*{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:#344765} img{max-width:100%} button,input,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{display:inline-flex;align-items:center;min-width:130px;text-decoration:none}
.site-logo img{display:block;height:40px;width:auto;max-width:168px;object-fit:contain}
.brand-text{font-size:23px;font-weight:900;color:#1D2B5F;letter-spacing:.03em}
.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;font-size:14px}
.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:800;text-decoration:none;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:#FFF;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%)}}
.mobile-top{display:none}
.channel-strip{display:block;background:#FFF;border-bottom:1px solid rgba(89,126,247,.12)}
.channel-inner{max-width:1200px;margin:0 auto;padding:9px 20px;display:flex;gap:18px;overflow-x:auto;scrollbar-width:thin}
.channel-inner a{color:#5B647A;white-space:nowrap;text-decoration:none;font-size:14px;font-weight:700}.channel-inner a:hover{color:#597EF7}
.site-main{min-height:62vh;padding-right:68px}.wrap{max-width:1200px;margin:0 auto;padding:0 20px}.reading{max-width:860px;margin:0 auto}
.page-hero{padding:64px 0 34px}.page-hero.compact{padding-bottom:20px}
.eyebrow{margin:0 0 8px;color:#597EF7;font-weight:900;letter-spacing:.08em;font-size:13px}
h1,h2,h3{color:#1D2B5F;line-height:1.25;margin-top:0}h1{font-size:clamp(30px,5vw,48px);margin-bottom:18px;letter-spacing:-.02em}h2{font-size:clamp(23px,3vw,32px);margin-bottom:16px}h3{font-size:19px;margin-bottom:8px}p{margin:0 0 16px}.lead{font-size:18px;color:#46516c;max-width:820px}
.section{padding:58px 0}.section.tight{padding:36px 0}.section.soft{background:#ECF0FF}.section.sky{background:#EAF7FF}
.white-panel,.card{background:#FFF;border:1px solid rgba(89,126,247,.16);border-radius:18px;box-shadow:0 16px 40px rgba(89,126,247,.10)}
.white-panel{padding:26px}.card{padding:22px;min-width:0}.card p:last-child{margin-bottom:0}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;align-items:center}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.text-link{font-weight:800;color:#597EF7;text-decoration:none}.text-link:hover{text-decoration:underline}
.pill-row{display:flex;gap:10px;overflow-x:auto;padding:2px 0 10px;scrollbar-width:thin}.pill-row a{flex:0 0 auto;background:#FFF;border:1px solid rgba(89,126,247,.16);border-radius:999px;padding:9px 15px;color:#1D2B5F;font-weight:800;text-decoration:none}
.notice-line{padding:18px 20px;background:#FFF;border-left:4px solid #597EF7;border-radius:0 16px 16px 0;box-shadow:0 12px 30px rgba(89,126,247,.08)}
.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{display:flex;align-items:center;justify-content:center;color:#69748c;font-weight:700;padding:24px;text-align:center}.media.tall{min-height:240px}
.home-intro{padding:38px 0 20px}.home-carousel{position:relative;height:360px;background:#101827;border-radius:18px;overflow:hidden;box-shadow:0 18px 46px rgba(16,24,39,.18)}
.carousel-slide{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .35s ease}.carousel-slide.is-active{opacity:1;pointer-events:auto}.carousel-slide img{width:100%;height:100%;object-fit:contain;object-position:center}.carousel-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:#D7DCE8;background:#101827}
.carousel-prev,.carousel-next{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border:0;border-radius:50%;background:rgba(255,255,255,.9);color:#1D2B5F;font-size:28px;line-height:1;cursor:pointer;z-index:4}.carousel-prev{left:14px}.carousel-next{right:14px}
.carousel-dots{position:absolute;left:0;right:0;bottom:14px;display:flex;justify-content:center;gap:9px;z-index:4}.carousel-dot{width:10px;height:10px;border-radius:50%;border:0;background:rgba(255,255,255,.45);padding:0;cursor:pointer}.carousel-dot.is-active{background:#FFF;transform:scale(1.2)}
.route-list{display:grid;gap:12px}.route-item{display:flex;gap:14px;align-items:flex-start;padding:16px 18px;background:#FFF;border-radius:16px;border:1px solid rgba(89,126,247,.16)}.route-no{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex:0 0 34px;background:#ECF0FF;color:#597EF7;font-weight:900}.route-item p{margin:0}
.article-copy p{font-size:17px;line-height:1.86}.article-copy ul,.article-copy ol{padding-left:1.35em}.article-copy li{margin:8px 0}
.qa-list{display:grid;gap:14px}.qa-item{background:#FFF;border:1px solid rgba(89,126,247,.16);border-radius:16px;padding:20px}.qa-item h3{margin-bottom:10px}
.mini-index{display:flex;flex-wrap:wrap;gap:10px}.mini-index a{padding:8px 12px;border-radius:999px;background:#ECF0FF;text-decoration:none;font-weight:800;color:#1D2B5F}
