@charset "utf-8";
/* ==========================================================================
   小狐狸科技 · 站点样式
   命名规范：BEM（block__element--modifier），状态类使用 is- 前缀
   1. 设计变量
   2. 基础重置
   3. 通用布局与排版
   4. 按钮
   5. 头部导航
   6. 首页 Hero
   7. 数据条
   8. 产品
   9. 特性
   10. 新闻
   11. CTA
   12. 页脚
   13. 内页通用
   14. 文章排版
   15. 产品详情
   16. 联系我们
   17. 浮动组件
   18. 响应式
   ========================================================================== */

/* ==========================================================================
   1. 设计变量
   ========================================================================== */
:root {
    /* 颜色 */
    --color-ink: #101828;
    --color-ink-soft: #1d2939;
    --color-body: #475467;
    --color-muted: #667085;
    --color-line: #eaecf0;
    --color-line-strong: #d0d5dd;
    --color-bg: #f7f8fa;
    --color-bg-soft: #fbfbfc;
    --color-surface: #ffffff;
    --color-accent: #ff6b2c;
    --color-accent-strong: #ea5518;
    --color-accent-soft: #fff3ec;
    --color-accent-soft-2: #ffe3d4;
    --color-dark: #0c111d;
    --color-dark-soft: #161b26;

    /* 字体 */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "HarmonyOS Sans SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto,
        "Helvetica Neue", Arial, sans-serif;

    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-pill: 999px;

    /* 阴影 */
    --shadow-xs: 0 1px 2px rgba(16, 24, 40, 0.05);
    --shadow-sm: 0 4px 12px -2px rgba(16, 24, 40, 0.08);
    --shadow-md: 0 16px 32px -16px rgba(16, 24, 40, 0.16);
    --shadow-lg: 0 32px 64px -32px rgba(16, 24, 40, 0.22);

    /* 布局 */
    --container: 1200px;
    --header-height: 76px;
    --section-space: 104px;

    /* 动效 */
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --duration: 0.35s;
}

/* ==========================================================================
   2. 基础重置
   ========================================================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-body);
    background-color: var(--color-surface);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
ul,
ol {
    margin: 0;
}

ul,
ol {
    padding: 0;
    list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--color-ink);
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.02em;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border: 0;
}

button,
input,
select,
textarea {
    font: inherit;
    color: inherit;
}

button {
    cursor: pointer;
    background: none;
    border: 0;
    padding: 0;
}

:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}

::selection {
    color: #fff;
    background: var(--color-accent);
}

/* ==========================================================================
   3. 通用布局与排版
   ========================================================================== */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: var(--section-space) 0;
}

.section--soft {
    background: var(--color-bg);
}

.section__header {
    max-width: 640px;
    margin-bottom: 56px;
}

.section__header--center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.section__title {
    font-size: clamp(28px, 3.2vw, 40px);
    line-height: 1.2;
}

.section__lead {
    margin-top: 16px;
    font-size: 16px;
    color: var(--color-muted);
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 18px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent);
}

.eyebrow::before {
    content: "";
    width: 22px;
    height: 2px;
    border-radius: 2px;
    background: var(--color-accent);
}

.text-accent {
    color: var(--color-accent);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 滚动进入动画（仅在 JS 可用时启用，避免脚本失败导致内容不可见） */
.js [data-reveal] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.js [data-reveal].is-visible {
    opacity: 1;
    transform: none;
}

/* ==========================================================================
   4. 按钮
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    height: 48px;
    padding: 0 26px;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
    transition: transform var(--duration) var(--ease),
        background-color var(--duration) ease, box-shadow var(--duration) ease,
        border-color var(--duration) ease, color var(--duration) ease;
}

.btn svg {
    width: 18px;
    height: 18px;
    transition: transform var(--duration) var(--ease);
}

.btn:hover svg {
    transform: translateX(3px);
}

.btn--primary {
    color: #fff;
    background: var(--color-accent);
    box-shadow: 0 10px 24px -12px rgba(255, 107, 44, 0.9);
}

.btn--primary:hover {
    background: var(--color-accent-strong);
    transform: translateY(-2px);
    box-shadow: 0 16px 32px -14px rgba(255, 107, 44, 0.95);
}

.btn--ghost {
    color: var(--color-ink);
    background: var(--color-surface);
    border-color: var(--color-line-strong);
}

.btn--ghost:hover {
    border-color: var(--color-ink);
    transform: translateY(-2px);
}

.btn--light {
    color: var(--color-ink);
    background: #fff;
}

.btn--light:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 32px -16px rgba(0, 0, 0, 0.35);
}

.btn--outline-light {
    color: #fff;
    background: transparent;
    border-color: rgba(255, 255, 255, 0.45);
}

.btn--outline-light:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.7);
}

.btn--sm {
    height: 42px;
    padding: 0 20px;
    font-size: 14px;
}

.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-accent);
}

.link-arrow svg {
    width: 16px;
    height: 16px;
    transition: transform var(--duration) var(--ease);
}

.link-arrow:hover svg {
    transform: translateX(4px);
}

/* ==========================================================================
   5. 头部导航
   ========================================================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.82);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
    backdrop-filter: saturate(180%) blur(16px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--duration) ease, box-shadow var(--duration) ease,
        background-color var(--duration) ease;
}

.site-header.is-scrolled {
    border-bottom-color: var(--color-line);
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 1px 0 rgba(16, 24, 40, 0.02);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: 32px;
}

.brand {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.brand img {
    height: 38px;
    width: auto;
}

