*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#F6F8FF;color:#222;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}.drawer-open{overflow:hidden}a{color: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:flex;align-items:center;flex:0 0 auto;text-decoration:none}.site-logo img{display:block;height:40px;width:auto;max-width:168px;object-fit:contain}.logo-fallback{font-size:22px;font-weight:900;letter-spacing:.06em;color:#1D2B5F}.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:10px;flex:0 0 auto}.text-login{font-weight:700;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:#FFFFFF;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 10px 24px rgba(89,126,247,.28);border:0}.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-toggle,.mobile-register{display:none}.channel-strip{background:#fff;border-top:1px solid rgba(89,126,247,.08);border-bottom:1px solid rgba(89,126,247,.10)}.channel-inner{max-width:1200px;margin:0 auto;padding:10px 20px;display:flex;gap:18px;overflow-x:auto;scrollbar-width:thin}.channel-inner a{white-space:nowrap;text-decoration:none;color:#5B647A;font-size:14px;font-weight:700}.channel-inner a:hover{color:#597EF7}.site-main{min-height:60vh;padding-bottom:34px}.container{width:min(1200px,calc(100% - 40px));margin:0 auto}.reading{width:min(860px,calc(100% - 40px));margin:0 auto}.hero{padding:64px 0 34px}.hero .eyebrow,.eyebrow{font-size:13px;font-weight:900;letter-spacing:.12em;color:#597EF7;text-transform:uppercase}.hero h1,.page-hero h1{font-size:clamp(38px,5vw,50px);line-height:1.12;color:#1D2B5F;margin:12px 0 18px}.hero p,.page-hero p{font-size:18px;line-height:1.85;color:#5B647A;max-width:780px}.page-hero{padding:64px 0 32px}.section{padding:56px 0}.section-tight{padding:34px 0}.section h2,.reading h2{color:#1D2B5F;font-size:30px;line-height:1.25;margin:0 0 16px}.section h3,.reading h3{color:#1D2B5F;font-size:20px;line-height:1.4}.lead{font-size:18px;line-height:1.88;color:#333}.copy p,.reading p{font-size:17px;line-height:1.86;color:#333;margin:0 0 18px}.muted{color:#5B647A}.soft-panel,.notice-strip,.quote-box,.step-list,.qa-box,.link-panel{background:#fff;border:1px solid rgba(89,126,247,.16);box-shadow:0 16px 40px rgba(89,126,247,.10);border-radius:18px}.soft-panel{padding:26px}.notice-strip{padding:22px 26px}.notice-strip p{margin:0;line-height:1.82}.grid-2,.grid-3,.grid-4{display:grid;gap:20px}.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))}.entry-card,.topic-card,.faq-card{background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:18px;padding:22px;text-decoration:none;box-shadow:0 16px 40px rgba(89,126,247,.08)}.entry-card:hover,.topic-card:hover{transform:translateY(-2px);transition:.2s ease;box-shadow:0 20px 46px rgba(89,126,247,.13)}.entry-card h3,.topic-card h3{margin:0 0 10px;color:#1D2B5F}.entry-card p,.topic-card p{margin:0;color:#5B647A;line-height:1.7}.capsules{display:flex;gap:10px;overflow-x:auto;padding:8px 0 4px}.capsules 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}.capsules a:hover{color:#597EF7}.home-slider{position:relative;background:#101827;border-radius:18px;overflow:hidden;min-height:350px}.slide{display:none;min-height:350px;align-items:center;justify-content:center}.slide.is-active{display:flex}.slide .media{border-radius:0;background:#101827;aspect-ratio:auto;height:350px}.slide .media>img{object-fit:contain}.slider-arrow{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}.slider-prev{left:16px}.slider-next{right:16px}.slider-dots{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);display:flex;gap:8px}.slider-dot{width:10px;height:10px;border:0;border-radius:50%;background:rgba(255,255,255,.42);cursor:pointer}.slider-dot.is-active{background:#fff}.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.tall{height:250px;aspect-ratio:auto}.two-col-media{display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:center}.two-col-media.reverse{grid-template-columns:.95fr 1.05fr}.two-col-media.reverse .media-wrap{order:2}.two-col-media.reverse .copy{order:1}.link-list{display:grid;gap:10px}.link-list a{display:flex;justify-content:space-between;gap:14px;padding:14px 16px;border-radius:14px;background:#fff;border:1px solid rgba(89,126,247,.13);text-decoration:none;color:#1D2B5F;font-weight:700}.link-list a::after{content:'→';color:#597EF7}.article-index{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}.article-index a{padding:9px 12px;background:#ECF0FF;border-radius:999px;text-decoration:none;color:#1D2B5F;font-weight:700}.article-section{scroll-margin-top:140px;padding:28px 0;border-top:1px solid rgba(89,126,247,.13)}.steps{counter-reset:step;display:grid;gap:16px}.step{position:relative;padding:22px 22px 22px 72px;background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:18px}.step::before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:20px;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:#ECF0FF;color:#597EF7;font-weight:900}.