*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;overflow-x:hidden;background:#F6F8FF;color:#222;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.82}a{color:inherit}img{max-width:100%}button,input,select,textarea{font:inherit}.site-header{position:sticky;top:0;z-index:9999;width:100%;background:linear-gradient(135deg,#F7F9FF 0%,#ECF0FF 52%,#EAF7FF 100%);box-shadow:0 8px 24px rgba(89,126,247,.10);backdrop-filter:blur(12px)}.header-inner{max-width:1200px;min-height:72px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}.site-logo,.drawer-logo,.footer-logo{display:inline-flex;align-items:center;text-decoration:none;flex:0 0 auto}.site-logo img{display:block;height:40px;width:auto;max-width:168px;object-fit:contain}.nav-core{display:flex;align-items:center;gap:8px;white-space:nowrap;flex-wrap:nowrap}.nav-core a{color:#1D2B5F;padding:8px 10px;border-radius:999px;font-weight:700;text-decoration:none}.nav-core a.is-current,.nav-core a:hover{background:rgba(255,255,255,.82);color:#597EF7}.header-actions{display:flex;align-items:center;gap:10px;white-space:nowrap}.login-link{text-decoration:none;font-weight:700;color:#1D2B5F}.main-btn{position:relative;overflow:hidden;isolation:isolate;display:inline-flex;align-items:center;justify-content:center;height:42px;min-width:96px;padding:0 20px;background:linear-gradient(135deg,#7580EE 0%,#597EF7 48%,#7AC4F5 100%);color:#FFFFFF;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 10px 24px rgba(89,126,247,.28)}.main-btn::before{content:"";position:absolute;inset:-2px;border-radius:inherit;background:linear-gradient(120deg,transparent 0%,rgba(255,255,255,.85) 35%,transparent 70%);transform:translateX(-120%);animation:btnShine 2.4s infinite;z-index:-1}.main-btn::after{content:"";position:absolute;inset:-1px;border-radius:inherit;border:1px solid rgba(255,255,255,.65);box-shadow:0 0 8px rgba(122,196,245,.55),0 0 18px rgba(89,126,247,.35);pointer-events:none}@keyframes btnShine{0%{transform:translateX(-120%)}55%{transform:translateX(120%)}100%{transform:translateX(120%)}}.menu-button,.mobile-register{display:none}.channel-bar{background:#fff;border-top:1px solid rgba(89,126,247,.10);border-bottom:1px solid rgba(89,126,247,.12)}.channel-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;gap:18px;overflow-x:auto;white-space:nowrap;scrollbar-width:thin}.channel-inner a{padding:11px 0;color:#5B647A;text-decoration:none;font-size:14px;font-weight:700}.channel-inner a:hover{color:#597EF7}.site-main{min-height:60vh}.section,.page-hero,.article-wrap,.wide-section{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}.section{padding-top:68px;padding-bottom:68px}.page-hero{padding-top:68px;padding-bottom:30px}.page-hero h1{margin:0 0 16px;color:#1D2B5F;font-size:clamp(34px,5vw,50px);line-height:1.18}.page-hero p{max-width:820px;margin:0;color:#5B647A;font-size:18px}.eyebrow{display:inline-block;margin-bottom:12px;color:#597EF7;font-weight:800;letter-spacing:.08em}.section-title{margin:0 0 18px;color:#1D2B5F;font-size:clamp(28px,3.3vw,40px);line-height:1.25}.section-lead{max-width:860px;margin:0 0 28px;color:#5B647A;font-size:17px}.surface{background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:18px;box-shadow:0 16px 40px rgba(89,126,247,.10)}.text-card{padding:28px}.text-card h2,.text-card h3{margin-top:0;color:#1D2B5F}.text-card p:last-child{margin-bottom:0}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.link-card{display:block;padding:24px;background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:18px;text-decoration:none;box-shadow:0 16px 40px rgba(89,126,247,.08);transition:.2s}.link-card:hover{transform:translateY(-2px);border-color:#597EF7}.link-card h2,.link-card h3{margin:0 0 8px;color:#1D2B5F}.link-card p{margin:0;color:#5B647A}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:16px;background:#ECF0FF;aspect-ratio:16/9}.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}.media-placeholder{position:absolute;inset:0;background:linear-gradient(135deg,#ECF0FF,#EAF7FF)}.media.card-media{height:172px;aspect-ratio:auto}.media.feature-media{height:250px;aspect-ratio:auto}.