* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}

html, body {
    height: 100%;
    overflow: hidden;
    scroll-behavior: smooth;
}

.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 0 40px;
    z-index: 999;
    background: transparent;
}

.logo {
    display: flex;
    align-items: center;
    margin-right: 60px;
    text-decoration: none;
    cursor: pointer;
}

.logo img {
    width: 98px;
    height: auto;
    object-fit: contain;
    filter: brightness(0);
    opacity: 0.78;
}

.nav a {
    color: #666;
    text-decoration: none;
    margin: 0 24px;
    font-size: 15px;
    opacity: 0.9;
    transition: all 0.3s;
}

.nav a.active {
    color: #333;
    font-weight: bold;
    padding-bottom: 4px;
    opacity: 1;
}

.nav a:hover {
    color: #333;
    opacity: 1;
}

.nav a:focus-visible,
.download-btn:focus-visible,
.footer-download-btn:focus-visible,
.news-link:focus-visible,
.help-section a:focus-visible,
.footer-legal a:focus-visible {
    outline: 3px solid #3a8eff;
    outline-offset: 4px;
}

.fullpage {
    height: 100%;
    overflow-y: scroll;
    scroll-snap-type: y proximity;
    scroll-snap-stop: always;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    will-change: scroll-position;
}

.fullpage::-webkit-scrollbar {
    display: none;
}

.section {
    min-height: 100vh;
    height: auto;
    scroll-snap-align: start;
    scroll-snap-stop: always;
    position: relative;
    display: flex;
    align-items: center;
    padding: 0 80px;
    overflow: hidden;
    background: linear-gradient(135deg, #f0f8ff 0%, #f8f0ff 100%);
}

.section1 {
    color: white;
    justify-content: center;
    text-align: center;
    background: rgba(255, 255, 255, 0.84);
    backdrop-filter: blur(10px);
    flex-direction: column;
    gap: 40px;
}

.hero-copy {
    position: relative;
    z-index: 1;
    max-width: 760px;
}

.hero-copy h1 {
    font-size: clamp(36px, 5vw, 64px);
    line-height: 1.15;
    letter-spacing: 4px;
    margin-bottom: 12px;
}

.hero-copy p {
    font-size: clamp(22px, 2.5vw, 34px);
    font-weight: 600;
    margin-bottom: 12px;
}

.hero-copy span {
    display: block;
    font-size: 17px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.92);
}

.bg-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.2);
    z-index: -1;
}

.main-title-img {
    max-width: 480px;
    width: 90%;
    height: auto;
    object-fit: contain;
    position: relative;
    z-index: 1;
}

.about-section,
.help-section {
    background: linear-gradient(135deg, #f8fbff 0%, #f8f0ff 100%);
}

.about-inner,
.help-inner {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.about-lead {
    max-width: 850px;
    color: #555;
    font-size: 19px;
    line-height: 1.9;
    margin-bottom: 42px;
}

.about-points {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    list-style: none;
}

.about-points li {
    min-height: 170px;
    padding: 30px;
    border: 1px solid rgba(58, 142, 255, 0.14);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.72);
    box-shadow: 0 18px 50px rgba(44, 88, 150, 0.08);
}

.about-points strong,
.about-points span {
    display: block;
}

.about-points strong {
    color: #222;
    font-size: 21px;
    margin-bottom: 14px;
}

.about-points span {
    color: #666;
    line-height: 1.8;
}

.download-btns {
    display: flex;
    gap: 20px;
    position: relative;
    z-index: 1;
    justify-content: center;
    flex-wrap: wrap;
}

.download-btn {
    padding: 10px 26px;
    border: 1px solid #ffffff;
    border-radius: 50px;
    color: #ffffff;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(6px);
}

.download-btn:hover {
    background: rgba(255,255,255,0.2);
    border-color: #ffffff;
}

.down-arrow-group {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    z-index: 1;
}

.down-arrow {
    width: 22px;
    height: 22px;
    border-right: 2px solid #fff;
    border-bottom: 2px solid #fff;
    transform: rotate(45deg);
    animation: bounce 2s infinite;
}