.nav {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
}

.nav__link {
    position: relative;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    color: var(--color-body);
    transition: color var(--duration) ease, background-color var(--duration) ease;
}

.nav__link:hover {
    color: var(--color-ink);
    background: var(--color-bg);
}

.nav__link[aria-current="page"] {
    color: var(--color-ink);
    font-weight: 600;
}

.nav__link[aria-current="page"]::after {
    content: "";
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 2px;
    height: 2px;
    border-radius: 2px;
    background: var(--color-accent);
}

.site-header__actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.site-header__phone {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-ink);
    font-variant-numeric: tabular-nums;
}

.site-header__phone svg {
    width: 16px;
    height: 16px;
    color: var(--color-accent);
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-line);
}

.nav-toggle span {
    position: relative;
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--color-ink);
    transition: background-color 0.2s ease;
}

.nav-toggle span::before,
.nav-toggle span::after {
    content: "";
    position: absolute;
    left: 0;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--color-ink);
    transition: transform var(--duration) var(--ease);
}

.nav-toggle span::before {
    top: -6px;
}

.nav-toggle span::after {
    top: 6px;
}

.nav-toggle[aria-expanded="true"] span {
    background: transparent;
}

.nav-toggle[aria-expanded="true"] span::before {
    transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span::after {
    transform: translateY(-6px) rotate(-45deg);
}

/* 移动端菜单 */
.mobile-nav {
    position: fixed;
    inset: var(--header-height) 0 0;
    z-index: 99;
    display: none;
    padding: 16px 24px 32px;
    background: rgba(255, 255, 255, 0.98);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    overflow-y: auto;
}

.mobile-nav.is-open {
    display: block;
    animation: menu-in 0.3s var(--ease);
}

.mobile-nav__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 4px;
    font-size: 18px;
    font-weight: 500;
    color: var(--color-ink);
    border-bottom: 1px solid var(--color-line);
}

.mobile-nav__link::after {
    content: "→";
    color: var(--color-muted);
    font-weight: 400;
}

.mobile-nav__foot {
    display: grid;
    gap: 12px;
    margin-top: 28px;
}

@keyframes menu-in {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: none;
    }
}

body.is-locked {
    overflow: hidden;
}

/* ==========================================================================
   6. 首页 Hero
   ========================================================================== */
.hero {
    position: relative;
    padding: 88px 0 96px;
    background: var(--color-surface);
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: -320px;
    right: -220px;
    width: 760px;
    height: 760px;
    border-radius: 50%;
    background: radial-gradient(
        circle,
        rgba(255, 107, 44, 0.16) 0%,
        rgba(255, 107, 44, 0) 68%
    );
    pointer-events: none;
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(
        rgba(16, 24, 40, 0.055) 1px,
        transparent 1px
    );
    background-size: 28px 28px;
    -webkit-mask-image: linear-gradient(
        110deg,
        #000 0%,
        rgba(0, 0, 0, 0.45) 48%,
        transparent 72%
    );
    mask-image: linear-gradient(
        110deg,
        #000 0%,
        rgba(0, 0, 0, 0.45) 48%,
        transparent 72%
    );
    pointer-events: none;
}

.hero__inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
    gap: 72px;
}

.hero__title {
    max-width: 620px;
    font-size: clamp(40px, 4.8vw, 64px);
    font-weight: 600;
    line-height: 1.12;
    letter-spacing: -0.03em;
}

.hero__title em {
    position: relative;
    font-style: normal;
    color: var(--color-accent);
    white-space: nowrap;
}

.hero__lead {
    max-width: 520px;
    margin-top: 24px;
    font-size: 17px;
    line-height: 1.8;
    color: var(--color-muted);
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 36px;
}

.hero__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 28px;
    margin-top: 44px;
    padding-top: 28px;
    border-top: 1px solid var(--color-line);
}

.hero__meta-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.hero__meta-value {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-ink);
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
}

.hero__meta-label {
    font-size: 13px;
    color: var(--color-muted);
}

.hero__media {
    position: relative;
    min-height: 480px;
}

.hero__card {
    position: absolute;
    inset: 24px 0 24px 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    border-radius: var(--radius-xl);
    background: linear-gradient(160deg, #fff8f4 0%, #ffffff 55%, #f7f8fa 100%);
    border: 1px solid rgba(255, 107, 44, 0.12);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.hero__card::before {
    content: "";
    position: absolute;
    inset: auto -20% -35% -20%;
    height: 60%;
    background: radial-gradient(
        ellipse at center,
        rgba(255, 107, 44, 0.14),
        transparent 70%
    );
}

.hero__card img {
    position: relative;
    z-index: 1;
    width: 88%;
    max-width: 440px;
    mix-blend-mode: multiply;
}

.hero__chip {
    position: absolute;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    background: #fff;
    border: 1px solid var(--color-line);
    box-shadow: var(--shadow-md);
    font-size: 13px;
    color: var(--color-body);
}

.hero__chip strong {
    display: block;
    font-size: 15px;
    color: var(--color-ink);
    font-weight: 600;
}

.hero__chip--top {
    top: 0;
    right: 8px;
}

.hero__chip--bottom {
    left: 0;
    bottom: 0;
}

.hero__chip-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--color-accent-soft);
    color: var(--color-accent);
}

.hero__chip-icon svg {
    width: 18px;
    height: 18px;
}

/* ==========================================================================
   7. 数据条
   ========================================================================== */
.stats {
    border-top: 1px solid var(--color-line);
    border-bottom: 1px solid var(--color-line);
    background: var(--color-bg-soft);
}