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:34px;align-items:center}.split.reverse .split-media{order:2}.split-copy h2{margin-top:0;color:#1D2B5F;font-size:32px}.split-copy p{color:#46506a}.pill-row{display:flex;gap:10px;overflow-x:auto;padding:10px 0;scrollbar-width:thin}.pill-row a{flex:0 0 auto;padding:10px 15px;border-radius:999px;background:#fff;border:1px solid rgba(89,126,247,.16);text-decoration:none;color:#1D2B5F;font-weight:700}.notice-strip{padding:22px 26px;border-left:4px solid #597EF7;background:#fff;border-radius:16px;box-shadow:0 16px 40px rgba(89,126,247,.08)}.notice-strip strong{color:#1D2B5F}.list-clean{margin:0;padding-left:1.2em}.list-clean li+li{margin-top:9px}.timeline{display:grid;gap:16px}.timeline-item{display:grid;grid-template-columns:70px 1fr;gap:16px;align-items:start}.timeline-mark{height:44px;display:flex;align-items:center;justify-content:center;border-radius:999px;background:#ECF0FF;color:#597EF7;font-weight:800}.timeline-item h3{margin:0 0 8px;color:#1D2B5F}.timeline-item p{margin:0;color:#5B647A}.read-nav{display:flex;gap:12px;flex-wrap:wrap}.read-nav a{padding:9px 13px;border-radius:10px;background:#ECF0FF;color:#1D2B5F;text-decoration:none;font-weight:700}.quote-note{padding:24px 26px;background:linear-gradient(135deg,#ECF0FF,#EAF7FF);border-radius:18px;color:#1D2B5F}.faq-list{display:grid;gap:14px}.faq-item{padding:22px 24px;background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:16px}.faq-item h2,.faq-item h3{margin:0 0 8px;color:#1D2B5F}.faq-item p{margin:0;color:#46506a}.hero-shell{max-width:1200px;margin:34px auto 0;padding:0 20px}.hero-slider{position:relative;overflow:hidden;height:360px;background:#101827;border-radius:18px;box-shadow:0 16px 40px rgba(16,24,39,.18)}.hero-slide{display:none;position:absolute;inset:0;padding:16px}.hero-slide.is-active{display:block}.hero-slide .media{height:100%;background:#101827}.hero-slide .media-placeholder{background:linear-gradient(135deg,#101827,#1D2B5F)}.hero-slide img{object-fit:contain}.hero-controls{position:absolute;inset:0;pointer-events:none}.hero-arrow{pointer-events:auto;position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border:0;border-radius:50%;background:rgba(255,255,255,.88);color:#1D2B5F;font-size:22px;cursor:pointer}.hero-prev{left:16px}.hero-next{right:16px}.hero-dots{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);display:flex;gap:8px;pointer-events:auto}.hero-dot{width:9px;height:9px;border:0;border-radius:50%;background:rgba(255,255,255,.45);padding:0;cursor:pointer}.hero-dot.is-active{background:#fff;transform:scale(1.25)}.topic-matrix .link-card{min-height:156px}.app-banner{padding:34px;background:linear-gradient(135deg,#ECF0FF,#EAF7FF);border-radius:18px;display:grid;grid-template-columns:1.4fr .6fr;gap:24px;align-items:center}.app-banner h2{margin:0 0 10px;color:#1D2B5F}.app-banner p{margin:0;color:#5B647A}.article-wrap{padding-top:30px;padding-bottom:72px}.article{max-width:860px;margin:0 auto}.article>section,.article>.surface,.article>.quote-note{margin-bottom:26px}.article h2{font-size:28px;color:#1D2B5F;line-height:1.32}.article h3{color:#1D2B5F}.article p{font-size:17px;color:#333}.article a:not(.main-btn){color:#4E69D8;font-weight:700}.legal-callout{padding:24px 26px;background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:16px}.legal-callout strong{color:#1D2B5F}.site-footer{background:#1F1F1F;color:#D7DCE8;margin-top:44px}.footer-grid{max-width:1200px;margin:0 auto;padding:52px 20px 32px;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}.footer-grid section{min-width:0}.footer-grid h2{margin:0 0 14px;color:#fff;font-size:18px}.footer-grid a{display:block;margin:8px 0;color:#D7DCE8;text-decoration:none}.footer-grid a:hover{color:#fff}.footer-brand p{max-width:360px}.footer-logo img{height:42px;width:auto;max-width:168px;object-fit:contain}.footer-bottom{max-width:1200px;margin:0 auto;padding:20px;border-top:1px solid rgba(255,255,255,.1);font-size:14px;color:#aeb5c3}.footer-bottom span{display:block;margin-top:8px;color:#fff}.logo-fallback{font-weight:900;color:#1D2B5F;font-size:22px}.logo-fallback-dark{color:#fff}.float-tools{position:fixed;right:12px;top:42%;z-index:9000;width:112px;display:grid;gap:8px}.float-tools>a,.float-tools>button{min-height:40px;border:1px solid rgba(89,126,247,.16);border-radius:12px;background:#fff;color:#1D2B5F;text-decoration:none;font-weight:700;display:flex;align-items:center;justify-content:center;padding:8px;text-align:center;box-shadow:0 10px 24px rgba(89,126,247,.12)}.float-tools .float-main{color:#fff;border:0}.back-top{cursor:pointer}.mobile-bottom{display:none}.mobile-drawer,.drawer-mask{display:none}.noscript-mobile-nav{display:none}body.drawer-open{overflow:hidden}