.down-arrow:nth-child(2) {
    animation-delay: 0.2s;
}

@keyframes bounce {
    0%, 100% { transform: rotate(45deg) translateY(0); }
    50% { transform: rotate(45deg) translateY(8px); }
}

.section-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.text-wrap {
    flex: 1;
    max-width: 600px;
    position: relative;
}

.en-bg-title {
    position: absolute;
    top: -20px;
    left: 0;
    font-size: 72px;
    font-weight: 900;
    color: rgba(58, 142, 255, 0.08);
    z-index: 0;
    letter-spacing: 2px;
    white-space: nowrap;
}

.main-title {
    font-size: 68px;
    font-weight: 900;
    color: #111;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
    letter-spacing: 4px;
}

.sub-title {
    font-size: 20px;
    color: #3a8eff;
    margin-bottom: 24px;
    font-weight: 500;
}

.desc-text {
    font-size: 17px;
    color: #666;
    line-height: 1.8;
}

.media-wrap {
    flex-shrink: 0;
    position: relative;
}

.section2 .hand-phone-img,
.section3 .hand-phone-img,
.section4 .hand-phone-img,
.section5 .hand-phone-img,
.section6 .hand-phone-img {
    width: 580px;
    height: auto;
    object-fit: contain;
    position: relative;
    z-index: 2;
}

.decor-top-right {
    position: absolute;
    top: 60px;
    right: 120px;
    width: 120px;
    height: auto;
    z-index: 3;
}

.decor-bottom-left {
    position: absolute;
    bottom: 80px;
    left: 40px;
    width: 220px;
    height: auto;
    opacity: 0.15;
    z-index: 1;
}

.section2 .section-inner { flex-direction: row-reverse; }
.section2 .decor-icon {
    position: absolute;
    top: 120px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 80px;
    z-index: 1;
}

.section3 .section-inner { flex-direction: row; }
.section4 .section-inner { flex-direction: row-reverse; }
.section5 .section-inner { flex-direction: row; }
.section6 .section-inner { flex-direction: row-reverse; }

.faq-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 28px;
}

.faq-list details {
    padding: 22px 24px;
    border: 1px solid rgba(58, 142, 255, 0.15);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.78);
}

.faq-list summary {
    color: #222;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
}

.faq-list p {
    color: #666;
    line-height: 1.8;
    margin-top: 14px;
}

.help-more {
    margin-top: 28px;
    text-align: right;
}

.help-more a {
    color: #2b7de0;
    text-decoration: none;
    font-weight: 600;
}

.site-footer {
    background-color: #333333;
    color: #ffffff;
    padding: 40px 80px;
    font-size: 14px;
    display: block;
    scroll-snap-align: start;
    scroll-snap-stop: always;
}

.footer-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
}

.footer-left {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.footer-logo-img {
    width: 108px;
    height: auto;
    object-fit: contain;
}

.footer-brand-text {
    display: none;
}

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

.footer-download-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border: 1px solid #ffffff;
    border-radius: 6px;
    color: #ffffff;
    text-decoration: none;
    font-size: 15px;
    transition: all 0.3s;
    background: transparent;
}

.footer-download-btn:hover {
    background: rgba(255, 255, 255, 0.15);
}

.footer-right {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.footer-qrcode-group {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
    justify-content: center;
}

.qrcode-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.qrcode-img {
    width: 120px;
    height: 120px;
    object-fit: cover;
    padding: 0;
    border-radius: 0;
    background: transparent;
}

.qrcode-label {
    font-size: 15px;
    color: #ffffff;
    margin: 0;
}

.footer-copyright {
    text-align: center;
    line-height: 1.8;
    color: #cccccc;
}

.footer-copyright a {
    color: inherit;
}

.footer-legal {
    display: flex;
    justify-content: center;
    gap: 22px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.footer-legal a {
    color: #fff;
    text-decoration: none;
}

.footer-legal a:hover {
    text-decoration: underline;
}

.beian-icon {
    width: 16px;
    height: 16px;
    vertical-align: middle;
    margin: 0 4px;
    object-fit: contain;
}