.stats__inner {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding: 40px 24px;
}

.stat {
    padding-right: 24px;
    border-right: 1px solid var(--color-line);
}

.stat:last-child {
    border-right: 0;
}

.stat__value {
    font-size: 32px;
    font-weight: 600;
    color: var(--color-ink);
    letter-spacing: -0.03em;
    font-variant-numeric: tabular-nums;
    line-height: 1.1;
}

.stat__value span {
    margin-left: 2px;
    font-size: 18px;
    color: var(--color-accent);
}

.stat__label {
    margin-top: 6px;
    font-size: 14px;
    color: var(--color-muted);
}

/* ==========================================================================
   8. 产品
   ========================================================================== */
.section__head-row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 48px;
}

.section__head-row .section__header {
    margin-bottom: 0;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

.product-card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-height: 100%;
    padding: 32px;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    transition: transform var(--duration) var(--ease),
        box-shadow var(--duration) var(--ease), border-color var(--duration) ease;
}

.product-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent-soft-2);
    box-shadow: var(--shadow-md);
}

.product-card__media {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 220px;
    margin-bottom: 28px;
    border-radius: var(--radius-md);
    background: linear-gradient(160deg, #fff6f1 0%, #fbfbfc 70%);
    overflow: hidden;
}

.product-card__media img {
    width: 62%;
    max-width: 220px;
    mix-blend-mode: multiply;
    transition: transform 0.6s var(--ease);
}

.product-card:hover .product-card__media img {
    transform: scale(1.05);
}

.product-card__body {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.product-card__title {
    font-size: 21px;
    letter-spacing: -0.01em;
}

.product-card__text {
    margin-top: 12px;
    font-size: 14px;
    line-height: 1.8;
    color: var(--color-muted);

    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card__foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: 24px;
}

.product-card__foot .link-arrow {
    font-size: 14px;
}

.product-card__tag {
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    background: var(--color-accent-soft);
    font-size: 12px;
    font-weight: 600;
    color: var(--color-accent);
}

/* ==========================================================================
   9. 特性（深色区块）
   ========================================================================== */
.features {
    position: relative;
    overflow: hidden;
    color: rgba(255, 255, 255, 0.72);
    background: var(--color-dark);
}

.features::before {
    content: "";
    position: absolute;
    top: -240px;
    left: 50%;
    width: 900px;
    height: 500px;
    transform: translateX(-50%);
    background: radial-gradient(
        ellipse at center,
        rgba(255, 107, 44, 0.22),
        transparent 68%
    );
    pointer-events: none;
}

.features .container {
    position: relative;
    z-index: 1;
}

.features .section__title {
    color: #fff;
}

.features .section__lead {
    color: rgba(255, 255, 255, 0.6);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature {
    padding: 32px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.035);
    transition: background-color var(--duration) ease,
        border-color var(--duration) ease, transform var(--duration) var(--ease);
}

.feature:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.18);
    transform: translateY(-3px);
}

.feature__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin-bottom: 24px;
    border-radius: 14px;
    background: rgba(255, 107, 44, 0.14);
    color: #ff8a55;
}

.feature__icon svg {
    width: 24px;
    height: 24px;
}

.feature__title {
    font-size: 18px;
    color: #fff;
}

.feature__text {
    margin-top: 10px;
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
}

/* ==========================================================================
   10. 新闻
   ========================================================================== */
.news-grid {
    display: grid;
    grid-template-columns: 1.35fr 1fr;
    gap: 24px;
    align-items: stretch;
}

.news-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    transition: transform var(--duration) var(--ease),
        box-shadow var(--duration) var(--ease);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.news-card__media {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--color-bg);
}

.news-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s var(--ease);
}

.news-card:hover .news-card__media img {
    transform: scale(1.04);
}

.news-card__body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 24px 28px 28px;
}

.news-card__meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 13px;
    color: var(--color-muted);
}

.news-card__tag {
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    background: var(--color-accent-soft);
    color: var(--color-accent);
    font-size: 12px;
    font-weight: 600;
}

.news-card__title {
    font-size: 18px;
    line-height: 1.5;
    letter-spacing: 0;

    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--duration) ease;
}

.news-card:hover .news-card__title {
    color: var(--color-accent);
}

.news-card__text {
    margin-top: 10px;
    font-size: 14px;
    line-height: 1.75;
    color: var(--color-muted);

    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card--feature .news-card__media {
    aspect-ratio: 16 / 9;
}

.news-card--feature .news-card__title {
    font-size: 24px;
}

.news-card--feature .news-card__body {
    padding: 28px 32px 32px;
}

.news-side {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 8px;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
}

.news-side__item {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    border-radius: var(--radius-md);
    transition: background-color var(--duration) ease;
}

.news-side__item:hover {
    background: var(--color-bg);
}

.news-side__item + .news-side__item {
    border-top: 1px solid var(--color-line);
}

.news-side__title {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-ink);
    line-height: 1.55;

    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-side__arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid var(--color-line);
    color: var(--color-muted);
    transition: all var(--duration) ease;
}

.news-side__item:hover .news-side__arrow {
    color: #fff;
    background: var(--color-accent);
    border-color: var(--color-accent);
}

.news-side__arrow svg {
    width: 14px;
    height: 14px;
}

/* 新闻列表页 */
.news-list-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

/* ==========================================================================
   11. CTA
   ========================================================================== */
.cta {
    padding: 0 0 var(--section-space);
}

