/* ===== 墨澜 · 阅读宇宙 设计系统 ===== */
:root{
  --ink:#060609; --ink-2:#0b0b13; --ink-3:#101019; --ink-4:#15151f;
  --paper:#ece6d8; --paper-dim:#a39d8d; --paper-faint:#625e52;
  --gold:#d9a94e; --gold-bright:#f2d190; --gold-deep:#8a6a2a; --jade:#7fd4b8;
  --line:rgba(236,230,216,.09); --line-strong:rgba(236,230,216,.18);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--ink); color:var(--paper);
  font-family:'Manrope',-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  overflow-x:hidden; line-height:1.6;
}
::selection{background:var(--gold-deep);color:#fff}
.serif{font-family:'Fraunces','Noto Serif SC',serif}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}

/* 星尘背景 */
#stars{position:fixed;inset:0;z-index:0;pointer-events:none}
.grain{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.05;
  background-image:radial-gradient(rgba(236,230,216,.6) 1px,transparent 1px);
  background-size:3px 3px; mix-blend-mode:overlay}
main{position:relative;z-index:2}

/* ===== 加载屏 ===== */
#loader{position:fixed;inset:0;z-index:100;background:var(--ink);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:24px;
  transition:opacity .8s ease,visibility .8s}
#loader.done{opacity:0;visibility:hidden}
#loader .ink-char{font-family:'Noto Serif SC',serif;font-size:72px;font-weight:900;
  color:var(--gold);animation:breath 1.6s ease-in-out infinite}
#loader .lbl{font-size:11px;letter-spacing:.5em;color:var(--paper-faint);text-transform:uppercase}
#loader .bar{width:180px;height:1px;background:var(--line-strong);overflow:hidden}
#loader .bar i{display:block;height:100%;width:40%;background:var(--gold);animation:slide 1.2s linear infinite}
@keyframes breath{0%,100%{opacity:.35;transform:scale(.96)}50%{opacity:1;transform:scale(1)}}
@keyframes slide{from{transform:translateX(-100%)}to{transform:translateX(450%)}}

/* ===== 通用版式 ===== */
.wrap{max-width:1180px;margin:0 auto;padding:0 32px}
section{padding:110px 0;position:relative}
.kicker{display:flex;align-items:baseline;gap:16px;margin-bottom:14px}
.kicker .en{font-size:11px;letter-spacing:.42em;text-transform:uppercase;color:var(--gold)}
.kicker .line{flex:0 0 60px;height:1px;background:var(--gold-deep)}
h2{font-family:'Fraunces','Noto Serif SC',serif;font-weight:600;
  font-size:clamp(30px,4.4vw,52px);line-height:1.15;letter-spacing:.02em}
.sub{color:var(--paper-dim);margin-top:14px;max-width:560px;font-size:15px}
.reveal{opacity:0;transform:translateY(36px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ===== Hero ===== */
#hero{min-height:100vh;display:flex;align-items:center;padding:120px 0 80px}
#hero .watermark{position:absolute;right:-4%;top:50%;transform:translateY(-50%);
  font-family:'Noto Serif SC',serif;font-weight:900;font-size:min(56vw,620px);line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(217,169,78,.14);user-select:none;pointer-events:none}
#hero .tag{font-size:11px;letter-spacing:.5em;text-transform:uppercase;color:var(--gold);margin-bottom:26px}
#hero h1{font-size:clamp(44px,7.5vw,96px);font-weight:700;line-height:1.06;
  font-family:'Fraunces','Noto Serif SC',serif}
#hero h1 em{font-style:normal;color:var(--gold)}
#hero .en-sub{margin-top:10px;font-size:13px;letter-spacing:.34em;text-transform:uppercase;color:var(--paper-faint)}
#hero .since{margin-top:34px;display:inline-flex;align-items:center;gap:12px;
  border:1px solid var(--line-strong);border-radius:999px;padding:9px 22px;font-size:13px;color:var(--paper-dim)}
#hero .since b{color:var(--gold-bright);font-weight:600}
#hero .poem{margin-top:30px;max-width:520px;color:var(--paper-dim);font-size:15.5px}
#hero .poem b{color:var(--paper);font-weight:600}
#hero .away{margin-top:38px;display:flex;align-items:center;gap:16px}
#hero .away .num{font-family:'Fraunces',serif;font-size:54px;font-weight:300;color:var(--gold);line-height:1}
#hero .away .txt{font-size:12px;letter-spacing:.24em;color:var(--paper-faint);text-transform:uppercase}
.scroll-hint{position:absolute;left:50%;bottom:34px;transform:translateX(-50%);
  font-size:10px;letter-spacing:.5em;color:var(--paper-faint);text-transform:uppercase;
  display:flex;flex-direction:column;align-items:center;gap:10px}
.scroll-hint::after{content:'';width:1px;height:44px;background:linear-gradient(var(--gold),transparent);
  animation:drip 1.8s ease-in-out infinite}
@keyframes drip{0%{transform:scaleY(0);transform-origin:top}55%{transform:scaleY(1);transform-origin:top}56%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
/* ===== 数据星带 ===== */
#band{padding:70px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.band-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.band-item{text-align:center;position:relative}
.band-item+.band-item::before{content:'';position:absolute;left:-12px;top:15%;height:70%;width:1px;background:var(--line)}
.band-item .v{font-family:'Fraunces',serif;font-weight:300;font-size:clamp(38px,4.6vw,64px);
  color:var(--gold-bright);line-height:1.05;font-variant-numeric:tabular-nums}
.band-item .u{font-size:12px;color:var(--gold);margin-left:4px}
.band-item .k{margin-top:10px;font-size:11px;letter-spacing:.3em;color:var(--paper-faint);text-transform:uppercase}