@media (max-width: 1024px) {
    .section { padding: 0 40px; }
    .section-inner { flex-direction: column !important; gap: 60px; text-align: center; }
    .en-bg-title { left: 50%; transform: translateX(-50%); font-size: 48px; }
    .main-title { font-size: 42px; }
    .hand-phone-img { width: 320px !important; }
    .download-btns { flex-direction: column; gap: 15px; }
    .decor-top-right, .decor-bottom-left, .decor-icon { display: none; }
    .site-footer { padding: 30px 20px; }
    .footer-inner { flex-direction: column; align-items: center; text-align: center; }
    .footer-brand { justify-content: center; }
    .footer-downloads { align-items: center; }
    .footer-qrcode-group { gap: 25px; }
    .qrcode-img { width: 100px; height: 100px; }
}
/* ========== 最新资讯区块（与主页统一风格） ========== */
.news-section {
    padding: 0 80px;
    background: linear-gradient(135deg, #f0f8ff 0%, #f8f0ff 100%);
    display: flex;
    align-items: center;
}

.news {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}

.news .en-bg-title {
    position: absolute;
    top: -20px;
    left: 0;
    font-size: 72px;
    font-weight: 900;
    color: rgba(58, 142, 255, 0.08);
    z-index: 0;
    letter-spacing: 2px;
    white-space: nowrap;
}

.news-title {
    font-size: 68px;
    font-weight: 900;
    color: #111;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
    letter-spacing: 4px;
}

.news-desc {
    font-size: 17px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 800px;
}

.news-list {
    list-style: none;
    margin-bottom: 32px;
}

.news-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    border-bottom: 1px solid rgba(58, 142, 255, 0.1);
    transition: padding-left 0.3s;
}

.news-item:hover {
    padding-left: 12px;
}

.news-link {
    color: #333;
    font-size: 16px;
    text-decoration: none;
    transition: color 0.3s;
}

.news-link:hover {
    color: #3a8eff;
}

.news-time {
    color: #999;
    font-size: 14px;
    flex-shrink: 0;
    margin-left: 20px;
}

.news-more {
    text-align: right;
}

.news-more a {
    display: inline-block;
    color: #3a8eff;
    font-size: 15px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
}

.news-more a:hover {
    color: #2b7de0;
    padding-right: 6px;
}

/* 响应式适配（与主页保持一致） */
@media (max-width: 1024px) {
    .news-section {
        padding: 0 40px;
    }
    .news .en-bg-title {
        left: 50%;
        transform: translateX(-50%);
        font-size: 48px;
    }
    .news-title {
        font-size: 42px;
        text-align: center;
    }
    .news-desc {
        text-align: center;
    }
    .news-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    .news-time {
        margin-left: 0;
    }
    .news-more {
        text-align: center;
    }
}

@media (max-width: 760px) {
    .nav {
        height: 56px;
        padding: 0 14px;
        overflow-x: auto;
        background: rgba(255, 255, 255, 0.88);
        backdrop-filter: blur(10px);
    }

    .logo {
        margin-right: 14px;
    }

    .logo img {
        width: 76px;
    }

    .nav a {
        margin: 0 10px;
        font-size: 14px;
        white-space: nowrap;
    }

    .section,
    .news-section {
        min-height: 100vh;
        padding: 84px 22px 48px;
        overflow: visible;
    }

    .section1 {
        gap: 24px;
    }

    .hero-copy span {
        font-size: 15px;
    }

    .main-title-img {
        max-width: 330px;
    }

    .download-btns {
        flex-direction: row;
        gap: 10px;
    }

    .download-btn {
        padding: 9px 14px;
        font-size: 14px;
    }

    .down-arrow-group {
        display: none;
    }

    .about-lead {
        font-size: 16px;
        margin-bottom: 28px;
    }

    .about-points,
    .faq-list {
        grid-template-columns: 1fr;
    }

    .about-points li {
        min-height: auto;
        padding: 22px;
    }

    .help-more {
        text-align: center;
    }
}

@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;
    }
}

/* ========== 思语博客列表与文章详情 ========== */
html.blog-document,
html.blog-document body {
    height: auto;
    min-height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
}

.blog-page {
    color: #222;
    background: #f7f9ff;
}

.blog-page .nav {
    border-bottom: 1px solid rgba(58, 142, 255, 0.08);
    transition: box-shadow 0.25s ease, background-color 0.25s ease;
}