.cta__inner {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    padding: 64px;
    border-radius: var(--radius-xl);
    background: linear-gradient(120deg, #ff7a3d 0%, #ff6b2c 48%, #f0531a 100%);
    overflow: hidden;
}

.cta__inner::before {
    content: "";
    position: absolute;
    top: -60%;
    right: -10%;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.22);
    box-shadow: 0 0 0 60px rgba(255, 255, 255, 0.06),
        0 0 0 120px rgba(255, 255, 255, 0.04);
}

.cta__content {
    position: relative;
    z-index: 1;
    max-width: 620px;
}

.cta__title {
    font-size: clamp(26px, 3vw, 38px);
    color: #fff;
    line-height: 1.25;
}

.cta__text {
    margin-top: 12px;
    color: rgba(255, 255, 255, 0.82);
    font-size: 16px;
}

.cta__actions {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    flex-shrink: 0;
}

.cta .btn--light:hover {
    box-shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.45);
}

/* ==========================================================================
   12. 页脚
   ========================================================================== */
.site-footer {
    padding: 72px 0 0;
    color: rgba(255, 255, 255, 0.6);
    background: var(--color-dark);
}

.footer__grid {
    display: grid;
    grid-template-columns: 1.4fr 0.7fr 0.9fr 0.8fr;
    gap: 48px;
    padding-bottom: 56px;
}

.footer__brand img {
    height: 36px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.95;
}

.footer__about {
    max-width: 300px;
    margin-top: 20px;
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.55);
}

.footer__title {
    margin-bottom: 18px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
}

.footer__links {
    display: grid;
    gap: 12px;
}

.footer__link {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.68);
    transition: color var(--duration) ease;
}

.footer__link:hover {
    color: #fff;
}

.footer__contact {
    display: grid;
    gap: 10px;
    font-size: 14px;
    line-height: 1.7;
}

.footer__contact strong {
    color: #fff;
    font-weight: 600;
}

.footer__phone {
    font-size: 22px;
    font-weight: 600;
    color: #fff;
    letter-spacing: -0.01em;
    font-variant-numeric: tabular-nums;
}

.footer__qr {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer__qr img {
    width: 108px;
    height: 108px;
    padding: 6px;
    border-radius: var(--radius-md);
    background: #fff;
    object-fit: contain;
}

.footer__qr span {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.footer__bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 22px 0 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 13px;
    color: rgba(255, 255, 255, 0.42);
}

.footer__bottom a {
    color: inherit;
    transition: color var(--duration) ease;
}

.footer__bottom a:hover {
    color: rgba(255, 255, 255, 0.8);
}

.footer__legal {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

/* ==========================================================================
   13. 内页通用
   ========================================================================== */
.page-hero {
    position: relative;
    padding: 72px 0 64px;
    background: linear-gradient(180deg, #fbfbfc 0%, #ffffff 100%);
    border-bottom: 1px solid var(--color-line);
    overflow: hidden;
}

.page-hero::after {
    content: "";
    position: absolute;
    top: -180px;
    right: -120px;
    width: 480px;
    height: 480px;
    border-radius: 50%;
    background: radial-gradient(
        circle,
        rgba(255, 107, 44, 0.12),
        transparent 66%
    );
    pointer-events: none;
}

.page-hero__inner {
    position: relative;
    z-index: 1;
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 22px;
    font-size: 13px;
    color: var(--color-muted);
}

.breadcrumb a {
    color: var(--color-muted);
    transition: color var(--duration) ease;
}

.breadcrumb a:hover {
    color: var(--color-accent);
}

.breadcrumb span {
    color: var(--color-line-strong);
}

.page-hero__title {
    font-size: clamp(32px, 4vw, 52px);
    line-height: 1.18;
}

.page-hero__lead {
    max-width: 620px;
    margin-top: 16px;
    font-size: 16px;
    color: var(--color-muted);
}

/* ==========================================================================
   14. 文章排版
   ========================================================================== */
.article-layout {
    padding: 72px 0 96px;
}

.article-shell {
    max-width: 820px;
    margin: 0 auto;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    margin-bottom: 36px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--color-line);
    font-size: 14px;
    color: var(--color-muted);
}

.article-meta__tag {
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    background: var(--color-accent-soft);
    color: var(--color-accent);
    font-size: 12px;
    font-weight: 600;
}

.prose {
    font-size: 16px;
    line-height: 1.95;
    color: var(--color-body);
}

.prose > * + * {
    margin-top: 20px;
}

.prose p {
    margin: 0;
}

.prose h2,
.prose h3 {
    margin-top: 44px;
    margin-bottom: 4px;
    font-size: 22px;
    line-height: 1.4;
}

.prose h3 {
    font-size: 18px;
}

.prose strong,
.prose b {
    color: var(--color-ink);
    font-weight: 600;
}

.prose ul,
.prose ol {
    padding-left: 22px;
    list-style: disc;
}

.prose ol {
    list-style: decimal;
}

.prose li + li {
    margin-top: 8px;
}

.prose img {
    border-radius: var(--radius-md);
    margin: 28px 0;
}

.prose blockquote {
    margin: 28px 0;
    padding: 18px 24px;
    border-left: 3px solid var(--color-accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    background: var(--color-bg);
    color: var(--color-muted);
}

.prose a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* 兼容旧正文里残留的行内样式 */
.prose span {
    font-size: inherit !important;
    line-height: inherit !important;
    font-family: inherit !important;
    color: inherit !important;
    background: none !important;
    --tw-ring-offset-shadow: 0 0 #0000 !important;
    --tw-ring-shadow: 0 0 #0000 !important;
    --tw-shadow: 0 0 #0000 !important;
}

