/* ===== 天石设计 · 设计系统 ===== */
:root {
    --ts-ink: #0b1020;
    --ts-ink-2: #1a2238;
    --ts-muted: #6b7390;
    --ts-line: #e7e9f2;
    --ts-bg: #f6f7fb;
    --ts-card: #ffffff;
    --ts-primary: #2b5cff;
    --ts-primary-2: #6a3cff;
    --ts-gold: #c9a96a;
    --ts-grad: linear-gradient(135deg, #2b5cff 0%, #6a3cff 55%, #b14bff 100%);
    --ts-grad-soft: linear-gradient(135deg, #eef2ff 0%, #f4eefe 100%);
    --ts-shadow-sm: 0 2px 8px rgba(20, 30, 60, .06);
    --ts-shadow: 0 12px 40px rgba(20, 30, 60, .10);
    --ts-shadow-lg: 0 24px 70px rgba(20, 30, 60, .16);
    --ts-radius: 18px;
    --ts-radius-sm: 12px;
    --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
    --font-display: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Noto Sans SC", sans-serif;
}

* { box-sizing: border-box; }

body {
    font-family: var(--font-sans);
    color: var(--ts-ink);
    background: var(--ts-bg);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, .display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
    font-family: var(--font-display);
    letter-spacing: -.02em;
}

a { color: var(--ts-primary); text-decoration: none; }
a:hover { color: var(--ts-primary-2); }

.text-gradient {
    background: var(--ts-grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-muted-2 { color: var(--ts-muted) !important; }

/* ===== 导航 ===== */
.ts-nav {
    backdrop-filter: saturate(180%) blur(14px);
    background: rgba(255, 255, 255, .82);
    border-bottom: 1px solid rgba(231, 233, 242, .8);
    transition: all .25s ease;
}
.ts-nav .navbar-brand {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--ts-ink);
    display: flex;
    align-items: center;
    gap: .55rem;
}
.ts-logo {
    width: 26px; height: 38px;
    border-radius: 6px;
    background: var(--ts-grad);
    display: inline-flex; flex-direction: row;
    align-items: center; justify-content: center;
    gap: 5px;
    color: #fff; font-size: 1.05rem;
    box-shadow: 0 6px 18px rgba(43, 92, 255, .35);
    flex: none;
}
.ts-logo-svg {
    width: 20px; height: 20px;
    display: block;
    flex: none;
}
.ts-logo-word {
    writing-mode: vertical-rl;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: .62rem;
    letter-spacing: .12em;
    line-height: 1;
}
.ts-brand-sub {
    font-size: .92rem;
    font-weight: 600;
    color: var(--ts-ink-2);
    letter-spacing: .02em;
}
.ts-nav .nav-link {
    color: var(--ts-ink-2);
    font-weight: 500;
    padding: .5rem 1rem !important;
    border-radius: 10px;
    transition: all .2s ease;
}
.ts-nav .nav-link:hover { color: var(--ts-primary); background: rgba(43, 92, 255, .06); }
.ts-nav .nav-link.active { color: var(--ts-primary); }

/* ===== 按钮 ===== */
.btn-grad {
    background: var(--ts-grad);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    padding: .7rem 1.5rem;
    box-shadow: 0 8px 22px rgba(43, 92, 255, .28);
    transition: transform .2s ease, box-shadow .2s ease;
}
.btn-grad:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 14px 32px rgba(43, 92, 255, .36); }
.btn-ghost {
    background: rgba(255,255,255,.7);
    color: var(--ts-ink);
    border: 1px solid var(--ts-line);
    border-radius: 12px;
    font-weight: 600;
    padding: .7rem 1.5rem;
    transition: all .2s ease;
}
.btn-ghost:hover { background: #fff; border-color: var(--ts-primary); color: var(--ts-primary); transform: translateY(-2px); }

/* ===== Hero ===== */
.ts-hero {
    position: relative;
    overflow: hidden;
    padding: 7rem 0 5rem;
    background:
        radial-gradient(1100px 600px at 80% -10%, rgba(106, 60, 255, .18), transparent 60%),
        radial-gradient(900px 500px at 10% 10%, rgba(43, 92, 255, .16), transparent 60%),
        linear-gradient(180deg, #fbfcff 0%, #f6f7fb 100%);
}
.ts-hero::after {
    content: "";
    position: absolute; inset: 0;
    background-image: radial-gradient(rgba(20,30,60,.05) 1px, transparent 1px);
    background-size: 22px 22px;
    mask-image: linear-gradient(180deg, #000 0%, transparent 70%);
    pointer-events: none;
}
.ts-hero .eyebrow {
    display: inline-flex; align-items: center; gap: .5rem;
    padding: .4rem .9rem;
    border-radius: 999px;
    background: rgba(255,255,255,.8);
    border: 1px solid var(--ts-line);
    color: var(--ts-ink-2);
    font-size: .85rem; font-weight: 500;
    box-shadow: var(--ts-shadow-sm);
}
.ts-hero h1 { font-weight: 800; line-height: 1.08; }
.ts-hero .lead { color: var(--ts-muted); font-size: 1.18rem; }

