*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#F6F8FF;color:#222;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.82;overflow-x:hidden}body.drawer-open{overflow:hidden}a{color:#315ecf;text-decoration:none}img{max-width:100%}button{font:inherit}.skip-link{position:fixed;left:12px;top:-70px;z-index:20000;background:#fff;padding:10px 14px;border-radius:10px}.skip-link:focus{top:12px}
.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:flex;align-items:center;font-weight:900}.site-logo img{display:block;height:40px;width:auto;max-width:168px;object-fit:contain}.logo-text{font-size:23px;letter-spacing:.06em;color:#1D2B5F;white-space:nowrap}.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}.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:12px;white-space:nowrap}.login-link{font-weight:700;color:#1D2B5F}.mobile-register,.menu-toggle{display:none}
.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%)}}
.channel-strip{background:#fff;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}.channel-inner a{flex:0 0 auto;padding:11px 0;color:#5B647A;font-size:14px}.channel-inner a:hover{color:#597EF7}.site-main{min-height:60vh;padding-right:68px}.container{width:min(1200px,calc(100% - 40px));margin:0 auto}.reading{width:min(860px,calc(100% - 40px));margin:0 auto}.section{padding:64px 0}.section-tight{padding:42px 0}.page-hero{padding:70px 0 42px;background:linear-gradient(180deg,#ECF0FF 0%,rgba(246,248,255,0) 100%)}.eyebrow{margin:0 0 10px;color:#597EF7;font-weight:800;letter-spacing:.08em}h1,h2,h3{color:#1D2B5F;line-height:1.28;margin-top:0}h1{font-size:clamp(38px,5vw,50px);margin-bottom:16px}h2{font-size:clamp(24px,3vw,32px);margin-bottom:14px}h3{font-size:20px}.lead{font-size:18px;color:#4a5673;max-width:820px}.muted{color:#5B647A}
.card,.notice-card,.qa-item,.timeline-item,.step-item{background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:18px;box-shadow:0 16px 40px rgba(89,126,247,.10);padding:24px}.grid-2,.grid-3,.grid-4{display:grid;gap:22px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.link-card{display:block;color:inherit;transition:.18s}.link-card:hover{transform:translateY(-3px);box-shadow:0 20px 46px rgba(89,126,247,.15)}.arrow{color:#597EF7;font-weight:800}.pills{display:flex;gap:10px;overflow-x:auto;padding:4px 0 8px;white-space:nowrap}.pills a{flex:0 0 auto;background:#fff;border:1px solid rgba(89,126,247,.18);border-radius:999px;padding:9px 15px;color:#34456b;font-weight:700}.observation{background:#fff;border-left:4px solid #597EF7;border-radius:16px;padding:18px 22px;color:#43506e}
.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.card-media{height:176px;aspect-ratio:auto}.media.wide{height:250px;aspect-ratio:auto}.media-placeholder{position:absolute;inset:0;background:linear-gradient(135deg,#ECF0FF,#EAF7FF)}.split{display:grid;grid-template-columns:minmax(0,1.04fr) minmax(0,.96fr);gap:30px;align-items:center}.split.reverse .split-media{order:2}.split.reverse .split-copy{order:1}
.hero-carousel{position:relative;overflow:hidden;background:#101827;border-radius:18px;height:360px;box-shadow:0 20px 48px rgba(16,24,39,.14)}.hero-slide{display:none;position:absolute;inset:0}.hero-slide.is-active{display:block}.hero-slide .media{height:100%;aspect-ratio:auto;border-radius:0;background:#101827}.hero-slide .media>img{object-fit:contain}.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:44px;height:44px;border:0;border-radius:50%;background:rgba(255,255,255,.92);color:#1D2B5F;font-size:26px;cursor:pointer}.hero-prev{left:16px}.hero-next{right:16px}.hero-dots{position:absolute;z-index:5;left:50%;bottom:14px;transform:translateX(-50%);display:flex;gap:8px}.hero-dot{width:10px;height:10px;border:0;border-radius:50%;background:rgba(255,255,255,.45);padding:0;cursor:pointer}.hero-dot.is-active{background:#fff}
.app-banner{display:flex;align-items:center;justify-content:space-between;gap:24px;background:linear-gradient(135deg,#fff,#ECF0FF);border:1px solid rgba(89,126,247,.16);border-radius:18px;padding:26px}.clean-list,.steps,.timeline{margin:0;padding:0;list-style:none}.clean-list li{padding:12px 0;border-bottom:1px solid #edf0f8}.clean-list li:last-child{border-bottom:0}.steps,.timeline{display:grid;gap:14px}.step-item,.timeline-item{position:relative;padding-left:64px}.step-no{position:absolute;left:20px;top:20px;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#ECF0FF;color:#597EF7;font-weight:900}.path-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.path-row a{display:block;background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:16px;padding:20px;color:#1D2B5F;font-weight:800}.quote-note{border-radius:16px;background:#ECF0FF;padding:20px 22px;color:#31405f}.kicker-links{display:flex;gap:12px;flex-wrap:wrap}.kicker-links a{background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:10px;padding:8px 12px}.qa-list{display:grid;gap:14px}.qa-item p{margin-bottom:0}.table-like{display:grid;gap:1px;background:#dde5f8;border:1px solid #dde5f8;border-radius:16px;overflow:hidden}.table-row{display:grid;grid-template-columns:180px 1fr;background:#fff}.table-row strong,.table-row span{padding:16px}.table-row strong{background:#f5f7ff;color:#1D2B5F}.topic-index{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.topic-index a{background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:12px;padding:14px 16px}
