 14px; }

/* 咨询表单 */
.inquiry-form .row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 12px;
}
@media (max-width: 520px) { .inquiry-form .row { grid-template-columns: 1fr; } }
.inquiry-form input, .inquiry-form textarea {
    width: 100%;
    padding: 12px 14px;
    background: rgba(255,255,255,.04);
    border: 1px solid var(--line);
    border-radius: 10px;
    color: var(--ink-1);
    font-size: 14px;
    font-family: inherit;
    transition: all .2s;
}
.inquiry-form input:focus, .inquiry-form textarea:focus {
    outline: none;
    border-color: var(--brand);
    background: rgba(108,140,255,.06);
    box-shadow: 0 0 0 3px rgba(108,140,255,.15);
}
.inquiry-form textarea { min-height: 110px; resize: vertical; margin-bottom: 14px; }
.inquiry-form label { display: block; font-size: 13px; color: var(--ink-2); margin-bottom: 6px; }
.btn-submit {
    width: 100%;
    height: 46px;
    border: none;
    border-radius: 12px;
    background: var(--grad-primary);
    color: #fff;
    font-weight: 700;
    font-size: 15px;
    cursor: pointer;
    box-shadow: 0 10px 28px rgba(108,140,255,.4);
    transition: all .2s;
}
.btn-submit:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 14px 34px rgba(108,140,255,.55); }
.btn-submit:disabled { opacity: .55; cursor: not-allowed; }
.inquiry-extra {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px dashed var(--line);
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px;
    font-size: 13px;
    color: var(--ink-2);
}
.inquiry-extra span { display: flex; align-items: center; gap: 6px; }

/* ---------- 13. 浮动咨询按钮（FAB） ---------- */
.fab {
    position: fixed; right: 26px; bottom: 26px;
    z-index: 90;
    height: 56px; padding: 0 22px 0 18px;
    border-radius: 999px;
    background: var(--grad-primary);
    color: #fff;
    border: none;
    cursor: pointer;
    font-weight: 700;
    font-size: 14px;
    display: inline-flex; align-items: center; gap: 10px;
    box-shadow: 0 14px 36px rgba(108,140,255,.55);
    transition: transform .2s;
}
.fab:hover { transform: translateY(-2px) scale(1.03); }
.fab .ring {
    width: 18px; height: 18px;
    border-radius: 50%;
    border: 2px solid #fff;
    border-top-color: transparent;
    animation: spin 1.4s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- 14. Toast ---------- */
.site-toast {
    position: fixed; left: 50%; top: 90px;
    transform: translateX(-50%);
    background: rgba(0,0,0,.85);
    color: #fff;
    padding: 12px 22px;
    border-radius: 12px;
    border: 1px solid var(--line-strong);
    box-shadow: 0 14px 36px rgba(0,0,0,.4);
    z-index: 2000;
    font-size: 14px;
    backdrop-filter: blur(10px);
    animation: fadeIn .25s ease;
}

/* ---------- 15. 滚动条美化（弹窗内） ---------- */
.modal-body::-webkit-scrollbar { width: 8px; }
.modal-body::-webkit-scrollbar-track { background: transparent; }
.modal-body::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,.10);
    border-radius: 4px;
}
.modal-body::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,.18); }