@media(max-width:1100px){.nav-core{gap:2px}.nav-core a{padding:8px 7px;font-size:14px}.header-inner{padding-right:14px;padding-left:14px}.float-tools{display:none}.grid-4{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:980px){.site-header{position:sticky}.header-inner{min-height:64px;display:grid;grid-template-columns:1fr auto 1fr;gap:10px}.menu-button{display:inline-grid;width:42px;height:42px;place-content:center;gap:5px;border:0;border-radius:12px;background:#fff;box-shadow:0 8px 20px rgba(89,126,247,.12);cursor:pointer;justify-self:start}.menu-button span{display:block;width:20px;height:2px;background:#1D2B5F}.site-logo{justify-self:center}.site-logo img{height:34px;max-width:142px}.nav-core,.header-actions,.channel-bar{display:none}.mobile-register{display:inline-flex;justify-self:end;min-width:92px;height:40px;padding:0 14px}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);background:#fff;z-index:12000;transform:translateX(-105%);transition:transform .2s ease;box-shadow:18px 0 40px rgba(29,43,95,.18)}.mobile-drawer.is-open{transform:translateX(0)}.drawer-mask{display:none;position:fixed;inset:0;background:rgba(16,24,39,.42);z-index:11000;opacity:0;pointer-events:none;transition:opacity .18s ease}.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}.drawer-head{height:68px;padding:12px 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #eef1f7}.drawer-logo img{height:34px;width:auto;max-width:150px;object-fit:contain}.drawer-close{width:40px;height:40px;border:0;border-radius:12px;background:#ECF0FF;color:#1D2B5F;font-size:28px;cursor:pointer}.drawer-scroll{height:calc(100vh - 68px);overflow-y:auto;padding:18px 16px 32px}.drawer-group h2{margin:18px 0 8px;font-size:14px;color:#7580EE}.drawer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.drawer-links a{padding:10px 8px;border-radius:10px;background:#F6F8FF;text-decoration:none;color:#1D2B5F;font-size:14px}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(3,minmax(0,1fr))}.split{grid-template-columns:1fr}.split.reverse .split-media{order:0}.app-banner{grid-template-columns:1fr}.hero-slider{height:290px}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9500;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid rgba(89,126,247,.16);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{text-align:center;padding:11px 6px;text-decoration:none;color:#1D2B5F;font-weight:700;font-size:14px}.site-footer{padding-bottom:62px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.section{padding-top:48px;padding-bottom:48px}.page-hero{padding-top:46px}.page-hero h1{font-size:clamp(28px,9vw,34px)}.page-hero p{font-size:16px}.hero-shell{margin-top:24px;padding:0 12px}.hero-slider{height:210px;border-radius:16px}.hero-slide{padding:8px}.hero-arrow{width:38px;height:38px}.hero-prev{left:8px}.hero-next{right:8px}.grid-2,.grid-3{grid-template-columns:1fr}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.link-card{padding:18px;border-radius:16px}.topic-matrix .link-card{min-height:136px}.split-copy h2{font-size:28px}.media.feature-media{height:220px}.text-card{padding:22px}.timeline-item{grid-template-columns:58px 1fr}.footer-grid{grid-template-columns:1fr;gap:20px;padding-top:40px}.footer-grid section:not(.footer-brand){display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:14px}.footer-grid section:not(.footer-brand) h2{grid-column:1/-1}.article p{font-size:16px}.app-banner{padding:24px}.notice-strip{padding:20px}.section,.page-hero,.article-wrap,.wide-section{padding-left:16px;padding-right:16px}}