/* ===== 目标星轨 ===== */
.orbit-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;margin-top:56px}
.orbit-card{border:1px solid var(--line);border-radius:20px;padding:44px 40px;
  background:linear-gradient(160deg,rgba(21,21,31,.7),rgba(11,11,19,.4));display:flex;align-items:center;gap:36px}
.ring{position:relative;width:168px;height:168px;flex:0 0 168px}
.ring svg{transform:rotate(-90deg)}
.ring .bg{stroke:var(--line-strong)}
.ring .fg{stroke:var(--gold);stroke-linecap:round;filter:drop-shadow(0 0 8px rgba(217,169,78,.45))}
.ring .pct{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.ring .pct b{font-family:'Fraunces',serif;font-size:38px;font-weight:400;color:var(--paper)}
.ring .pct span{font-size:10px;letter-spacing:.3em;color:var(--paper-faint);text-transform:uppercase}
.orbit-info h3{font-family:'Noto Serif SC',serif;font-size:22px;font-weight:600}
.orbit-info .en{font-size:10px;letter-spacing:.32em;color:var(--gold);text-transform:uppercase;margin-bottom:8px}
.orbit-info p{color:var(--paper-dim);font-size:13.5px;margin-top:10px}
.orbit-info .nums{margin-top:16px;font-family:'Fraunces',serif;font-size:26px;color:var(--gold-bright)}
.orbit-info .nums small{font-size:13px;color:var(--paper-faint);font-family:'Manrope',sans-serif}
.orbit-note{margin-top:26px;color:var(--paper-faint);font-size:12.5px;letter-spacing:.06em}