.compare-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.timeline{border-left:2px solid rgba(89,126,247,.24);padding-left:24px;display:grid;gap:22px}.timeline article{position:relative}.timeline article::before{content:"";position:absolute;width:12px;height:12px;border-radius:50%;background:#597EF7;left:-31px;top:8px;box-shadow:0 0 0 6px #ECF0FF}
.tag{display:inline-block;padding:5px 10px;border-radius:999px;background:#EAF7FF;color:#456b91;font-size:13px;font-weight:800}
.app-band{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:center;background:linear-gradient(135deg,#FFF 0%,#ECF0FF 100%);border:1px solid rgba(89,126,247,.16);border-radius:18px;padding:26px}
.checklist{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.checklist div{background:#FFF;border:1px solid rgba(89,126,247,.16);border-radius:14px;padding:15px 17px}
.site-footer{background:#1F1F1F;color:#D7DCE8;margin-top:72px}.footer-grid{max-width:1200px;margin:0 auto;padding:48px 20px 34px;display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:30px}.site-footer h2{font-size:17px;color:#FFF;margin-bottom:12px}.site-footer a{display:block;color:#D7DCE8;text-decoration:none;margin:7px 0}.site-footer a:hover{color:#FFF}.site-footer .site-logo{display:inline-flex}.footer-brand p{max-width:340px}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);max-width:1200px;margin:0 auto;padding:20px;color:#BFC6D2;font-size:14px}
.desktop-float{position:fixed;right:16px;top:50%;transform:translateY(-50%);z-index:8000;width:112px;background:#FFF;border:1px solid rgba(89,126,247,.16);border-radius:18px;box-shadow:0 16px 40px rgba(89,126,247,.12);padding:10px}.desktop-float a,.desktop-float button{display:flex;width:100%;min-height:38px;align-items:center;justify-content:center;border:0;background:#FFF;color:#597EF7;text-decoration:none;font-weight:800;border-radius:12px;padding:7px 6px;cursor:pointer;text-align:center;font-size:13px}.desktop-float .float-main{background:linear-gradient(135deg,#7580EE,#597EF7,#7AC4F5);color:#FFF;box-shadow:0 8px 18px rgba(89,126,247,.26)}
.mobile-bottom{display:none}
.mobile-drawer,
.drawer-mask{display:none}
@media(max-width:1100px){.site-main{padding-right:0}.nav-core{gap:3px}.nav-core a{padding:8px 7px;font-size:13px}.desktop-float{display:none}}
@media(max-width:980px){
.desktop-top,.channel-strip{display:none}
.mobile-top{height:68px;display:grid;grid-template-columns:92px 1fr 116px;align-items:center;gap:8px;padding:0 14px}.mobile-logo{justify-self:center;min-width:0}.mobile-logo img{height:36px;max-width:150px}
.menu-toggle,.drawer-close{border:1px solid rgba(89,126,247,.18);background:#FFF;color:#1D2B5F;border-radius:12px;min-height:40px;padding:0 13px;font-weight:800;cursor:pointer}.mobile-register{height:40px;min-width:0;padding:0 12px;font-size:13px;white-space:nowrap}
.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);overflow:hidden}
.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{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 16px;border-bottom:1px solid rgba(89,126,247,.14)}.drawer-head .site-logo img{height:34px}.drawer-scroll{height:calc(100vh - 68px);overflow-y:auto;padding:12px 16px 90px}.drawer-group{padding:12px 0;border-bottom:1px solid #EEF1F8}.drawer-group h2{font-size:14px;margin-bottom:6px;color:#5B647A}.drawer-group a{display:block;padding:8px 6px;color:#1D2B5F;text-decoration:none;font-weight:700}
.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,.16);box-shadow:0 -10px 28px rgba(89,126,247,.08);padding:8px 6px calc(8px + env(safe-area-inset-bottom))}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:42px;color:#1D2B5F;text-decoration:none;font-weight:800}.site-footer{padding-bottom:74px}
.grid-4{grid-template-columns:repeat(3,minmax(0,1fr))}.home-carousel{height:290px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:720px){.wrap{padding:0 16px}.page-hero{padding:46px 0 24px}.section{padding:44px 0}h1{font-size:clamp(28px,9vw,34px)}h2{font-size:24px}.lead{font-size:17px}.grid-2,.grid-3,.compare-row,.app-band{grid-template-columns:1fr}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.card{padding:18px}.white-panel{padding:20px}.home-carousel{height:215px;border-radius:16px}.carousel-prev,.carousel-next{width:36px;height:36px;font-size:23px}.checklist{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.article-copy p{font-size:16px}.media.tall{min-height:220px}}
@media(max-width:430px){.mobile-top{grid-template-columns:78px 1fr 104px;padding:0 10px}.menu-toggle{padding:0 9px}.mobile-register{padding:0 9px;font-size:12px}.site-logo img{max-width:138px}.grid-4{gap:10px}.topic-card{padding:15px}}


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