/* 静谧的天文视觉层；阅读页继续使用网站既有样式。 */
.footer a{color:var(--accent)}
.home-intro-space{grid-template-columns:minmax(0,1fr) minmax(390px,.94fr);min-height:510px;gap:24px}
.home-intro-space>div:first-child{position:relative;z-index:1}
.home-cosmos{position:relative;height:425px;overflow:hidden;border-radius:23px;background:#02050a;isolation:isolate}
.home-cosmos::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#02050a 0%,transparent 50%),linear-gradient(0deg,#02050a 0%,transparent 36%);pointer-events:none}
.home-cosmos-stars{position:absolute;inset:0;background-image:radial-gradient(#dbe7f4 1px,transparent 1.6px),radial-gradient(#aebfcb .8px,transparent 1.3px);background-size:153px 141px,213px 191px;background-position:22px 18px,97px 79px;opacity:.22}
.home-cosmos-body{position:absolute;width:min(94%,520px);height:min(94%,520px);object-fit:contain;right:-7%;top:-7%;animation:cosmos-drift 30s ease-in-out infinite alternate;filter:drop-shadow(0 0 14px #a7c9ee17)}
.home-cosmos-caption{position:absolute;z-index:1;bottom:25px;left:28px;display:flex;flex-direction:column;gap:3px;color:#d7e3ec}
.home-cosmos-caption>span{font-size:12px;letter-spacing:.14em;color:#9caeba}.home-cosmos-caption strong{font-size:22px}.home-cosmos-caption small{font-size:13px;color:#9caeba;font-weight:400}.home-cosmos-caption a{font-size:13px;color:#9ddccf;font-weight:700;margin-top:5px}
@keyframes cosmos-drift{to{transform:translate(5px,-7px) scale(1.015)}}
.space-page{padding-bottom:25px}.space-heading{max-width:750px;padding:54px 0 20px}.space-heading h1{margin:10px 0}.space-heading>p{font-size:17px}.solar-tabs{display:flex;gap:7px;width:max-content;padding:5px;background:var(--surface);border:1px solid var(--line);border-radius:11px;margin-top:23px}.solar-tabs button{border:0;color:var(--muted);background:transparent;padding:9px 17px;border-radius:7px;font-size:14px;font-weight:700}.solar-tabs button[aria-pressed=true]{background:var(--accent);color:#07252b}.scale-warning{font-size:13px!important;color:var(--soft);margin:12px 0 0}
.solar-stage{position:relative;height:600px;overflow:hidden;border:1px solid #202d3b;border-radius:22px;background:radial-gradient(ellipse at 50% 50%,#101b25 0%,#03070d 43%,#010308 100%);color:#e9f1f5;isolation:isolate}
.solar-stage::before{content:"";position:absolute;inset:0;background-image:radial-gradient(#d1dce6 .8px,transparent 1.3px);background-size:139px 117px;opacity:.13;pointer-events:none}
.solar-orbit{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) rotate(-13deg);border:1px solid #7394a02a;border-radius:50%;pointer-events:none}.orbit-a{width:22%;height:20%}.orbit-b{width:40%;height:35%}.orbit-c{width:65%;height:59%}.orbit-d{width:89%;height:86%}
.solar-body{--size:55px;position:absolute;z-index:2;left:var(--x);top:var(--y);width:var(--size);transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;gap:3px;text-align:center;transition:filter .2s,transform .2s}.solar-body:hover,.solar-body:focus-visible{z-index:10;transform:translate(-50%,-50%) scale(1.11);filter:drop-shadow(0 0 9px #cadde670)}.solar-body img{width:var(--size);height:var(--size);object-fit:contain}.solar-name{font-size:12px;font-weight:700;color:#dce7ea;text-shadow:0 1px 5px #000}
.solar-tooltip{position:absolute;display:none;left:calc(100% + 10px);top:0;width:195px;padding:11px 13px;border:1px solid #536775;background:#121e2aee;border-radius:9px;text-align:left;box-shadow:0 15px 35px #0009;font-size:12px;line-height:1.7;color:#c1ced7;pointer-events:none}.solar-tooltip strong,.solar-tooltip span{display:block}.solar-tooltip strong{font-size:15px;color:#fff}.solar-tooltip em{font-size:11px;font-style:normal;font-weight:400;color:#aebecb}.solar-body:hover .solar-tooltip,.solar-body:focus-visible .solar-tooltip{display:block}.solar-jupiter .solar-tooltip,.solar-saturn .solar-tooltip{right:calc(100% + 10px);left:auto}