/* ===== 打卡星图 ===== */
.starmap-box{margin-top:52px;border:1px solid var(--line);border-radius:20px;padding:40px;
  background:linear-gradient(160deg,rgba(21,21,31,.7),rgba(11,11,19,.4))}
.starmap-head{display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:14px}
.starmap-head .m{font-family:'Fraunces',serif;font-size:24px;color:var(--paper)}
.starmap-head .legend{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--paper-faint)}
.legend i{width:13px;height:13px;border-radius:4px;display:inline-block}
.starmap{display:grid;grid-template-columns:repeat(7,1fr);gap:7px;margin-top:28px}
.starmap .dow{font-size:10px;color:var(--paper-faint);text-align:center;letter-spacing:.1em;padding-bottom:6px}
.starmap .cell{aspect-ratio:1;border-radius:6px;background:var(--ink-3);border:1px solid var(--line);
  position:relative;transition:transform .25s,box-shadow .25s;cursor:default}
.starmap .cell:hover{transform:scale(1.12);box-shadow:0 0 14px rgba(217,169,78,.35);z-index:2}
.starmap .cell .d{position:absolute;top:5px;left:7px;font-size:10px;color:var(--paper-faint)}
.starmap .cell.lit .d{color:rgba(6,6,9,.55)}
.starmap .cell.today{outline:1px solid var(--gold);outline-offset:2px}
.starmap .cell .tip{position:absolute;bottom:calc(100% + 8px);left:50%;transform:translateX(-50%);
  background:var(--ink-4);border:1px solid var(--line-strong);border-radius:8px;padding:5px 12px;
  font-size:11px;white-space:nowrap;color:var(--paper);opacity:0;pointer-events:none;transition:opacity .2s;z-index:5}
.starmap .cell:hover .tip{opacity:1}
.starmap-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px}
.starmap-stats .it{text-align:center;border-top:1px solid var(--line);padding-top:20px}
.starmap-stats .v{font-family:'Fraunces',serif;font-size:32px;color:var(--gold-bright)}
.starmap-stats .k{font-size:11px;letter-spacing:.26em;color:var(--paper-faint);margin-top:6px;text-transform:uppercase}

/* ===== 光变曲线 ===== */
.charts{display:grid;grid-template-columns:1fr 1fr;gap:36px;margin-top:56px}
.chart-card{border:1px solid var(--line);border-radius:20px;padding:36px;
  background:linear-gradient(160deg,rgba(21,21,31,.7),rgba(11,11,19,.4))}
.chart-card h3{font-family:'Noto Serif SC',serif;font-size:19px;font-weight:600}
.chart-card .en{font-size:10px;letter-spacing:.3em;color:var(--gold);text-transform:uppercase;margin:4px 0 24px}
.chart-card canvas{max-height:260px}
/* ===== 书之回廊 ===== */
#gallery{padding:110px 0 130px;overflow:hidden}
.gallery-stage{margin-top:70px;height:420px;perspective:1400px;position:relative;cursor:grab;user-select:none}
.gallery-stage:active{cursor:grabbing}
.ring3d{position:absolute;left:50%;top:50%;transform-style:preserve-3d;width:0;height:0}
.gcard{position:absolute;width:150px;height:216px;left:-75px;top:-108px;border-radius:8px;overflow:hidden;
  box-shadow:0 18px 50px rgba(0,0,0,.6);backface-visibility:hidden;
  border:1px solid rgba(236,230,216,.12)}
.gcard img{width:100%;height:100%;object-fit:cover}
.gcard .shade{position:absolute;inset:0;background:rgba(6,6,9,.35);transition:background .3s}
.gcard:hover .shade{background:rgba(6,6,9,0)}
.gallery-hint{text-align:center;margin-top:26px;font-size:11px;letter-spacing:.36em;
  color:var(--paper-faint);text-transform:uppercase}
.gallery-floor{position:absolute;left:50%;top:calc(50% + 128px);width:640px;height:120px;transform:translateX(-50%);
  background:radial-gradient(ellipse at center,rgba(217,169,78,.10),transparent 65%);pointer-events:none}