.prose p[style],
.prose div[style],
.prose span[style] {
    text-indent: 0 !important;
}

.article-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 56px;
    padding-top: 28px;
    border-top: 1px solid var(--color-line);
}

.article-nav a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-pill);
    font-size: 14px;
    color: var(--color-body);
    transition: all var(--duration) ease;
}

.article-nav a:hover {
    border-color: var(--color-ink);
    color: var(--color-ink);
}

/* 新闻列表页 */
.news-page {
    padding: 72px 0 104px;
}

.news-page__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

/* ==========================================================================
   15. 产品详情
   ========================================================================== */
.product-detail {
    padding: 72px 0 96px;
}

.product-detail__grid {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 72px;
    align-items: start;
}

.product-detail__media {
    position: sticky;
    top: calc(var(--header-height) + 32px);
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 1 / 1;
    padding: 40px;
    border-radius: var(--radius-xl);
    background: linear-gradient(160deg, #fff6f1 0%, #fbfbfc 70%);
    border: 1px solid var(--color-line);
}

.product-detail__media img {
    width: 82%;
    max-width: 420px;
    mix-blend-mode: multiply;
}

.product-detail__title {
    font-size: clamp(30px, 3.4vw, 42px);
}

.product-detail__lead {
    margin-top: 16px;
    font-size: 17px;
    line-height: 1.8;
    color: var(--color-muted);
}

.product-detail__body {
    margin-top: 36px;
    padding-top: 32px;
    border-top: 1px solid var(--color-line);
}

.product-detail__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 36px;
}

/* ==========================================================================
   16. 联系我们
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 56px;
}

.contact-card {
    padding: 28px;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    transition: transform var(--duration) var(--ease),
        box-shadow var(--duration) var(--ease);
}

.contact-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
}

.contact-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    margin-bottom: 18px;
    border-radius: 12px;
    background: var(--color-accent-soft);
    color: var(--color-accent);
}

.contact-card__icon svg {
    width: 20px;
    height: 20px;
}

.contact-card__label {
    font-size: 13px;
    color: var(--color-muted);
}

.contact-card__value {
    margin-top: 4px;
    font-size: 17px;
    font-weight: 600;
    color: var(--color-ink);
    word-break: break-all;
}

.contact-card__value a:hover {
    color: var(--color-accent);
}

.contact-map {
    overflow: hidden;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
}

.contact-map__head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 24px 28px;
    border-bottom: 1px solid var(--color-line);
}

.contact-map__company {
    font-size: 18px;
    color: var(--color-ink);
}

.contact-map__address {
    font-size: 14px;
    color: var(--color-muted);
}

.contact-map__canvas {
    height: 420px;
    background: var(--color-bg);
}

.contact-map__canvas #MapContainer {
    width: 100%;
    height: 100%;
}

/* ==========================================================================
   17. 浮动组件
   ========================================================================== */
.floating-contact {
    position: fixed;
    right: 20px;
    bottom: 88px;
    z-index: 90;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.floating-contact__btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #fff;
    color: var(--color-ink);
    border: 1px solid var(--color-line);
    box-shadow: var(--shadow-md);
    transition: all var(--duration) ease;
}

.floating-contact__btn:hover {
    color: #fff;
    background: var(--color-accent);
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.floating-contact__btn svg {
    width: 20px;
    height: 20px;
}

.floating-contact__btn--primary {
    color: #fff;
    background: var(--color-accent);
    border-color: var(--color-accent);
}

.floating-contact__btn--primary:hover {
    background: var(--color-accent-strong);
}

.back-to-top {
    position: fixed;
    right: 20px;
    bottom: 28px;
    z-index: 90;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #fff;
    color: var(--color-ink);
    border: 1px solid var(--color-line);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all var(--duration) ease;
}

.back-to-top.is-active {
    opacity: 1;
    visibility: visible;
    transform: none;
}

.back-to-top:hover {
    color: #fff;
    background: var(--color-ink);
    border-color: var(--color-ink);
}

.back-to-top svg {
    width: 18px;
    height: 18px;
}

/* 浮动联系按钮在移动端隐藏，底部工具条保留 */
.mobile-toolbar {
    display: none;
}

/* ==========================================================================
   18. 响应式
   ========================================================================== */
@media (max-width: 1080px) {
    :root {
        --section-space: 80px;
    }

    .hero__inner {
        gap: 48px;
    }

    .footer__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .footer__qr {
        display: none;
    }
}

@media (max-width: 960px) {
    .nav,
    .site-header__actions .site-header__phone {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding: 64px 0 72px;
    }

    .hero__inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero__media {
        min-height: 420px;
    }

    .hero__card {
        inset: 16px 0;
        padding: 28px;
    }

    .hero__chip--top {
        right: 0;
    }

    .stats__inner {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px 24px;
    }

    .stat:nth-child(2) {
        border-right: 0;
    }

    .stat:nth-child(n + 3) {
        padding-top: 8px;
    }

    .product-grid,
    .news-list-grid,
    .news-page__grid,
    .feature-grid,
    .contact-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .news-grid {
        grid-template-columns: 1fr;
    }

    .cta__inner {
        flex-direction: column;
        align-items: flex-start;
        padding: 48px 40px;
    }

    .product-detail__grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .product-detail__media {
        position: static;
        max-width: 520px;
    }

    .footer__grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 640px) {
    :root {
        --section-space: 64px;
        --header-height: 68px;
    }