.solar-sun{--x:50%;--y:50%;--size:113px}.solar-mercury{--x:59%;--y:46%;--size:37px}.solar-venus{--x:43%;--y:56%;--size:48px}.solar-earth{--x:63%;--y:64%;--size:53px}.solar-mars{--x:31%;--y:39%;--size:42px}.solar-jupiter{--x:72%;--y:31%;--size:91px}.solar-saturn{--x:78%;--y:72%;--size:126px}.solar-uranus{--x:20%;--y:72%;--size:63px}.solar-neptune{--x:17%;--y:25%;--size:59px}
.mobile-solar-hint{font-size:13px;margin:10px 0 0;color:var(--soft)}.solar-list{margin-top:55px}.space-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.space-card{min-height:105px;display:flex;align-items:center;gap:13px;padding:11px 14px;background:var(--surface);border:1px solid var(--line);border-radius:13px;transition:border-color .2s,transform .2s}.space-card:hover{border-color:var(--accent);transform:translateY(-2px)}.space-card img{width:74px;height:74px;object-fit:contain;border-radius:50%;background:#03070b;flex:none}.space-card span{min-width:0;display:flex;flex-direction:column}.space-card small{font-size:11px;color:var(--soft)}.space-card strong{font-size:18px}.space-card em{font-style:normal;color:var(--muted);font-size:12px;line-height:1.5}.space-card b{margin-left:auto;color:var(--accent);font-weight:500}.solar-moon-entry{display:grid;grid-template-columns:1fr minmax(270px,390px);align-items:center;gap:25px;border-top:1px solid var(--line);margin-top:50px;padding-top:35px}.solar-moon-entry h2{margin:5px 0}.solar-moon-entry p{margin:0}
.solar-real{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:25px;margin-top:20px}.solar-real>p{max-width:750px}.solar-real .text-link{display:inline-block;margin-top:15px}.solar-real .interactive-demo{max-width:100%}
.space-breadcrumbs{display:flex;align-items:center;gap:9px;color:var(--soft);font-size:13px;padding:23px 0}.space-breadcrumbs a:hover{color:var(--accent)}.body-hero{min-height:510px;position:relative;display:grid;grid-template-columns:.72fr 1.28fr;align-items:center;gap:8px;overflow:hidden;background:#02050a;border:1px solid #24313d;border-radius:23px;color:#f2f5f6;padding:40px 43px}.body-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 74% 50%,#172b3944,transparent 54%);pointer-events:none}.body-hero-copy{position:relative;z-index:2}.body-hero-copy .eyebrow{color:#a8c7d0}.body-hero h1{font-size:clamp(60px,8vw,112px);letter-spacing:-.09em;margin:10px 0 0;line-height:1}.body-english{font-size:26px;letter-spacing:.05em;color:#a9c0ca;margin:5px 0 30px}.body-tagline{font-size:18px;color:#dce7ea;max-width:350px;line-height:1.7}.body-back{display:inline-block;color:#9ce4d1;font-size:14px;margin-top:27px}.body-hero-visual{position:relative;height:430px;display:flex;align-items:center;justify-content:center;min-width:0}.body-hero-visual img{max-width:100%;max-height:100%;object-fit:contain;filter:drop-shadow(0 0 15px #b0cde71c)}.body-image-note{position:absolute;right:0;bottom:0;max-width:420px;text-align:right;color:#a9b8c3;font-size:11px;line-height:1.5}.body-image-note a{color:#9ce4d1}.body-content{max-width:1110px;margin:auto}.body-lead{margin:44px 0 60px;border-left:3px solid var(--accent);padding:15px 26px;background:var(--surface2);border-radius:0 11px 11px 0}.body-lead p{font-size:21px;color:var(--text);margin:8px 0 0;line-height:1.8}.body-section{margin:65px 0}.body-section-head{max-width:760px;margin-bottom:25px}.body-section-head h2{margin:7px 0}.body-section-head p{font-size:14px;margin:0}.body-stat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}.body-stat-grid>div{background:var(--surface);padding:21px 23px;min-height:99px}.body-stat-grid small{display:block;color:var(--soft);font-size:12px}.body-stat-grid strong{display:block;font-size:17px;line-height:1.45;margin-top:9px;font-weight:650}.body-experience{padding:37px 40px;border:1px solid #40525e;background:linear-gradient(120deg,#172a37,#0b1825);border-radius:18px;color:#eaf3f4}.body-experience .eyebrow{color:#91d9cd}.body-experience h2{margin:9px 0 20px}.body-experience p{color:#cddbe0;font-size:17px;max-width:760px;line-height:1.8;margin:10px 0}.body-story-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}.body-story-grid article{border:1px solid var(--line);background:var(--surface);padding:22px;border-radius:13px}.body-story-grid