/* 浏览器框 mockup */
.ts-browser {
    border-radius: 16px;
    background: #fff;
    box-shadow: var(--ts-shadow-lg);
    overflow: hidden;
    border: 1px solid var(--ts-line);
}
.ts-browser-bar {
    display: flex; align-items: center; gap: .5rem;
    padding: .65rem 1rem;
    background: #f3f4f8;
    border-bottom: 1px solid var(--ts-line);
}
.ts-browser-dot { width: 11px; height: 11px; border-radius: 50%; }
.ts-browser-url {
    margin-left: .6rem;
    flex: 1;
    background: #fff;
    border-radius: 8px;
    padding: .25rem .7rem;
    font-size: .8rem;
    color: var(--ts-muted);
    border: 1px solid var(--ts-line);
    display: flex; align-items: center; gap: .4rem;
}
.ts-browser-screen { aspect-ratio: 16/10; background: #fff; position: relative; }
.ts-browser-screen img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ===== 通用区块 ===== */
.section { padding: 4.5rem 0; }
.section-eyebrow {
    color: var(--ts-primary);
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;
    font-size: .8rem;
}
.section-title { font-weight: 800; }

/* ===== 卡片 ===== */
.ts-card {
    background: var(--ts-card);
    border: 1px solid var(--ts-line);
    border-radius: var(--ts-radius);
    padding: 1.5rem;
    height: 100%;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.ts-card h5, .ts-card h6 { margin-bottom: .5rem; }
.ts-card p { line-height: 1.6; margin-bottom: 0; }
.ts-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--ts-shadow);
    border-color: rgba(43, 92, 255, .25);
}
.ts-icon {
    width: 52px; height: 52px;
    border-radius: 14px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 1.4rem;
    color: #fff;
    background: var(--ts-grad);
    box-shadow: 0 8px 20px rgba(43, 92, 255, .28);
    margin-bottom: 1.1rem;
}
.ts-icon.alt-1 { background: linear-gradient(135deg, #00c6ff, #0072ff); }
.ts-icon.alt-2 { background: linear-gradient(135deg, #ff9966, #ff5e62); }
.ts-icon.alt-3 { background: linear-gradient(135deg, #11998e, #38ef7d); }
.ts-icon.alt-4 { background: linear-gradient(135deg, #f7971e, #ffd200); }
.ts-icon.alt-5 { background: linear-gradient(135deg, #8e2de2, #4a00e0); }
.ts-icon.alt-6 { background: linear-gradient(135deg, #ee0979, #ff6a00); }

/* 统计数字 */
.ts-stat .num {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 2.4rem;
    line-height: 1;
    background: var(--ts-grad);
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.ts-stat .label { color: var(--ts-muted); font-size: .92rem; }

/* 资质徽章 */
.ts-credential {
    display: flex; gap: 1rem; align-items: flex-start;
    background: #fff; border: 1px solid var(--ts-line);
    border-radius: var(--ts-radius);
    padding: 1.5rem;
    height: 100%;
    transition: all .25s ease;
}
.ts-credential:hover { box-shadow: var(--ts-shadow); transform: translateY(-4px); }
.ts-credential .seal {
    flex: 0 0 auto;
    width: 56px; height: 56px;
    border-radius: 50%;
    border: 2px dashed var(--ts-gold);
    color: var(--ts-gold);
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 1.5rem;
}

/* 价格卡片 */
.ts-price-card {
    background: #fff;
    border: 1px solid var(--ts-line);
    border-radius: var(--ts-radius);
    padding: 2rem;
    height: 100%;
    position: relative;
    transition: all .25s ease;
}
.ts-price-card.featured {
    border-color: transparent;
    background: linear-gradient(180deg, #fff, #fff) padding-box,
                var(--ts-grad) border-box;
    border: 2px solid transparent;
    box-shadow: var(--ts-shadow);
}
.ts-price-card .ribbon {
    position: absolute; top: -12px; right: 18px;
    background: var(--ts-grad); color: #fff;
    font-size: .72rem; font-weight: 600;
    padding: .3rem .7rem; border-radius: 999px;
    box-shadow: 0 6px 16px rgba(43,92,255,.3);
}