    .container {
        padding: 0 20px;
    }

    .brand img {
        height: 32px;
    }

    .site-header__actions .btn {
        display: none;
    }

    .hero {
        padding: 44px 0 56px;
    }

    .hero__title {
        font-size: clamp(34px, 9vw, 44px);
    }

    .hero__lead {
        margin-top: 18px;
        font-size: 16px;
    }

    .hero__actions {
        margin-top: 28px;
    }

    .hero__actions .btn {
        flex: 1;
        min-width: 150px;
    }

    .hero__meta {
        gap: 20px;
        margin-top: 32px;
        padding-top: 22px;
    }

    .hero__meta-value {
        font-size: 20px;
    }

    .hero__media {
        min-height: 340px;
    }

    .hero__card {
        padding: 20px;
        border-radius: var(--radius-lg);
    }

    .hero__chip {
        padding: 10px 14px;
        transform: scale(0.92);
        transform-origin: right top;
    }

    .hero__chip--bottom {
        transform-origin: left bottom;
    }

    .stats__inner {
        grid-template-columns: repeat(2, 1fr);
        padding: 28px 20px;
    }

    .stat {
        padding-right: 16px;
    }

    .stat__value {
        font-size: 24px;
    }

    .section__head-row {
        flex-direction: column;
        align-items: flex-start;
        margin-bottom: 32px;
    }

    .section__header {
        margin-bottom: 36px;
    }

    .product-grid,
    .news-list-grid,
    .news-page__grid,
    .feature-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .product-card {
        padding: 24px;
    }

    .product-card__media {
        height: 180px;
        margin-bottom: 22px;
    }

    .news-card--feature .news-card__title {
        font-size: 20px;
    }

    .cta {
        padding-bottom: var(--section-space);
    }

    .cta__inner {
        padding: 36px 24px;
        border-radius: var(--radius-lg);
    }

    .cta__actions {
        width: 100%;
    }

    .cta__actions .btn {
        flex: 1;
    }

    .footer__grid {
        grid-template-columns: 1fr;
        gap: 32px;
        padding-bottom: 40px;
    }

    .footer__bottom {
        flex-direction: column;
        align-items: flex-start;
    }

    .page-hero {
        padding: 48px 0 44px;
    }

    .article-layout,
    .product-detail,
    .news-page {
        padding: 48px 0 64px;
    }

    .prose {
        font-size: 15.5px;
    }

    .contact-map__canvas {
        height: 320px;
    }

    .floating-contact {
        display: flex;
        right: 16px;
        bottom: 76px;
    }

    .back-to-top {
        bottom: 132px;
        width: 42px;
        height: 42px;
    }

    .mobile-toolbar {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 95;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
        background: rgba(255, 255, 255, 0.96);
        -webkit-backdrop-filter: blur(16px);
        backdrop-filter: blur(16px);
        border-top: 1px solid var(--color-line);
    }

    .mobile-toolbar__item {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 3px;
        padding: 6px 0;
        border-radius: var(--radius-sm);
        font-size: 11px;
        color: var(--color-muted);
    }

    .mobile-toolbar__item svg {
        width: 20px;
        height: 20px;
    }

    .mobile-toolbar__item.is-active {
        color: var(--color-accent);
    }

    body {
        padding-bottom: 64px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .js [data-reveal] {
        opacity: 1;
        transform: none;
    }
}

/* ==========================================================================
   19. 关于我们
   ========================================================================== */
.about-intro {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 72px;
    align-items: center;
}

.about-intro__media {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.about-intro__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 4 / 3;
}

.about-intro__stat {
    position: absolute;
    left: 24px;
    bottom: 24px;
    padding: 18px 22px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.94);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    box-shadow: var(--shadow-sm);
}

.about-intro__stat strong {
    display: block;
    font-size: 26px;
    color: var(--color-ink);
    letter-spacing: -0.02em;
}

.about-intro__stat span {
    font-size: 13px;
    color: var(--color-muted);
}

.about-intro__text .section__title + p {
    margin-top: 24px;
}

.about-intro__text p + p {
    margin-top: 18px;
}

.about-intro__text {
    font-size: 16px;
    line-height: 1.9;
    color: var(--color-body);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}

.value-card {
    padding: 28px;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    transition: transform var(--duration) var(--ease),
        box-shadow var(--duration) var(--ease);
}

.value-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
}

.value-card__index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    margin-bottom: 20px;
    border-radius: 50%;
    background: var(--color-accent-soft);
    color: var(--color-accent);
    font-size: 13px;
    font-weight: 600;
}

.value-card__title {
    font-size: 17px;
}

.value-card__text {
    margin-top: 8px;
    font-size: 14px;
    line-height: 1.75;
    color: var(--color-muted);
}

/* 时间轴 */
.timeline {
    position: relative;
    display: grid;
    gap: 0;
    max-width: 880px;
    margin: 0 auto;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 180px;
    top: 8px;
    bottom: 8px;
    width: 1px;
    background: var(--color-line);
}

.timeline__item {
    position: relative;
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 40px;
    padding: 22px 0;
}

.timeline__date {
    padding-top: 1px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-muted);
    font-variant-numeric: tabular-nums;
    text-align: right;
}

.timeline__body {
    position: relative;
    padding-left: 40px;
}

.timeline__body::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    transform: translateX(-50%);
    border-radius: 50%;
    background: var(--color-surface);
    border: 3px solid var(--color-accent);
    box-sizing: content-box;
}

.timeline__title {
    font-size: 18px;
    line-height: 1.4;
}

.timeline__text {
    margin-top: 6px;
    font-size: 14px;
    line-height: 1.75;
    color: var(--color-muted);
}