/* ===== 笔记碑林 ===== */
.monuments{margin-top:56px;columns:2;column-gap:28px}
.stone{break-inside:avoid;margin-bottom:28px;border:1px solid var(--line);border-radius:16px;
  padding:30px 32px;background:linear-gradient(165deg,rgba(21,21,31,.75),rgba(11,11,19,.35));
  position:relative;transition:border-color .3s,transform .3s}
.stone:hover{border-color:rgba(217,169,78,.35);transform:translateY(-4px)}
.stone::before{content:'“';position:absolute;top:6px;left:18px;font-family:'Fraunces',serif;
  font-size:64px;color:rgba(217,169,78,.22);line-height:1}
.stone .idx{position:absolute;top:22px;right:24px;font-family:'Fraunces',serif;font-size:13px;
  color:var(--gold-deep);letter-spacing:.1em}
.stone p{font-family:'Noto Serif SC',serif;font-size:15px;line-height:1.9;color:var(--paper);
  padding-top:22px}
.stone .src{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:baseline}
.stone .src .b{font-size:13px;color:var(--gold)}
.stone .src .a{font-size:11.5px;color:var(--paper-faint)}
/* ===== 正在航行 ===== */
.now-scroll{margin-top:52px;display:flex;gap:22px;overflow-x:auto;padding:10px 4px 26px;
  scroll-snap-type:x mandatory;scrollbar-width:thin;scrollbar-color:var(--gold-deep) transparent}
.now-scroll::-webkit-scrollbar{height:5px}
.now-scroll::-webkit-scrollbar-thumb{background:var(--gold-deep);border-radius:3px}
.now-card{flex:0 0 168px;scroll-snap-align:start}
.now-card .cv{width:168px;height:242px;border-radius:8px;overflow:hidden;position:relative;
  box-shadow:0 14px 40px rgba(0,0,0,.55);border:1px solid rgba(236,230,216,.1);transition:transform .35s}
.now-card:hover .cv{transform:translateY(-8px)}
.now-card img{width:100%;height:100%;object-fit:cover}
.now-card .t{margin-top:14px;font-family:'Noto Serif SC',serif;font-size:13.5px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.now-card .a{font-size:11px;color:var(--paper-faint);margin-top:5px}
.now-card .go{display:inline-block;margin-top:9px;font-size:11px;color:var(--gold);letter-spacing:.08em;
  border-bottom:1px solid var(--gold-deep);padding-bottom:2px}

/* ===== 最亮的星 ===== */
.bright-card{margin-top:56px;display:grid;grid-template-columns:280px 1fr;gap:0;border:1px solid var(--line);
  border-radius:22px;overflow:hidden;background:linear-gradient(150deg,rgba(36,26,5,.5),rgba(11,11,19,.5))}
.bright-card .cv{position:relative;min-height:380px}
.bright-card .cv img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.bright-card .cv::after{content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,transparent 55%,rgba(11,11,19,.9))}
.bright-card .bd{padding:52px 56px;display:flex;flex-direction:column;justify-content:center}
.bright-card .badge{font-size:10px;letter-spacing:.4em;color:var(--gold);text-transform:uppercase}
.bright-card h3{font-family:'Noto Serif SC',serif;font-size:clamp(24px,3vw,36px);font-weight:700;margin-top:16px;line-height:1.3}
.bright-card .au{color:var(--paper-dim);margin-top:10px;font-size:14px}
.bright-card .hrs{margin-top:28px;display:flex;align-items:baseline;gap:10px}
.bright-card .hrs b{font-family:'Fraunces',serif;font-size:56px;font-weight:300;color:var(--gold-bright)}
.bright-card .hrs span{font-size:12px;letter-spacing:.2em;color:var(--paper-faint);text-transform:uppercase}
.bright-card .note{margin-top:18px;color:var(--paper-faint);font-size:13px}