@media(min-width:1101px){.site-main{padding-right:68px}}
@media(max-width:980px){.noscript-mobile-nav{display:block;background:#fff;border-bottom:1px solid rgba(89,126,247,.16);padding:14px 16px}.noscript-mobile-nav section{max-width:1200px;margin:0 auto 12px}.noscript-mobile-nav h2{margin:0 0 7px;color:#597EF7;font-size:14px}.noscript-mobile-nav section>div{display:flex;gap:8px;overflow-x:auto;white-space:nowrap}.noscript-mobile-nav a{display:inline-flex;padding:8px 10px;border-radius:10px;background:#F6F8FF;color:#1D2B5F;text-decoration:none;font-weight:700;font-size:14px}}


/* ===== 2026-09-22 批量修复：注册入口可见性 ===== */

.main-btn,
a.main-btn,
.header-actions .main-btn,
.mobile-register,
.hero-actions .main-btn,
.hero-actions a,
.slider-register,
.carousel-register {
    position: relative !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    min-width: 96px !important;
    min-height: 42px !important;
    padding: 0 20px !important;
    border: 0 !important;
    border-radius: 999px !important;
    background: linear-gradient(135deg,#7580EE 0%,#597EF7 48%,#7AC4F5 100%) !important;
    color: #fff !important;
    -webkit-text-fill-color: #fff !important;
    font-size: 15px !important;
    font-weight: 700 !important;
    line-height: 42px !important;
    text-indent: 0 !important;
    opacity: 1 !important;
    visibility: visible !important;
    overflow: visible !important;
    text-decoration: none !important;
    white-space: nowrap !important;
    z-index: 20 !important;
    box-shadow: 0 10px 24px rgba(89,126,247,.28) !important;
}

.main-btn::before,
.main-btn::after {
    pointer-events: none !important;
}

.hero-actions,
.slide-actions,
.slider-actions,
.banner-actions {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    position: relative !important;
    z-index: 30 !important;
    gap: 12px !important;
}

.hero-actions a,
.slide-actions a,
.slider-actions a,
.banner-actions a {
    font-size: 15px !important;
    color: #fff !important;
    -webkit-text-fill-color: #fff !important;
}

/* 图片绝不能透明或隐藏 */
.media img,
.hero-slider img,
.slider img,
.carousel img,
.slide img,
.banner img {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    max-width: 100% !important;
    object-fit: contain !important;
    object-position: center !important;
}

/* 手机菜单关闭时绝不能用透明遮罩盖住按钮 */
.drawer-mask {
    pointer-events: none !important;
}
.drawer-mask.is-visible {
    pointer-events: auto !important;
}

@media(max-width:980px){
    .mobile-register {
        display: inline-flex !important;
        visibility: visible !important;
        opacity: 1 !important;
        font-size: 14px !important;
        min-width: 82px !important;
        padding: 0 14px !important;
    }
}


/* ===== 注册入口去重修复 ===== */

/* 电脑端绝对隐藏手机注册按钮 */
.mobile-register{
    display:none !important;
}

/* 删除上一轮误加到轮播中的注册入口 */
.slider-register,
.slide-actions .slider-register,
.hero-slider .slider-register,
.hero-carousel .slider-register,
.home-slider .slider-register{
    display:none !important;
}

/* 电脑端只显示正常桌面注册 */
.desktop-register{
    display:inline-flex !important;
}

/* 手机端：隐藏桌面按钮，只保留顶部一个注册入口 */
@media(max-width:980px){
    .desktop-register{
        display:none !important;
    }

    .mobile-register{
        display:inline-flex !important;
        align-items:center !important;
        justify-content:center !important;
    }
}


/* ===== FINAL REGISTER FIX ===== */

/* 电脑顶部 */
.header-actions{
    display:flex !important;
    align-items:center !important;
    gap:10px !important;
}

.header-actions .login-link{
    display:inline-flex !important;
    align-items:center !important;
    justify-content:center !important;
    color:#1D2B5F !important;
    font-weight:700 !important;
    text-decoration:none !important;
    white-space:nowrap !important;
}