/* 页脚 */
.ts-footer {
    background: linear-gradient(180deg, #0b1020 0%, #141a30 100%);
    color: #e8ebf5;
    padding: 4rem 0 2rem;
}
.ts-footer h5 { color: #fff; font-weight: 700; margin-bottom: 1.1rem; }
.ts-footer p { color: #d6dae8; }
.ts-footer a { color: #d6dae8; }
.ts-footer a:hover { color: #fff; }
.ts-footer .brand-logo {
    width: 38px; height: 38px; border-radius: 10px;
    background: var(--ts-grad);
    display: inline-flex; align-items: center; justify-content: center;
    color: #fff;
}
.ts-footer .foot-link { color: #b8bedd; }
.ts-footer .foot-link:hover { color: #fff; }
.ts-footer .text-muted { color: #9aa1b4 !important; }
.ts-footer hr { border-color: rgba(255,255,255,.12) !important; }

/* 工具类 */
.glass {
    background: rgba(255,255,255,.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,.6);
}
.divider-dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--ts-primary); margin: 0 .6rem .2rem; vertical-align: middle; }

/* 产品详情描述 */
.product-desc { line-height: 1.85; color: #2a3148; }
.product-desc img { max-width: 100%; height: auto; border-radius: 12px; margin: 1rem 0; }
.product-desc p { margin-bottom: 1.1rem; }
.product-desc h2, .product-desc h3 { margin-top: 2rem; }

/* 动画 */
@keyframes ts-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
.ts-float { animation: ts-float 6s ease-in-out infinite; }

@keyframes ts-fade-up {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.ts-reveal { animation: ts-fade-up .7s ease both; }

/* ===== 移动端适配 ===== */
@media (max-width: 991.98px) {
    /* 价格卡在平板及以下取消吸顶，避免遮挡 */
    .ts-price-card.sticky-top { position: static !important; top: auto !important; }
    .ts-browser { margin-top: .5rem; }
}

@media (max-width: 575.98px) {
    .ts-hero { padding: 2.8rem 0 2rem; }
    .ts-hero h1 { font-size: 1.6rem !important; line-height: 1.2; }
    .ts-hero .lead { font-size: .95rem; }
    /* 手机端标题渐变行允许换行，避免溢出屏幕 */
    .ts-hero h1 .text-gradient { white-space: normal !important; word-break: break-word; }
    /* Hero 按钮组在手机端堆叠为整行 */
    .ts-hero .d-flex.flex-wrap.gap-3 { flex-direction: column; gap: .6rem !important; }
    .ts-hero .d-flex.flex-wrap.gap-3 > .btn { width: 100%; }
    /* Hero 特性标签行在手机端缩小字号，保持一行 */
    .ts-hero .d-flex.flex-nowrap.gap-2 { font-size: .76rem; gap: .5rem !important; }
    /* 浏览器框在手机端缩小内边距 */
    .ts-browser-bar { padding: .4rem .6rem; }
    .ts-browser-url { font-size: .68rem; }
    /* 统计数字缩小 */
    .ts-stat .num { font-size: 1.6rem; }
    .ts-stat .label { font-size: .78rem; }
    /* 区块内边距收紧 */
    .section { padding: 2.2rem 0; }
    .ts-card { padding: 1.15rem; }
    .ts-card h5, .ts-card h6 { font-size: .95rem; }
    .ts-card p, .ts-card ul.small { font-size: .82rem; line-height: 1.55; }
    .ts-icon { width: 42px; height: 42px; font-size: 1.1rem; margin-bottom: .7rem; }
    /* 功能特性列表项字号 */
    .ts-card ul.small { font-size: .8rem; }
    .ts-card ul.small li { margin-bottom: .35rem !important; }
    /* CTA 区块按钮整行 */
    .rounded-4 .btn { width: 100%; margin-bottom: .5rem !important; }
    .rounded-4 .btn.me-2 { margin-right: 0 !important; }
    /* 页脚二维码缩小 */
    .ts-footer img { width: 80px !important; height: 80px !important; }
    /* 导航折叠菜单加间距 */
    .ts-nav .navbar-collapse { padding-top: .5rem; }
    .ts-nav .navbar-nav .btn { margin-top: .5rem; }
    /* 容器左右内边距收紧 */
    .container { padding-left: .9rem; padding-right: .9rem; }
}