/* ===========================================================
   广州大学天文爱好者协会 · 广大天协 — 站点样式
   社娘：天宫月海   |   主题：星空 / 月海 / 紫微宫
   =========================================================== */

:root{
  --bg-0:#04050f;
  --bg-1:#080a1c;
  --bg-2:#0e1030;
  --ink:#eaefff;
  --ink-2:#b9c2e6;
  --ink-3:#8891b8;
  --line:rgba(140,160,255,.16);
  --line-2:rgba(140,160,255,.28);
  --violet:#7c5cff;
  --violet-2:#a78bfa;
  --cyan:#4fd8ff;
  --cyan-2:#8fe6ff;
  --gold:#ffd479;
  --gold-2:#ffe9a8;
  --pink:#ff8fc7;
  --glass:rgba(18,20,48,.62);
  --glass-2:rgba(26,28,62,.5);
  --shadow:0 18px 50px rgba(4,6,24,.55);
  --radius:22px;
  --radius-sm:14px;
  --max:1200px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei UI","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-title:"Source Han Serif SC","Noto Serif SC","Songti SC","STSong","SimSun",var(--font);
  --font-kai:"STKaiti","KaiTi","Kaiti SC","楷体",var(--font-title);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg-0);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(1200px 700px at 78% -8%, rgba(124,92,255,.28), transparent 62%),
    radial-gradient(900px 620px at 12% 6%, rgba(79,216,255,.16), transparent 60%),
    radial-gradient(1000px 800px at 50% 108%, rgba(255,212,121,.10), transparent 60%),
    linear-gradient(180deg,#04050f 0%,#080a1c 42%,#0a0b22 100%);
}
#starfield{position:fixed;inset:0;z-index:-1;display:block}
a{color:var(--cyan-2);text-decoration:none}
a:hover{color:#fff}
img{max-width:100%;display:block}
h1,h2,h3,h4{line-height:1.3;margin:0 0 .5em}
p{margin:0 0 1em}
.wrap{width:min(100% - 40px,var(--max));margin-inline:auto}
.muted{color:var(--ink-3)}
.small{font-size:13px}
.center{text-align:center}

/* ---------- 顶部导航 ---------- */
.nav{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(14px);
  background:linear-gradient(180deg,rgba(6,8,22,.88),rgba(6,8,22,.55));
  border-bottom:1px solid var(--line);
}
.nav-in{display:flex;align-items:center;gap:18px;height:66px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.5px;color:var(--ink)}
.brand:hover{color:#fff}
.brand-mark{width:38px;height:38px;flex:0 0 auto;filter:drop-shadow(0 0 10px rgba(124,92,255,.7))}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-txt b{font-size:16px}
.brand-txt span{font-size:11px;color:var(--ink-3);letter-spacing:1.4px}
.nav-links{display:flex;gap:6px;margin-left:auto;flex-wrap:wrap}
.nav-links a{
  padding:8px 14px;border-radius:999px;color:var(--ink-2);font-size:14.5px;
  border:1px solid transparent;transition:.22s;
}
.nav-links a:hover{color:#fff;background:rgba(124,92,255,.16);border-color:var(--line-2)}
.nav-links a.on{color:#fff;background:linear-gradient(135deg,rgba(124,92,255,.35),rgba(79,216,255,.22));border-color:var(--line-2)}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line-2);color:var(--ink);border-radius:12px;padding:8px 12px;font-size:16px}

/* ---------- 通用区块 ---------- */
section{padding:70px 0}
.sec-head{margin-bottom:34px}
.sec-kicker{
  font-size:12px;letter-spacing:3px;text-transform:uppercase;color:var(--cyan);
  display:flex;align-items:center;gap:10px;margin-bottom:10px;
}
.sec-kicker::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,transparent,var(--cyan))}
.sec-title{font-family:var(--font-title);font-size:clamp(24px,3.2vw,36px);font-weight:800;letter-spacing:1px}
.sec-title em{font-style:normal;background:linear-gradient(120deg,var(--cyan-2),var(--violet-2) 55%,var(--gold));-webkit-background-clip:text;background-clip:text;color:transparent}
.sec-desc{color:var(--ink-3);max-width:70ch}