.blog-page .nav.is-scrolled {
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 10px 30px rgba(38, 72, 118, 0.1);
}

.skip-link {
    position: fixed;
    top: 8px;
    left: 12px;
    z-index: 1200;
    padding: 10px 16px;
    color: #fff;
    background: #2b7de0;
    border-radius: 8px;
    text-decoration: none;
    transform: translateY(-160%);
    transition: transform 0.2s ease;
}

.skip-link:focus {
    transform: translateY(0);
}

.blog-page .container {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
}

.blog-hero {
    position: relative;
    min-height: 410px;
    display: flex;
    align-items: center;
    padding: 120px 0 70px;
    overflow: hidden;
    background:
        radial-gradient(circle at 78% 20%, rgba(110, 81, 255, 0.14), transparent 30%),
        radial-gradient(circle at 15% 76%, rgba(58, 142, 255, 0.16), transparent 32%),
        linear-gradient(135deg, #eff7ff 0%, #f8f1ff 100%);
}

.blog-hero::after {
    content: "";
    position: absolute;
    right: 7%;
    bottom: -100px;
    width: 310px;
    height: 310px;
    border: 56px solid rgba(58, 142, 255, 0.06);
    border-radius: 50%;
}

.blog-hero .container {
    position: relative;
    z-index: 2;
}

.blog-hero-en {
    position: absolute;
    top: -38px;
    left: -4px;
    color: rgba(58, 142, 255, 0.08);
    font-size: clamp(58px, 9vw, 118px);
    font-weight: 900;
    letter-spacing: 3px;
    white-space: nowrap;
}

.blog-page-heading {
    position: relative;
    z-index: 1;
    color: #111;
    font-size: clamp(48px, 7vw, 82px);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: 5px;
    margin: 0 0 18px;
}

.blog-hero-desc {
    position: relative;
    z-index: 1;
    color: #596273;
    font-size: 19px;
    line-height: 1.8;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 34px;
    color: #8a93a3;
    font-size: 14px;
}

.breadcrumbs a {
    color: #2b7de0;
    text-decoration: none;
}

.breadcrumbs a:hover {
    text-decoration: underline;
}

.site-main {
    padding: 72px 0 88px;
    background: linear-gradient(180deg, #f7f9ff 0%, #fff 36%);
}

.news-wrap {
    position: relative;
}

.features {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 36px;
    align-items: start;
}

.features::after {
    content: "";
    display: table;
    clear: both;
}

.features .left {
    position: sticky;
    top: 92px;
    padding: 18px;
    border: 1px solid rgba(58, 142, 255, 0.13);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 16px 45px rgba(46, 82, 134, 0.08);
}

.features .left ul,
.newsc > ul {
    list-style: none;
}

.features .left a {
    display: block;
    padding: 13px 16px;
    color: #4e5969;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
}

.features .left a.active,
.features .left a:hover {
    color: #fff;
    background: linear-gradient(135deg, #3a8eff, #6e64ff);
}

.features .right {
    min-width: 0;
    padding: 42px 46px;
    border: 1px solid rgba(58, 142, 255, 0.12);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 22px 70px rgba(46, 82, 134, 0.09);
}

.newsc > h1,
.newsc > h2,
.features .right > .title {
    color: #111;
    font-size: clamp(30px, 4vw, 44px);
    line-height: 1.3;
    margin: 0 0 16px;
}

.newsc > h1::after,
.newsc > h2::after {
    content: "";
    display: block;
    width: 54px;
    height: 4px;
    margin-top: 14px;
    border-radius: 4px;
    background: #3a8eff;
}

.post-time {
    padding-bottom: 22px;
    margin-bottom: 30px;
    color: #8b94a4;
    font-size: 14px;
    border-bottom: 1px solid #edf0f5;
}

.content {
    color: #414a59;
    font-size: 17px;
    line-height: 1.95;
    word-break: break-word;
}

.content h2,
.content h3,
.content h4 {
    color: #171b22;
    line-height: 1.45;
    margin: 1.6em 0 0.7em;
}

.content p,
.content ul,
.content ol,
.content blockquote,
.content table {
    margin: 0 0 1.25em;
}

