/* ===== 页面作用域：.page-privacy ===== */
.page-privacy {
    --privacy-toc-width: 260px;
    --privacy-rule-border: #2A3354;
    --privacy-rule-bg: rgba(27, 35, 64, 0.36);
    --privacy-highlight: rgba(155, 77, 255, 0.08);
    --privacy-hero-fallback: linear-gradient(135deg, #0B1026 0%, #131A3A 58%, #1B2340 100%);
    --privacy-accent-line: linear-gradient(90deg, #FF6A00 0%, #9B4DFF 50%, #00FFAA 100%);
}

/* ===== 首屏区域 ===== */
.page-privacy__hero {
    padding: clamp(28px, 5vw, 68px) 0 clamp(20px, 4vw, 52px);
    background:
        radial-gradient(circle at 82% 26%, rgba(155, 77, 255, 0.14), transparent 34%),
        radial-gradient(circle at 18% 54%, rgba(255, 106, 0, 0.1), transparent 32%),
        var(--privacy-hero-fallback);
    position: relative;
    overflow: hidden;
}

.page-privacy__hero::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 32px 32px;
    mask-image: radial-gradient(circle at 50% 36%, #000 0%, transparent 72%);
}

.page-privacy__hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: clamp(22px, 4vw, 44px);
    align-items: end;
}

.page-privacy__eyebrow {
    margin-bottom: 12px;
}

.page-privacy__hero-title {
    font-size: clamp(42px, 7vw, 76px);
    line-height: 0.96;
    margin-bottom: 16px;
    color: var(--c-text);
    letter-spacing: -0.02em;
}

.page-privacy__hero-lead {
    max-width: 66ch;
    font-family: var(--font-body);
    font-size: clamp(15px, 1.6vw, 18px);
    line-height: 1.75;
    color: var(--c-text-dim);
    margin: 0;
}

.page-privacy__hero-visual {
    margin: 0;
    position: relative;
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-float);
    transform: perspective(1200px) rotateX(1.6deg);
    transform-origin: bottom center;
}

.page-privacy__hero-visual::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(11, 16, 38, 0.62), transparent 42%, rgba(155, 77, 255, 0.16) 100%);
    z-index: 1;
    pointer-events: none;
}

.page-privacy__hero-img {
    display: block;
    width: 100%;
    height: auto;
    max-width: 100%;
    object-fit: cover;
    aspect-ratio: 1920 / 400;
}

/* ===== 面包屑 ===== */
.page-privacy__breadcrumb {
    padding-top: clamp(16px, 3vw, 28px);
}

/* ===== 正文两栏布局 ===== */
.page-privacy__body {
    display: grid;
    grid-template-columns: 1fr;
    gap: clamp(24px, 4vw, 48px);
    padding-top: clamp(24px, 4vw, 44px);
    padding-bottom: clamp(48px, 8vw, 96px);
}

/* ===== 左侧目录 ===== */
.page-privacy__toc {
    position: relative;
}

.page-privacy__toc-inner {
    position: sticky;
    top: 104px;
    background: rgba(19, 26, 58, 0.76);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-left: 3px solid var(--c-orange);
    border-radius: var(--radius-card);
    padding: 22px 18px 18px;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-float);
}

.page-privacy__toc-label {
    margin: 0 0 14px;
    font-family: var(--font-headline);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--c-orange);
}

.page-privacy__toc-list {
    list-style: none;
    margin: 0 0 18px;
    padding: 0;
    display: grid;
    gap: 4px;
}

.page-privacy__toc-item {
    counter-increment: toc-item;
}

.page-privacy__toc-link {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 9px 12px 9px 14px;
    border-radius: 10px;
    color: var(--c-text-dim);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}

.page-privacy__toc-item:first-child {
    counter-reset: toc-item;
}

.page-privacy__toc-link::before {
    content: counter(toc-item, decimal-leading-zero);
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--c-purple);
    min-width: 20px;
}

.page-privacy__toc-link:hover {
    background: rgba(155, 77, 255, 0.14);
    color: var(--c-text);
    transform: translateX(3px);
}

.page-privacy__backtop {
    width: 100%;
    justify-content: center;
}

/* ===== 右侧正文 ===== */
.page-privacy__content {
    min-width: 0;
}

.page-privacy__prose {
    max-width: 820px;
}

.page-privacy__section {
    padding: clamp(24px, 4vw, 36px) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    scroll-margin-top: 110px;
}

.page-privacy__section:first-of-type {
    padding-top: 0;
}

.page-privacy__section-head {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    margin-bottom: 24px;
}

.page-privacy__section-num {
    font-family: var(--font-headline);
    font-size: clamp(28px, 5vw, 46px);
    line-height: 1;
    font-weight: 900;
    color: transparent;
    background: linear-gradient(135deg, var(--c-orange), var(--c-purple));
    -webkit-background-clip: text;
    background-clip: text;
    min-width: 84px;
    text-align: right;
    opacity: 0.92;
}