.card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  backdrop-filter:blur(12px);
  padding:24px;
  position:relative;
  overflow:hidden;
}
.card::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(140deg,rgba(255,255,255,.07),transparent 42%);
}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:999px;font-weight:700;font-size:15px;
  border:1px solid var(--line-2);color:#fff;background:rgba(124,92,255,.18);
  transition:.22s;cursor:pointer;
}
.btn:hover{transform:translateY(-2px);background:rgba(124,92,255,.34);box-shadow:0 12px 30px rgba(124,92,255,.35)}
.btn.primary{background:linear-gradient(120deg,#7c5cff,#4fd8ff);border-color:transparent;color:#070a1c}
.btn.primary:hover{box-shadow:0 16px 34px rgba(79,216,255,.36)}
.btn.ghost{background:transparent}

.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;
  border:1px solid var(--line-2);color:var(--ink-2);background:rgba(10,14,40,.5);
}
.chip.cyan{border-color:rgba(79,216,255,.45);color:var(--cyan-2);background:rgba(79,216,255,.1)}
.chip.gold{border-color:rgba(255,212,121,.45);color:var(--gold-2);background:rgba(255,212,121,.1)}
.chip.pink{border-color:rgba(255,143,199,.45);color:#ffc3e2;background:rgba(255,143,199,.1)}
.chip.violet{border-color:rgba(167,139,250,.5);color:#d6c7ff;background:rgba(167,139,250,.12)}

/* ---------- 首页 Hero ---------- */
.hero{position:relative;padding:60px 0 40px;overflow:hidden}
.hero-in{display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;margin-bottom:18px}
.hero h1{
  font-family:var(--font-title);
  font-size:clamp(34px,5.6vw,62px);
  line-height:1.12;letter-spacing:2px;margin-bottom:16px;
}
.hero h1 .glow{
  background:linear-gradient(110deg,#fff,var(--cyan-2) 30%,var(--violet-2) 62%,var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 24px rgba(124,92,255,.5));
}
.hero-sub{color:var(--ink-2);font-size:clamp(15px,1.6vw,18px);max-width:52ch}
.hero-quote{
  font-family:var(--font-kai);color:var(--ink-3);border-left:2px solid var(--line-2);
  padding-left:14px;margin:22px 0;
}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.hero-stats{display:flex;gap:26px;margin-top:34px;flex-wrap:wrap}
.hero-stats b{display:block;font-size:26px;font-family:var(--font-title);color:#fff}
.hero-stats span{font-size:12.5px;color:var(--ink-3);letter-spacing:1px}
.hero-art{position:relative;display:grid;place-items:center}
.hero-art::before{
  content:"";position:absolute;width:78%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,rgba(124,92,255,.35),rgba(79,216,255,.12) 55%,transparent 72%);
  filter:blur(6px);
}
.hero-art > img{position:relative;width:min(100%,430px);filter:drop-shadow(0 20px 40px rgba(4,6,24,.7));animation:float 7s ease-in-out infinite}
.hero-ring{
  position:absolute;width:min(94%,470px);aspect-ratio:1;border-radius:50%;
  border:1px dashed rgba(140,160,255,.35);animation:spin 60s linear infinite;
}
.hero-ring::after{content:"";position:absolute;top:-5px;left:50%;width:10px;height:10px;border-radius:50%;background:var(--gold);box-shadow:0 0 14px var(--gold)}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
@keyframes spin{to{transform:rotate(360deg)}}

.scroll-hint{display:flex;justify-content:center;gap:8px;color:var(--ink-3);font-size:12.5px;letter-spacing:2px;margin-top:30px}
.scroll-hint i{display:block;width:1px;height:34px;background:linear-gradient(180deg,var(--cyan),transparent)}

/* ---------- 首页功能卡 ---------- */
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feat .card{padding:26px}
.feat .ico{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:22px;margin-bottom:14px;background:linear-gradient(140deg,rgba(124,92,255,.35),rgba(79,216,255,.18));border:1px solid var(--line-2)}
.feat h3{font-size:19px;font-family:var(--font-title)}
.feat p{color:var(--ink-3);font-size:14.5px;margin-bottom:0}

/* ---------- 天象预报专区 ---------- */
.forecast-top{display:grid;grid-template-columns:1.4fr .9fr;gap:20px;align-items:stretch}
.now-card{position:relative;overflow:hidden}
.now-card .moon-deco{position:absolute;right:-30px;top:-40px;width:210px;opacity:.5;pointer-events:none}
.now-title{font-family:var(--font-title);font-size:clamp(22px,2.6vw,30px);margin-bottom:6px}
.now-list{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:10px}
.now-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--ink-2)}
.now-list .d{flex:0 0 74px;color:var(--cyan-2);font-variant-numeric:tabular-nums;font-weight:700}
.countdown{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:18px 0 6px}
.countdown div{background:rgba(8,10,30,.6);border:1px solid var(--line);border-radius:14px;padding:10px 6px;text-align:center}
.countdown b{display:block;font-size:24px;font-variant-numeric:tabular-nums;color:#fff}
.countdown span{font-size:11.5px;color:var(--ink-3);letter-spacing:1px}