.content ul,
.content ol {
    padding-left: 1.5em;
}

.content a {
    color: #2b7de0;
}

.content img,
.content video,
.content iframe {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
}

.content blockquote {
    padding: 18px 22px;
    color: #596273;
    border-left: 4px solid #3a8eff;
    background: #f5f8ff;
}

.content table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
    border-collapse: collapse;
}

.content th,
.content td {
    padding: 10px 14px;
    border: 1px solid #dfe5ef;
}

.article-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    padding-top: 28px;
    margin-top: 42px;
    border-top: 1px solid #edf0f5;
}

.article-nav p {
    min-width: 0;
    color: #7d8796;
    line-height: 1.7;
}

.article-nav p:last-child {
    text-align: right;
}

.article-nav a {
    color: #2b7de0;
    text-decoration: none;
}

.article-nav a:hover {
    text-decoration: underline;
}

.blog-detail-back {
    display: inline-flex;
    align-items: center;
    margin-top: 30px;
    padding: 11px 18px;
    color: #2b7de0;
    border: 1px solid rgba(58, 142, 255, 0.3);
    border-radius: 999px;
    text-decoration: none;
    transition: color 0.2s, background-color 0.2s;
}

.blog-detail-back:hover {
    color: #fff;
    background: #3a8eff;
}

.newsc > ul {
    margin-top: 28px;
}

.newsc > ul > li {
    display: flex;
    gap: 26px;
    padding: 24px 0;
    border-bottom: 1px solid #edf0f5;
}

.newsc > ul > li:first-child {
    padding-top: 8px;
}

.news-thumb {
    position: relative;
    flex: 0 0 220px;
    min-height: 142px;
    align-self: stretch;
    overflow: hidden;
    border-radius: 8px;
    background: linear-gradient(135deg, #e8f3ff, #f3edff);
}

.news-thumb a {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
}

.news-thumb img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.35s ease;
}

.newsc > ul > li:hover .news-thumb img {
    transform: scale(1.04);
}

.news-summary h3 {
    margin: 0 0 12px;
    font-size: 22px;
    line-height: 1.45;
}

.news-summary h3 a {
    color: #202733;
    text-decoration: none;
}

.news-summary h3 a:hover {
    color: #2b7de0;
}

.news-summary p {
    color: #697384;
    line-height: 1.8;
}

.news-summary p a {
    color: #2b7de0;
    text-decoration: none;
    white-space: nowrap;
}

.news-meta {
    padding-top: 16px;
}

.pages {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 38px;
}

.pages a,
.pages span {
    display: inline-flex;
    min-width: 38px;
    height: 38px;
    align-items: center;
    justify-content: center;
    padding: 0 12px;
    color: #556070;
    border: 1px solid #dfe5ef;
    border-radius: 9px;
    text-decoration: none;
    background: #fff;
}

.pages a:hover,
.pages .current,
.pages .active {
    color: #fff;
    border-color: #3a8eff;
    background: #3a8eff;
}

.blog-footer {
    margin-top: 0;
}

@media (max-width: 1024px) {
    .blog-page .nav {
        padding: 0 22px;
    }

    .blog-page .logo {
        margin-right: 24px;
    }

    .blog-page .nav a {
        margin: 0 13px;
    }

    .features {
        grid-template-columns: 180px minmax(0, 1fr);
        gap: 24px;
    }

    .features .right {
        padding: 34px 30px;
    }
}

@media (max-width: 760px) {
    .blog-page .container {
        width: min(100% - 32px, 1180px);
    }

    .blog-hero {
        min-height: 360px;
        padding: 108px 0 58px;
    }

    .blog-hero-en {
        top: -18px;
        font-size: 52px;
    }

    .blog-page-heading {
        font-size: 46px;
        letter-spacing: 3px;
    }

    .blog-hero-desc {
        font-size: 16px;
    }

    .breadcrumbs {
        margin-top: 24px;
    }

    .site-main {
        padding: 42px 0 58px;
    }

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

    .features .left {
        position: static;
        padding: 10px;
    }

    .features .left a {
        text-align: center;
    }

    .features .right {
        padding: 28px 20px;
        border-radius: 16px;
    }