.page-privacy__section-title {
    margin: 2px 0 8px;
    font-family: var(--font-headline);
    font-size: clamp(22px, 3vw, 30px);
    font-weight: 700;
    line-height: 1.2;
    color: var(--c-text);
}

.page-privacy__section-intro {
    margin: 0;
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.7;
    color: var(--c-text-dim);
    max-width: 52ch;
}

/* ===== 条款列表 ===== */
.page-privacy__rule-list {
    display: grid;
    gap: 14px;
}

.page-privacy__rule {
    position: relative;
    background: var(--privacy-rule-bg);
    border: 1px solid var(--privacy-rule-border);
    border-radius: var(--radius-panel);
    padding: 18px 18px 18px 22px;
    transition: border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}

.page-privacy__rule::before {
    content: "";
    position: absolute;
    left: 0;
    top: 18px;
    bottom: 18px;
    width: 3px;
    border-radius: 0 2px 2px 0;
    background: var(--privacy-accent-line);
    opacity: 0.72;
}

.page-privacy__rule:hover {
    border-color: rgba(155, 77, 255, 0.42);
    background: var(--privacy-highlight);
    box-shadow: 0 6px 24px rgba(11, 16, 38, 0.24);
}

.page-privacy__rule-title {
    margin: 0 0 8px;
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 700;
    color: var(--c-text);
    letter-spacing: 0.01em;
}

.page-privacy__rule-text {
    margin: 0;
    font-family: var(--font-body);
    font-size: 14px;
    line-height: 1.8;
    color: var(--c-text-dim);
}

.page-privacy__rule-text strong {
    color: var(--c-text);
    font-weight: 600;
}

.page-privacy__rule-sublist {
    margin: 10px 0 0;
    padding-left: 20px;
    display: grid;
    gap: 6px;
}

.page-privacy__rule-sublist li {
    font-family: var(--font-body);
    font-size: 14px;
    line-height: 1.75;
    color: var(--c-text-dim);
}

.page-privacy__rule-sublist li::marker {
    color: var(--c-purple);
}

/* ===== 结语 ===== */
.page-privacy__outro {
    margin-top: clamp(28px, 5vw, 48px);
    padding: clamp(22px, 3vw, 34px);
    background: linear-gradient(135deg, rgba(19, 26, 58, 0.88), rgba(27, 35, 64, 0.72));
    border-radius: var(--radius-card);
    border: 1px solid rgba(155, 77, 255, 0.18);
    position: relative;
    overflow: hidden;
}

.page-privacy__outro::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 82% 18%, rgba(255, 106, 0, 0.14), transparent 40%);
    pointer-events: none;
}

.page-privacy__slant {
    height: 3px;
    background: var(--privacy-accent-line);
    margin-bottom: 18px;
    border-radius: 99px;
}

.page-privacy__outro-text {
    margin: 0;
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.9;
    color: var(--c-text);
    position: relative;
    z-index: 1;
    max-width: 62ch;
}

.page-privacy__contact-btn {
    margin-top: 20px;
    position: relative;
    z-index: 1;
}

/* ===== 响应式：窄屏 < 812px ===== */
@media (max-width: 811px) {
    .page-privacy__toc {
        display: block;
        order: -1;
    }

    .page-privacy__toc-inner {
        position: relative;
        top: auto;
        padding: 18px 16px;
    }

    .page-privacy__toc-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 2px 8px;
    }

    .page-privacy__toc-link {
        padding: 8px 8px 8px 10px;
        font-size: 13px;
        gap: 6px;
    }

    .page-privacy__backtop {
        display: none;
    }

    .page-privacy__section-num {
        min-width: 54px;
    }
}

/* ===== 响应式：超窄屏 < 480px ===== */
@media (max-width: 479px) {
    .page-privacy__hero-title {
        font-size: 40px;
    }

    .page-privacy__hero-lead {
        font-size: 14px;
    }

    .page-privacy__section-num {
        min-width: 42px;
        font-size: 30px;
    }

    .page-privacy__section-head {
        gap: 10px;
    }

    .page-privacy__rule-title {
        font-size: 15px;
    }

    .page-privacy__rule {
        padding: 16px 14px 16px 18px;
    }

    .page-privacy__toc-list {
        grid-template-columns: 1fr;
    }
}

/* ===== 桌面端 ≥ 812px 两栏布局 ===== */
@media (min-width: 812px) {
    .page-privacy__body {
        grid-template-columns: var(--privacy-toc-width) minmax(0, 1fr);
        align-items: start;
    }

    .page-privacy__toc-inner {
        min-height: 160px;
    }
}

/* ===== 桌面宽屏 ≥ 1280px 增强 ===== */
@media (min-width: 1280px) {
    .page-privacy__hero {
        padding-top: clamp(48px, 6vw, 84px);
    }

    .page-privacy__hero-inner {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1.38fr);
        align-items: end;
        gap: 64px;
    }

    .page-privacy__hero-copy {
        padding-bottom: 16px;
    }

    .page-privacy__hero-title {
        font-size: 72px;
    }
}