.toolbar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:26px 0 18px}
.toolbar .field{display:flex;align-items:center;gap:8px;background:rgba(8,10,30,.6);border:1px solid var(--line);border-radius:999px;padding:8px 14px}
.toolbar input,.toolbar select{
  background:transparent;border:0;color:var(--ink);font-family:var(--font);font-size:14px;outline:none;
}
.toolbar select option{background:#0b0e24}
.filters{display:flex;gap:8px;flex-wrap:wrap}
.filters button{
  cursor:pointer;font-family:var(--font);font-size:13px;padding:7px 14px;border-radius:999px;
  background:rgba(8,10,30,.55);border:1px solid var(--line);color:var(--ink-2);transition:.2s;
}
.filters button:hover{color:#fff;border-color:var(--line-2)}
.filters button.on{background:linear-gradient(120deg,rgba(124,92,255,.5),rgba(79,216,255,.35));color:#fff;border-color:transparent}

.month-rail{display:flex;gap:10px;overflow-x:auto;padding:6px 2px 14px;scrollbar-width:thin}
.month-rail button{
  flex:0 0 auto;cursor:pointer;font-family:var(--font);text-align:center;
  padding:10px 16px;border-radius:16px;background:rgba(8,10,30,.55);border:1px solid var(--line);
  color:var(--ink-2);transition:.2s;min-width:92px;
}
.month-rail button b{display:block;font-size:15px;color:#fff}
.month-rail button span{font-size:11px;letter-spacing:1px}
.month-rail button:hover{border-color:var(--line-2)}
.month-rail button.on{background:linear-gradient(140deg,rgba(124,92,255,.45),rgba(79,216,255,.25));border-color:transparent}
.month-rail button.today{box-shadow:0 0 0 1px rgba(255,212,121,.6) inset}

.month-panel{display:grid;grid-template-columns:1.35fr .75fr;gap:20px;align-items:start}
.month-head{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.month-head h3{font-family:var(--font-title);font-size:clamp(22px,2.6vw,30px);margin:0}
.month-quote{font-family:var(--font-kai);color:var(--ink-2);border-left:2px solid var(--line-2);padding-left:12px;margin:14px 0}
.ev-list{display:grid;gap:12px}
.ev{
  display:grid;grid-template-columns:96px 1fr;gap:16px;
  padding:16px;border-radius:var(--radius-sm);border:1px solid var(--line);
  background:linear-gradient(140deg,rgba(16,18,44,.72),rgba(10,12,32,.5));
  transition:.22s;
}
.ev:hover{border-color:var(--line-2);transform:translateX(3px)}
.ev-date{font-variant-numeric:tabular-nums;color:var(--cyan-2);font-weight:800;font-size:14px;line-height:1.5}
.ev-date span{display:block;color:var(--ink-3);font-weight:500;font-size:11.5px}
.ev h4{margin:0 0 4px;font-size:16.5px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.ev p{margin:0;color:var(--ink-2);font-size:14px}
.ev .tips{margin-top:8px;font-size:13px;color:var(--ink-3);border-top:1px dashed var(--line);padding-top:8px}

.side-block{margin-bottom:18px}
.side-block h4{font-size:14px;letter-spacing:2px;color:var(--cyan);text-transform:uppercase;margin-bottom:10px}
.kv{display:grid;gap:8px;font-size:14px;color:var(--ink-2)}
.kv div{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dashed var(--line);padding-bottom:6px}
.kv b{color:#fff;font-weight:600;font-variant-numeric:tabular-nums}
.planet-row{display:grid;grid-template-columns:64px 1fr;gap:10px;font-size:13.6px;color:var(--ink-2);padding:8px 0;border-bottom:1px dashed var(--line)}
.planet-row b{color:var(--gold-2)}
.mini-terms{display:flex;gap:8px;flex-wrap:wrap}

.timeline{position:relative;margin-top:10px;padding-left:22px}
.timeline::before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--cyan),var(--violet),transparent)}
.tl-item{position:relative;padding:0 0 18px 8px}
.tl-item::before{content:"";position:absolute;left:-21px;top:7px;width:10px;height:10px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold)}
.tl-item b{color:#fff}