.floating-tools{position:fixed;right:16px;top:42%;z-index:7000;width:110px;display:grid;gap:8px;padding:10px;background:rgba(255,255,255,.96);border:1px solid rgba(89,126,247,.16);border-radius:16px;box-shadow:0 16px 40px rgba(89,126,247,.12)}.floating-tools a,.floating-tools button{min-height:38px;border:0;border-radius:10px;background:#fff;color:#315ecf;font-weight:700;display:flex;align-items:center;justify-content:center;text-align:center;cursor:pointer;padding:6px}.floating-tools .main-btn{color:#fff;min-width:0;height:40px;border-radius:999px}.site-footer{background:#1F1F1F;color:#D7DCE8;padding:54px 0 24px}.footer-grid{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:34px}.footer-grid h2{font-size:16px;color:#fff;margin-bottom:12px}.footer-grid a{display:block;color:#D7DCE8;padding:4px 0}.footer-logo img{height:38px;width:auto;max-width:168px;object-fit:contain}.footer-logo .logo-text{color:#fff}.footer-bottom{max-width:1200px;margin:28px auto 0;padding:22px 20px 0;border-top:1px solid rgba(255,255,255,.12);font-size:14px;color:#bfc5d2}.mobile-bottom{display:none}.mobile-drawer,.drawer-mask{display:none}
@media(max-width:1080px){.site-main{padding-right:0}.nav-core{gap:2px}.nav-core a{padding:8px 7px;font-size:14px}.header-actions .login-link{display:none}.floating-tools{display:none}}
@media(max-width:980px){.header-inner{min-height:64px;padding:0 14px;display:grid;grid-template-columns:92px minmax(0,1fr) 112px;gap:8px}.menu-toggle{display:flex;width:44px;height:42px;border:0;background:#fff;border-radius:12px;align-items:center;justify-content:center;flex-direction:column;gap:4px;box-shadow:0 6px 18px rgba(89,126,247,.10)}.menu-toggle span{width:20px;height:2px;background:#1D2B5F;border-radius:2px}.site-logo{justify-content:center;min-width:0}.site-logo img{height:34px;max-width:148px}.nav-core,.header-actions,.channel-strip{display:none}.mobile-register{display:inline-flex;justify-self:end;min-width:104px;padding:0 14px;height:40px}.site-main{padding-bottom:72px}.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:64px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid #edf0f8}.drawer-logo img{height:34px;width:auto;max-width:160px;object-fit:contain}.drawer-close{border:0;background:#ECF0FF;color:#1D2B5F;width:38px;height:38px;border-radius:50%;font-size:25px}.drawer-scroll{height:calc(100vh - 64px);overflow-y:auto;padding:14px 16px 28px}.drawer-scroll section{margin-bottom:18px}.drawer-scroll h2{font-size:14px;color:#8290ae;margin:0 0 6px}.drawer-scroll a{display:block;color:#1D2B5F;padding:9px 0;border-bottom:1px solid #f0f2f8}.hero-carousel{height:290px}.mobile-bottom{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:9000;background:#fff;border-top:1px solid rgba(89,126,247,.14);box-shadow:0 -8px 24px rgba(89,126,247,.08);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{min-height:58px;display:flex;align-items:center;justify-content:center;color:#405073;font-weight:700}.grid-4{grid-template-columns:repeat(3,minmax(0,1fr))}.split{grid-template-columns:1fr}.split.reverse .split-media,.split.reverse .split-copy{order:initial}}
@media(max-width:720px){.container,.reading{width:min(100% - 28px,1200px)}.section{padding:48px 0}.section-tight{padding:34px 0}.page-hero{padding:48px 0 28px}h1{font-size:clamp(28px,9vw,34px)}h2{font-size:24px}.lead{font-size:17px}.grid-3,.grid-2{grid-template-columns:1fr}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-carousel{height:210px}.hero-arrow{width:38px;height:38px;font-size:22px}.media.wide{height:220px}.app-banner{align-items:flex-start;flex-direction:column}.path-row{grid-template-columns:1fr}.table-row{grid-template-columns:1fr}.table-row strong{padding-bottom:6px}.table-row span{padding-top:6px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}}
@media(max-width:430px){.header-inner{grid-template-columns:78px minmax(0,1fr) 106px;padding:0 10px}.mobile-register{min-width:100px;padding:0 10px;font-size:14px}.site-logo img{height:31px;max-width:136px}.logo-text{font-size:19px}.grid-4{gap:12px}.card,.notice-card,.qa-item,.timeline-item,.step-item{padding:18px}.topic-index{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}}


/* ===== 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 ===== */