/* 结束语区块 */
.quote {
    max-width: 820px;
    margin: 0 auto;
    text-align: center;
}

.quote__text {
    font-size: clamp(22px, 2.6vw, 30px);
    line-height: 1.6;
    color: var(--color-ink);
    letter-spacing: -0.01em;
}

.quote__mark {
    display: block;
    margin: 0 auto 20px;
    width: 36px;
    height: 28px;
    color: var(--color-accent-soft-2);
}

/* 产品页补充 */
.product-card__text--full {
    -webkit-line-clamp: unset;
    display: block;
}

.product-note {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 56px;
    padding-top: 40px;
    border-top: 1px solid var(--color-line);
}

.product-note__item strong {
    display: block;
    margin-bottom: 6px;
    font-size: 16px;
    color: var(--color-ink);
}

.product-note__item span {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.7;
}

@media (max-width: 960px) {
    .about-intro {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .values-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .product-note {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (max-width: 640px) {
    .values-grid {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 8px;
    }

    .timeline__item {
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 0 0 32px;
    }

    .timeline__date {
        padding-left: 32px;
        text-align: left;
    }

    .timeline__body {
        padding-left: 32px;
    }

    .timeline__body::before {
        left: 8px;
    }
}

/* ==========================================================================
   20. 产品矩阵（五款产品 / 图标卡片）
   ========================================================================== */
.icon-sprite {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

.product-grid--five {
    grid-template-columns: repeat(6, minmax(0, 1fr));
}

.product-grid--five > * {
    grid-column: span 2;
}

.product-grid--five > *:nth-child(4),
.product-grid--five > *:nth-child(5) {
    grid-column: span 3;
}

.product-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 104px;
    height: 104px;
    border-radius: 26px;
    background: linear-gradient(150deg, #ffffff 0%, #fff3ec 100%);
    color: var(--color-accent);
    box-shadow: inset 0 0 0 1px rgba(255, 107, 44, 0.14),
        0 24px 48px -28px rgba(255, 107, 44, 0.65);
}

.product-icon svg {
    width: 48px;
    height: 48px;
}

.product-card__media--icon {
    background: linear-gradient(160deg, #fff7f2 0%, #fbfbfc 72%);
}

.product-card__media--icon .product-icon {
    margin-bottom: 0;
    transition: transform 0.6s var(--ease);
}

.product-card:hover .product-card__media--icon .product-icon {
    transform: translateY(-4px) scale(1.04);
}

.product-card__points {
    display: grid;
    gap: 8px;
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--color-line);
}

.product-card__points li {
    position: relative;
    padding-left: 18px;
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-body);
}

.product-card__points li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.62em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent-soft-2);
}

.product-detail__media--icon {
    position: sticky;
    top: calc(var(--header-height) + 32px);
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 1 / 1;
    border-radius: var(--radius-xl);
    background: linear-gradient(160deg, #fff7f2 0%, #fbfbfc 72%);
    border: 1px solid var(--color-line);
}

.product-detail__media--icon .product-icon {
    width: 220px;
    height: 220px;
    border-radius: 52px;
    box-shadow: inset 0 0 0 1px rgba(255, 107, 44, 0.14),
        0 40px 80px -48px rgba(255, 107, 44, 0.7);
}

.product-detail__media--icon .product-icon svg {
    width: 100px;
    height: 100px;
}

@media (max-width: 960px) {
    .product-grid--five {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .product-grid--five > *,
    .product-grid--five > *:nth-child(4) {
        grid-column: span 1;
    }

    .product-grid--five > *:nth-child(5) {
        grid-column: span 2;
    }

    .product-detail__media--icon {
        position: static;
        max-width: 520px;
    }

    .product-detail__media--icon .product-icon {
        width: 160px;
        height: 160px;
        border-radius: 40px;
    }

    .product-detail__media--icon .product-icon svg {
        width: 76px;
        height: 76px;
    }
}

@media (max-width: 640px) {
    .product-grid--five {
        grid-template-columns: 1fr;
    }

    .product-grid--five > *,
    .product-grid--five > *:nth-child(4),
    .product-grid--five > *:nth-child(5) {
        grid-column: span 1;
    }

    .product-icon {
        width: 84px;
        height: 84px;
        border-radius: 22px;
    }

    .product-icon svg {
        width: 40px;
        height: 40px;
    }
}

/* Hero 产品矩阵 */
.hero__card--matrix {
    align-items: stretch;
}

.hero-matrix {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 12px;
    width: 100%;
}

.hero-matrix__item {
    grid-column: span 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 20px 8px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(255, 107, 44, 0.12);
    box-shadow: 0 16px 32px -26px rgba(16, 24, 40, 0.35);
    font-size: 13px;
    font-weight: 600;
    color: var(--color-ink);
    text-align: center;
    line-height: 1.4;
}

.hero-matrix__item:nth-child(4),
.hero-matrix__item:nth-child(5) {
    grid-column: span 3;
    flex-direction: row;
    justify-content: flex-start;
    gap: 14px;
    padding: 16px 20px;
    text-align: left;
    white-space: nowrap;
}

.hero-matrix__item .product-icon {
    width: 52px;
    height: 52px;
    border-radius: 15px;
    box-shadow: inset 0 0 0 1px rgba(255, 107, 44, 0.1);
    flex-shrink: 0;
}

.hero-matrix__item .product-icon svg {
    width: 26px;
    height: 26px;
}

.hero-matrix__item:nth-child(4) .product-icon,
.hero-matrix__item:nth-child(5) .product-icon {
    width: 44px;
    height: 44px;
    border-radius: 13px;
}