h3{font-size:18px;margin:0 0 10px}.body-story-grid p{font-size:14px;line-height:1.8;margin:0}.body-fact{margin-top:15px;padding:17px 20px;border-left:2px solid var(--gold);background:var(--surface2);border-radius:0 9px 9px 0}.body-fact span{color:var(--gold);font-size:12px;font-weight:700}.body-fact p{font-size:15px;margin:4px 0 0}.related-reading>div:last-child{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:28px}.body-bottom-nav{display:flex;justify-content:space-between;gap:15px;border-top:1px solid var(--line);padding-top:22px;margin:0 0 50px;color:var(--accent);font-size:14px}
.credits-list{padding-bottom:45px}.credits-general{padding:18px 21px;background:var(--surface2);border-radius:11px;font-size:14px}.credits-general a,.credit-item a,.credits-data a{color:var(--accent);font-weight:700}.credit-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:26px}.credit-item{display:flex;gap:18px;padding:19px;background:var(--surface);border:1px solid var(--line);border-radius:13px}.credit-item img{width:92px;height:92px;object-fit:contain;flex:none;background:#03070b;border-radius:50%}.credit-item h2{font-size:19px;margin:0 0 10px}.credit-item p{font-size:12px;line-height:1.6;margin:4px 0}.credit-item a{font-size:12px}.credits-data{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:35px}.credits-data h2{font-size:21px;margin:0}.credits-data a{font-size:13px}
@media(max-width:1060px){.home-intro-space{grid-template-columns:1fr 1fr}.space-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.body-hero{grid-template-columns:.85fr 1.15fr}.solar-stage{height:540px}.solar-body{transform:translate(-50%,-50%) scale(.9)}.solar-body:hover,.solar-body:focus-visible{transform:translate(-50%,-50%) scale(1)}.credit-grid{grid-template-columns:1fr}}
@media(max-width:760px){.home-intro-space{grid-template-columns:1fr;gap:23px}.home-cosmos{height:320px}.home-cosmos-body{width:min(85%,420px);height:320px;top:-5%;right:-1%}.space-heading{padding:39px 0 10px}.solar-stage{height:470px}.solar-body{transform:translate(-50%,-50%) scale(.75)}.solar-body:hover,.solar-body:focus-visible{transform:translate(-50%,-50%) scale(.82)}.solar-tooltip{display:none!important}.body-hero{min-height:0;grid-template-columns:1fr;padding:33px 29px 27px}.body-hero-copy{order:1}.body-hero-visual{order:0;height:300px}.body-hero h1{font-size:70px}.body-english{font-size:21px;margin-bottom:18px}.body-back{margin-top:9px}.body-image-note{font-size:10px}.body-stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.body-story-grid{grid-template-columns:1fr}.solar-moon-entry{grid-template-columns:1fr}.credit-item img{width:70px;height:70px}}
@media(max-width:540px){.home-cosmos{height:260px}.home-cosmos-body{height:270px;width:80%;right:-3%}.home-cosmos-caption{bottom:17px;left:20px}.solar-stage{display:none}.mobile-solar-hint{margin-top:20px}.solar-list{margin-top:35px}.space-card-grid{grid-template-columns:1fr}.space-card{min-height:90px}.space-card img{width:62px;height:62px}.body-hero{padding:22px 21px 25px}.body-hero-visual{height:245px}.body-hero h1{font-size:62px}.body-lead{margin:28px 0 42px;padding:15px 18px}.body-lead p{font-size:18px}.body-section{margin:49px 0}.body-stat-grid>div{padding:16px 13px;min-height:92px}.body-stat-grid strong{font-size:14px}.body-experience{padding:25px 22px}.body-experience p{font-size:15px}.related-reading>div:last-child{grid-template-columns:1fr}.credit-item{gap:12px;padding:14px}.credit-item img{width:54px;height:54px}.body-bottom-nav{flex-direction:column}}
@media(prefers-reduced-motion:reduce){.home-cosmos-body,.space-card,.solar-body{animation:none;transition:none}}
/* 原始官方影像多带黑底；统一黑场让裁切边缘自然消失。 */
.home-cosmos,.solar-stage,.body-hero{background:#000}
.home-cosmos::after{background:linear-gradient(90deg,#000 0%,transparent 50%),linear-gradient(0deg,#000 0%,transparent 36%)}
.body-hero::before{display:none}
.solar-body img{mix-blend-mode:screen}
@media(max-width:540px){.body-stat-grid>div:last-child:nth-child(odd){grid-column:1/-1}}