    .newsc > ul > li {
        flex-direction: column;
        gap: 18px;
    }

    .news-thumb {
        flex: 0 0 auto !important;
        width: 100%;
        min-height: 0;
        height: auto;
        align-self: auto;
        aspect-ratio: 16 / 9;
    }

    .news-thumb a,
    .news-thumb img {
        height: 100%;
    }

    .news-summary h3 {
        font-size: 20px;
    }

    .article-nav {
        grid-template-columns: 1fr;
    }

    .article-nav p:last-child {
        text-align: left;
    }

    .content {
        font-size: 16px;
    }
}

/* ========== 关于、帮助、联系与协议页面 ========== */
html.info-document,
html.info-document body {
    height: auto;
    min-height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
}

.content-page {
    color: #26303f;
    background: #f7f9ff;
}

.content-page .nav {
    border-bottom: 1px solid rgba(58, 142, 255, 0.08);
    transition: box-shadow 0.25s ease, background-color 0.25s ease;
}

.content-page .nav.is-scrolled {
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 10px 30px rgba(38, 72, 118, 0.1);
}

.content-page .container {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
}

.info-hero {
    position: relative;
    min-height: 390px;
    display: flex;
    align-items: center;
    padding: 116px 0 66px;
    overflow: hidden;
    background:
        radial-gradient(circle at 82% 22%, rgba(112, 79, 255, 0.14), transparent 30%),
        radial-gradient(circle at 14% 82%, rgba(58, 142, 255, 0.17), transparent 31%),
        linear-gradient(135deg, #eef7ff 0%, #faf1ff 100%);
}

.info-hero::after {
    content: "";
    position: absolute;
    right: 7%;
    bottom: -115px;
    width: 330px;
    height: 330px;
    border: 58px solid rgba(58, 142, 255, 0.055);
    border-radius: 50%;
}

.info-hero .container {
    position: relative;
    z-index: 2;
}

.info-hero-en {
    position: absolute;
    top: -38px;
    left: -4px;
    color: rgba(58, 142, 255, 0.08);
    font-size: clamp(54px, 9vw, 112px);
    font-weight: 900;
    letter-spacing: 3px;
    white-space: nowrap;
}

.info-page-title {
    position: relative;
    z-index: 1;
    color: #111;
    font-size: clamp(48px, 7vw, 78px);
    font-weight: 900;
    line-height: 1.12;
    letter-spacing: 5px;
    margin: 0 0 18px;
}

.info-hero-desc {
    position: relative;
    z-index: 1;
    max-width: 780px;
    color: #596273;
    font-size: 18px;
    line-height: 1.85;
}

.info-main {
    padding: 68px 0 90px;
    background: linear-gradient(180deg, #f7f9ff 0%, #fff 28%);
}

.info-layout {
    display: grid;
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 34px;
    align-items: start;
}

.info-toc {
    position: sticky;
    top: 90px;
    padding: 18px;
    border: 1px solid rgba(58, 142, 255, 0.13);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 16px 45px rgba(46, 82, 134, 0.08);
}

.info-toc strong {
    display: block;
    padding: 8px 12px 13px;
    color: #1d2530;
    font-size: 17px;
}

.info-toc ul {
    list-style: none;
}

.info-toc a {
    display: block;
    padding: 10px 12px;
    color: #5c6676;
    border-radius: 9px;
    text-decoration: none;
    line-height: 1.45;
}

.info-toc a:hover,
.info-toc a.active {
    color: #fff;
    background: linear-gradient(135deg, #3a8eff, #6e64ff);
}

.info-article {
    min-width: 0;
    padding: 46px 50px;
    border: 1px solid rgba(58, 142, 255, 0.12);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.97);
    box-shadow: 0 22px 70px rgba(46, 82, 134, 0.09);
}

.info-intro {
    padding: 22px 24px;
    margin-bottom: 34px;
    color: #4f5b6c;
    line-height: 1.9;
    border-left: 4px solid #3a8eff;
    border-radius: 0 12px 12px 0;
    background: #f4f8ff;
}

.info-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 22px;
    padding-bottom: 24px;
    margin-bottom: 30px;
    color: #8a94a4;
    font-size: 14px;
    border-bottom: 1px solid #edf0f5;
}

.info-section {
    scroll-margin-top: 90px;
    padding-top: 6px;
    margin-bottom: 42px;
}