.hero-matrix__item:nth-child(4) .product-icon svg,
.hero-matrix__item:nth-child(5) .product-icon svg {
    width: 22px;
    height: 22px;
}

@media (max-width: 640px) {
    .hero-matrix {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }

    .hero-matrix__item,
    .hero-matrix__item:nth-child(4),
    .hero-matrix__item:nth-child(5) {
        grid-column: span 1;
        flex-direction: column;
        justify-content: center;
        gap: 8px;
        padding: 14px 8px;
        text-align: center;
        font-size: 12px;
    }

    .hero-matrix__item:last-child {
        grid-column: span 2;
        flex-direction: row;
        justify-content: center;
    }
}

/* 移动端 Hero 产品矩阵：取消绝对定位，避免内容被裁切 */
@media (max-width: 640px) {
    .hero__media {
        min-height: 0;
    }

    .hero__card,
    .hero__card--matrix {
        position: relative;
        inset: auto;
        padding: 18px;
    }

    .hero__media .hero__chip {
        display: none;
    }
}

/* ==========================================================================
   21. AI 接口
   ========================================================================== */
.api-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.api-card {
    display: flex;
    gap: 20px;
    padding: 28px;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    transition: transform var(--duration) var(--ease),
        box-shadow var(--duration) var(--ease), border-color var(--duration) ease;
}

.api-card:hover {
    transform: translateY(-3px);
    border-color: var(--color-accent-soft-2);
    box-shadow: var(--shadow-md);
}

.api-card__icon {
    flex-shrink: 0;
}

.api-card__icon .product-icon {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    box-shadow: inset 0 0 0 1px rgba(255, 107, 44, 0.1);
}

.api-card__icon .product-icon svg {
    width: 30px;
    height: 30px;
}

.api-card__body {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.api-card__head {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.api-card__title {
    font-size: 18px;
    letter-spacing: -0.01em;
}

.api-card__badge {
    padding: 3px 9px;
    border-radius: var(--radius-pill);
    background: var(--color-bg);
    border: 1px solid var(--color-line);
    font-size: 11px;
    font-weight: 600;
    color: var(--color-muted);
    letter-spacing: 0.04em;
}

.api-card__text {
    margin-top: 8px;
    font-size: 14px;
    line-height: 1.75;
    color: var(--color-muted);
}

.api-card__link {
    margin-top: 14px;
    font-size: 14px;
}

.api-note {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-top: 32px;
    padding: 18px 22px;
    border-radius: var(--radius-md);
    background: var(--color-accent-soft);
    font-size: 14px;
    color: var(--color-body);
}

.api-note svg {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    margin-top: 2px;
    color: var(--color-accent);
}

/* 详情页里的接口信息 */
.api-meta {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-top: 28px;
    padding-top: 28px;
    border-top: 1px solid var(--color-line);
}

.api-meta__item {
    padding: 16px;
    border-radius: var(--radius-md);
    background: var(--color-bg);
}

.api-meta__label {
    font-size: 12px;
    color: var(--color-muted);
}

.api-meta__value {
    margin-top: 4px;
    font-size: 15px;
    font-weight: 600;
    color: var(--color-ink);
}

@media (max-width: 960px) {
    .api-grid {
        grid-template-columns: 1fr;
    }

    .api-meta {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .api-card {
        padding: 22px;
        gap: 16px;
    }

    .api-card__icon .product-icon {
        width: 54px;
        height: 54px;
        border-radius: 15px;
    }

    .api-card__icon .product-icon svg {
        width: 26px;
        height: 26px;
    }
}

/* ==========================================================================
   22. 企业微信二维码弹窗
   ========================================================================== */
.wechat-modal {
    position: fixed;
    inset: 0;
    z-index: 300;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.wechat-modal.is-open {
    display: flex;
}

.wechat-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(16, 24, 40, 0.55);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
}

.wechat-modal__dialog {
    position: relative;
    z-index: 1;
    width: min(360px, 100%);
    padding: 32px 28px 28px;
    border-radius: var(--radius-xl);
    background: var(--color-surface);
    text-align: center;
    box-shadow: var(--shadow-lg);
    animation: wechat-modal-in 0.25s var(--ease);
}

.wechat-modal__close {
    position: absolute;
    top: 14px;
    right: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-bg);
    color: var(--color-muted);
    transition: background-color var(--duration) ease, color var(--duration) ease;
}

.wechat-modal__close:hover {
    color: var(--color-ink);
    background: var(--color-line);
}

.wechat-modal__close svg {
    width: 16px;
    height: 16px;
}

.wechat-modal__title {
    font-size: 20px;
}

.wechat-modal__text {
    margin-top: 6px;
    font-size: 14px;
    color: var(--color-muted);
}

.wechat-modal__qr {
    width: 208px;
    margin: 22px auto 0;
    padding: 8px;
    border: 1px solid var(--color-line);
    border-radius: 16px;
    background: #fff;
}

.wechat-modal__qr img {
    width: 100%;
    height: auto;
}

.wechat-modal__hint {
    margin-top: 12px;
    font-size: 13px;
    color: var(--color-muted);
}

@keyframes wechat-modal-in {
    from {
        opacity: 0;
        transform: translateY(10px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: none;
    }
}

/* 关于我们页的联系区块 */
.about-contact {
    max-width: 640px;
    margin: 0 auto;
    text-align: center;
}

.about-contact .btn {
    margin-top: 28px;
}