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}.compare>div{background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:18px;padding:24px}.mini-note{padding:18px 20px;border-left:4px solid #597EF7;background:#ECF0FF;border-radius:0 14px 14px 0;line-height:1.8}.faq-list{display:grid;gap:16px}.faq-card h3{margin-top:0}.faq-card p{margin-bottom:0}.app-banner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:28px 30px;border-radius:18px;background:linear-gradient(135deg,#ECF0FF,#EAF7FF);border:1px solid rgba(89,126,247,.16)}.app-banner h2{margin:0 0 8px}.app-banner p{margin:0;color:#5B647A}.text-link{font-weight:900;color:#597EF7;text-decoration:none}.side-float{position:fixed;right:16px;top:50%;transform:translateY(-50%);z-index:7000;width:112px;display:grid;gap:8px;padding:10px;background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:18px;box-shadow:0 16px 40px rgba(89,126,247,.13)}.side-float a,.side-float button{min-height:38px;border-radius:12px;border:0;text-decoration:none;display:grid;place-items:center;background:#fff;color:#597EF7;font-weight:800;font-family:inherit;cursor:pointer}.side-float .main-btn{color:#fff;min-width:0;height:40px}.site-footer{margin-top:64px;background:#1F1F1F;color:#D7DCE8}.footer-grid{width:min(1200px,calc(100% - 40px));margin:0 auto;padding:54px 0 36px;display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:28px}.footer-grid h2{font-size:17px;color:#fff}.footer-grid a{display:block;text-decoration:none;color:#D7DCE8;margin:10px 0}.footer-brand img{height:40px;width:auto;max-width:168px;object-fit:contain;filter:brightness(1.2)}.footer-brand p{line-height:1.8}.footer-wordmark{color:#fff;font-size:22px;font-weight:900}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);width:min(1200px,calc(100% - 40px));margin:0 auto;padding:18px 0 26px;display:flex;justify-content:space-between;gap:24px;align-items:flex-start}.footer-bottom p{margin:0;line-height:1.7;font-size:13px}.mobile-bottom{display:none}.mobile-drawer,.drawer-mask{display:none}
@media(max-width:1120px){.nav-core{gap:2px}.nav-core a{padding:8px 7px}.header-inner{gap:10px}.side-float{right:8px}}
@media(max-width:980px){.site-header{position:sticky}.header-inner{min-height:64px;padding:0 14px;display:grid;grid-template-columns:1fr auto 1fr;gap:8px}.nav-core,.header-actions,.channel-strip{display:none}.site-logo{justify-self:center}.site-logo img{height:36px;max-width:150px}.menu-toggle{display:flex;width:42px;height:42px;border:0;border-radius:12px;background:#fff;flex-direction:column;justify-content:center;gap:5px;padding:0 11px;justify-self:start}.menu-toggle span{height:2px;background:#1D2B5F;border-radius:2px;width:100%}.mobile-register{display:inline-flex;justify-self:end;min-width:84px;height:40px;padding:0 14px}.side-float{display:none}.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-y:auto;padding-bottom:30px}.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-top{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid rgba(89,126,247,.12)}.drawer-logo img{height:36px;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}.drawer-group{padding:16px 18px 4px}.drawer-group strong{display:block;color:#597EF7;font-size:13px;margin-bottom:8px}.drawer-group a{display:block;padding:10px 0;text-decoration:none;color:#1D2B5F;border-bottom:1px solid rgba(89,126,247,.08)}.container{width:min(100% - 28px,1200px)}.reading{width:min(100% - 28px,860px)}.hero,.page-hero{padding:48px 0 26px}.hero h1,.page-hero h1{font-size:clamp(30px,8vw,38px)}.section{padding:44px 0}.grid-4{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.two-col-media,.two-col-media.reverse{grid-template-columns:1fr}.two-col-media.reverse .media-wrap,.two-col-media.reverse .copy{order:initial}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-bottom{padding-bottom:92px}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:8000;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid rgba(89,126,247,.16);box-shadow:0 -8px 24px rgba(89,126,247,.10);padding:8px max(8px,env(safe-area-inset-right)) calc(8px + env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-left))}.mobile-bottom a{text-align:center;padding:8px 4px;text-decoration:none;color:#1D2B5F;font-weight:800;font-size:13px}}
@media(max-width:640px){.hero p,.page-hero p,.lead{font-size:16px}.section h2,.reading h2{font-size:25px}.copy p,.reading p{font-size:16px}.home-slider,.slide{min-height:210px}.slide .media{height:210px}.slider-arrow{width:38px;height:38px}.grid-4,.grid-3,.grid-2,.compare{grid-template-columns:1fr}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.topic-card{padding:16px}.two-col-media{gap:18px}.media.tall{height:220px}.app-banner{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column}.header-inner{padding:0 10px}.mobile-register{min-width:82px;padding:0 12px}.site-logo img{max-width:132px}.site-footer{margin-top:44px}}
@media(max-width:390px){.header-inner{grid-template-columns:44px 1fr 86px}.mobile-register{min-width:80px;font-size:13px}.site-logo img{max-width:118px}.topic-card{padding:14px}.topic-card p{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 ===== */