.info-section:last-child {
    margin-bottom: 0;
}

.info-section h2 {
    color: #151b24;
    font-size: clamp(27px, 3.5vw, 36px);
    line-height: 1.4;
    margin: 0 0 20px;
}

.info-section h2::after {
    content: "";
    display: block;
    width: 50px;
    height: 4px;
    margin-top: 12px;
    border-radius: 4px;
    background: #3a8eff;
}

.info-section h3 {
    color: #202733;
    font-size: 21px;
    line-height: 1.5;
    margin: 28px 0 12px;
}

.info-section p,
.info-section li {
    color: #4c5767;
    font-size: 16px;
    line-height: 1.95;
}

.info-section p {
    margin-bottom: 15px;
}

.info-section ul,
.info-section ol {
    padding-left: 1.5em;
    margin: 0 0 18px;
}

.info-section a {
    color: #2b7de0;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin: 22px 0;
}

.info-card {
    padding: 24px;
    border: 1px solid rgba(58, 142, 255, 0.14);
    border-radius: 14px;
    background: linear-gradient(145deg, #fff, #f8fbff);
}

.info-card h3 {
    margin-top: 0;
}

.info-card p:last-child {
    margin-bottom: 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin: 22px 0 30px;
}

.contact-card {
    padding: 26px;
    border: 1px solid rgba(58, 142, 255, 0.14);
    border-radius: 16px;
    background: #fbfdff;
}

.contact-card .label {
    display: block;
    color: #7c8797;
    font-size: 14px;
    margin-bottom: 8px;
}

.contact-card strong,
.contact-card a {
    color: #202733;
    font-size: 18px;
    line-height: 1.6;
    text-decoration: none;
}

.contact-card a:hover {
    color: #2b7de0;
}

.faq-group details {
    border: 1px solid rgba(58, 142, 255, 0.14);
    border-radius: 13px;
    background: #fbfdff;
    margin-bottom: 14px;
}

.faq-group summary {
    padding: 19px 22px;
    color: #202733;
    font-size: 17px;
    font-weight: 700;
    cursor: pointer;
}

.faq-group details p,
.faq-group details ul {
    margin: 0;
    padding: 0 22px 20px;
}

.faq-group details ul {
    padding-left: 42px;
}

.policy-warning {
    padding: 20px 22px;
    margin-bottom: 28px;
    color: #594c32;
    line-height: 1.85;
    border: 1px solid #f0dfb2;
    border-radius: 12px;
    background: #fffaf0;
}

.policy-table {
    width: 100%;
    margin: 20px 0;
    border-collapse: collapse;
    font-size: 15px;
}

.policy-table th,
.policy-table td {
    padding: 13px 14px;
    color: #4c5767;
    line-height: 1.7;
    text-align: left;
    vertical-align: top;
    border: 1px solid #dfe5ef;
}

.policy-table th {
    color: #202733;
    background: #f3f7fd;
}

.content-footer-nav {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding-top: 28px;
    margin-top: 38px;
    border-top: 1px solid #edf0f5;
}

.content-footer-nav a {
    color: #2b7de0;
    text-decoration: none;
}

@media (max-width: 900px) {
    .info-layout {
        grid-template-columns: 1fr;
    }

    .info-toc {
        position: static;
    }

    .info-toc ul {
        display: flex;
        flex-wrap: wrap;
        gap: 6px;
    }

    .info-article {
        padding: 36px 32px;
    }
}

@media (max-width: 760px) {
    .content-page .container {
        width: min(100% - 32px, 1180px);
    }

    .info-hero {
        min-height: 350px;
        padding: 108px 0 54px;
    }

    .info-hero-en {
        top: -18px;
        font-size: 48px;
    }

    .info-page-title {
        font-size: 43px;
        letter-spacing: 3px;
    }

    .info-hero-desc {
        font-size: 16px;
    }

    .info-main {
        padding: 42px 0 60px;
    }

    .info-article {
        padding: 27px 20px;
        border-radius: 16px;
    }

    .info-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .policy-table {
        display: block;
        max-width: 100%;
        overflow-x: auto;
    }

    .content-footer-nav {
        flex-direction: column;
    }
}