.header-actions .desktop-register{
    display:inline-flex !important;
}

/* 手机按钮电脑端绝对隐藏 */
.header-actions .mobile-register{
    display:none !important;
}

/* 轮播只保留这一个注册入口 */
.carousel-register{
    position:absolute !important;
    left:50% !important;
    bottom:58px !important;
    transform:translateX(-50%) !important;
    z-index:50 !important;

    display:inline-flex !important;
    align-items:center !important;
    justify-content:center !important;

    width:auto !important;
    min-width:112px !important;
    height:44px !important;
    padding:0 22px !important;

    border-radius:999px !important;
    background:linear-gradient(135deg,#7580EE 0%,#597EF7 48%,#7AC4F5 100%) !important;
    color:#fff !important;
    -webkit-text-fill-color:#fff !important;
    text-decoration:none !important;
    font-weight:800 !important;
    font-size:16px !important;

    box-shadow:
        0 10px 24px rgba(89,126,247,.35),
        0 0 20px rgba(122,196,245,.35) !important;
}

/* 旧的错误按钮全部隐藏 */
.slider-register,
.slide-actions .slider-register,
.hero-actions .slider-register{
    display:none !important;
}

/* 手机 */
@media(max-width:980px){

    .header-actions .login-link,
    .header-actions .desktop-register{
        display:none !important;
    }

    .header-actions .mobile-register{
        display:inline-flex !important;
        align-items:center !important;
        justify-content:center !important;
        min-width:88px !important;
        height:40px !important;
        padding:0 13px !important;
    }

    .carousel-register{
        bottom:42px !important;
        min-width:96px !important;
        height:40px !important;
        padding:0 16px !important;
        font-size:14px !important;
    }
}


/* ===== TOPIC IMAGE CARDS FINAL START ===== */

.topic-grid{
    align-items:stretch;
}

.topic-card.topic-card-photo{
    padding:0 !important;
    overflow:hidden !important;
    display:block !important;
    min-height:0 !important;
    background:#fff !important;
    border:1px solid rgba(89,126,247,.16) !important;
    border-radius:18px !important;
    text-decoration:none !important;
    box-shadow:0 12px 30px rgba(89,126,247,.08) !important;
    transition:transform .18s ease, box-shadow .18s ease !important;
}

.topic-card.topic-card-photo:hover{
    transform:translateY(-3px);
    box-shadow:0 18px 36px rgba(89,126,247,.14) !important;
}

.topic-card .topic-thumb{
    display:block !important;
    position:relative !important;
    width:100% !important;
    aspect-ratio:16/9 !important;
    overflow:hidden !important;
    background:#ECF0FF !important;
    border-radius:0 !important;
    padding:0 !important;
    margin:0 !important;
}

.topic-card .topic-thumb img{
    display:block !important;
    width:100% !important;
    height:100% !important;
    max-width:100% !important;
    object-fit:contain !important;
    object-position:center center !important;
    opacity:1 !important;
    visibility:visible !important;
}

.topic-card .topic-image-missing{
    display:block !important;
    position:absolute !important;
    inset:0 !important;
    background:linear-gradient(135deg,#ECF0FF,#EAF7FF) !important;
}

.topic-card .topic-copy{
    display:block !important;
    padding:17px 18px 20px !important;
    background:#fff !important;
}

.topic-card .topic-copy strong{
    display:block !important;
    margin:0 0 8px !important;
    color:#1D2B5F !important;
    font-size:19px !important;
    line-height:1.4 !important;
}

.topic-card .topic-copy > span{
    display:block !important;
    color:#5B647A !important;
    font-size:14px !important;
    line-height:1.7 !important;
}

/* 电脑四列 */
@media(min-width:981px){
    .topic-grid{
        grid-template-columns:repeat(4,minmax(0,1fr)) !important;
    }
}

/* 平板三列 */
@media(max-width:980px) and (min-width:641px){
    .topic-grid{
        grid-template-columns:repeat(3,minmax(0,1fr)) !important;
    }
}

/* 手机两列 */
@media(max-width:640px){
    .topic-grid{
        grid-template-columns:repeat(2,minmax(0,1fr)) !important;
        gap:12px !important;
    }

    .topic-card .topic-copy{
        padding:13px 13px 16px !important;
    }

    .topic-card .topic-copy strong{
        font-size:16px !important;
    }

    .topic-card .topic-copy > span{
        font-size:13px !important;
    }
}

/* ===== TOPIC IMAGE CARDS FINAL END ===== */