/* ===== 征服星域 ===== */
.wall{margin-top:56px;display:grid;grid-template-columns:repeat(auto-fill,minmax(108px,1fr));gap:16px}
.wcell{position:relative;aspect-ratio:2/2.88;border-radius:6px;overflow:hidden;
  border:1px solid rgba(236,230,216,.08)}
.wcell img{width:100%;height:100%;object-fit:cover;filter:grayscale(.9) brightness(.42);
  transition:filter .45s,transform .45s}
.wcell:hover img{filter:none;transform:scale(1.06)}
.wcell .cap{position:absolute;inset:auto 0 0 0;padding:22px 10px 9px;font-size:10.5px;line-height:1.4;
  background:linear-gradient(transparent,rgba(6,6,9,.92));opacity:0;transition:opacity .35s;
  font-family:'Noto Serif SC',serif}
.wcell:hover .cap{opacity:1}
.wall-count{margin-top:22px;text-align:right;font-size:12px;color:var(--paper-faint);letter-spacing:.14em}
.wall-count b{color:var(--gold);font-family:'Fraunces',serif;font-size:16px}

/* ===== 光谱分析 ===== */
.spectrum{display:grid;grid-template-columns:1.25fr 1fr;gap:36px;margin-top:56px}
.spec-card{border:1px solid var(--line);border-radius:20px;padding:38px;
  background:linear-gradient(160deg,rgba(21,21,31,.7),rgba(11,11,19,.4))}
.spec-card h3{font-family:'Noto Serif SC',serif;font-size:19px;font-weight:600}
.spec-card .en{font-size:10px;letter-spacing:.3em;color:var(--gold);text-transform:uppercase;margin:4px 0 26px}
.cat-row{margin-bottom:18px}
.cat-row .lb{display:flex;justify-content:space-between;font-size:13px;margin-bottom:7px}
.cat-row .lb .n{font-family:'Noto Serif SC',serif}
.cat-row .lb .h{color:var(--gold-bright);font-family:'Fraunces',serif;font-size:13px}
.cat-row .tr{height:5px;border-radius:3px;background:var(--ink-3);overflow:hidden}
.cat-row .fl{height:100%;border-radius:3px;width:0;transition:width 1.4s cubic-bezier(.2,.7,.2,1);
  background:linear-gradient(90deg,var(--gold-deep),var(--gold) 60%,var(--gold-bright))}
.au-row{display:flex;align-items:center;gap:14px;padding:12px 0;border-bottom:1px solid var(--line)}
.au-row:last-child{border-bottom:none}
.au-row .rk{font-family:'Fraunces',serif;font-size:15px;color:var(--gold-deep);width:26px;flex:0 0 26px}
.au-row .nm{font-family:'Noto Serif SC',serif;font-size:14.5px;flex:1}
.au-row .tm{font-size:12px;color:var(--gold-bright)}
.au-row .ct{font-size:11px;color:var(--paper-faint);width:52px;text-align:right}

/* ===== 页脚 ===== */
footer{border-top:1px solid var(--line);padding:90px 0 60px;text-align:center;position:relative}
footer .quote{font-family:'Noto Serif SC',serif;font-size:clamp(20px,2.8vw,30px);line-height:1.8;font-weight:600}
footer .quote em{font-style:normal;color:var(--gold)}
footer .meta{margin-top:44px;font-size:11px;letter-spacing:.3em;color:var(--paper-faint);text-transform:uppercase;line-height:2.2}
footer .meta b{color:var(--gold-deep);font-weight:500}

/* ===== 响应式 ===== */
@media (max-width:960px){
  .band-grid{grid-template-columns:repeat(2,1fr);row-gap:44px}
  .orbit-grid,.charts,.spectrum{grid-template-columns:1fr}
  .monuments{columns:1}
  .bright-card{grid-template-columns:1fr}
  .bright-card .cv{min-height:300px}
  .bright-card .bd{padding:36px 30px}
  section{padding:80px 0}
  #hero .watermark{opacity:.5}
}
@media (max-width:560px){
  .wrap{padding:0 20px}
  .orbit-card{flex-direction:column;text-align:center;padding:36px 24px}
  .starmap-box{padding:24px 16px}
  .wall{grid-template-columns:repeat(auto-fill,minmax(84px,1fr));gap:10px}
}