/* 月相计算器 */
.moon-tool{display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:center}
.moon-dial{width:150px;height:150px;position:relative;flex:0 0 auto}
.moon-dial .disc{width:100%;height:100%;border-radius:50%;background:#0b0e24;border:1px solid var(--line-2);overflow:hidden;position:relative;box-shadow:inset 0 0 30px rgba(0,0,0,.7)}
.moon-dial .lit{position:absolute;inset:0;border-radius:50%;background:radial-gradient(circle at 35% 32%,#fffdf4,#e8e2c8 62%,#c9c1a6)}
.moon-dial .shadow{position:absolute;inset:0;border-radius:50%;background:#080a1c;transition:.3s}
.moon-meta{font-size:14.5px;color:var(--ink-2)}
.moon-meta b{color:#fff;font-size:19px;font-family:var(--font-title)}

/* ---------- 推文精选 ---------- */
.art-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px}
.art-card{display:flex;flex-direction:column;gap:12px;transition:.25s}
.art-card:hover{transform:translateY(-6px);border-color:var(--line-2)}
.art-cover{
  height:132px;border-radius:16px;position:relative;overflow:hidden;
  border:1px solid var(--line);display:grid;place-items:center;
}
.art-cover .glyph{font-size:40px;filter:drop-shadow(0 6px 14px rgba(0,0,0,.5))}
.art-cover .c1{position:absolute;inset:0;background:radial-gradient(120% 120% at 20% 0%,rgba(124,92,255,.55),transparent 60%)}
.art-cover .c2{position:absolute;inset:0;background:radial-gradient(100% 100% at 90% 100%,rgba(79,216,255,.45),transparent 60%)}
.art-meta{display:flex;gap:10px;align-items:center;font-size:12.5px;color:var(--ink-3);flex-wrap:wrap}
.art-card h3{font-size:18px;font-family:var(--font-title);margin:0}
.art-card p{font-size:14px;color:var(--ink-2);margin:0}
.art-points{margin:0;padding-left:18px;font-size:13.6px;color:var(--ink-3);display:grid;gap:4px}
.art-card .foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;font-size:13px}

/* ---------- 社娘页 ---------- */
.mascot-hero{display:grid;grid-template-columns:.85fr 1.15fr;gap:30px;align-items:center}
.mascot-figure{position:relative;display:grid;place-items:center}
.mascot-figure > img{width:min(100%,420px);animation:float 8s ease-in-out infinite;filter:drop-shadow(0 24px 44px rgba(4,6,24,.75))}
.name-plate{
  font-family:var(--font-title);font-size:clamp(30px,4.4vw,50px);letter-spacing:6px;
  background:linear-gradient(110deg,#fff,var(--cyan-2),var(--violet-2),var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.profile{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 22px;font-size:14.6px;color:var(--ink-2)}
.profile div{display:flex;gap:10px;border-bottom:1px dashed var(--line);padding-bottom:8px}
.profile b{color:var(--gold-2);flex:0 0 74px;font-weight:600}
.line-bubble{
  position:relative;background:linear-gradient(140deg,rgba(124,92,255,.24),rgba(79,216,255,.12));
  border:1px solid var(--line-2);border-radius:18px;padding:14px 18px;font-size:14.6px;color:#fff;
  margin-bottom:12px;
}
.line-bubble::before{content:"";position:absolute;left:22px;bottom:-8px;width:14px;height:14px;transform:rotate(45deg);background:rgba(124,92,255,.24);border-right:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
.gallery figure{margin:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:linear-gradient(160deg,rgba(16,18,44,.7),rgba(8,10,26,.6))}
.gallery figcaption{padding:10px 14px;font-size:13px;color:var(--ink-3);border-top:1px solid var(--line)}
.gallery .ph{aspect-ratio:1;display:grid;place-items:center;padding:10px}
.gallery .ph.light{background:linear-gradient(160deg,#ffffff,#e9eefb)}
.gallery .ph.light img{border-radius:12px;max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain}

/* ---------- 官方立绘 / 社徽 展示框 ---------- */
.art-frame{
  position:relative;border-radius:26px;padding:12px;
  background:linear-gradient(155deg,#ffffff 0%,#eef2fd 58%,#dfe6fa 100%);
  box-shadow:0 26px 60px rgba(4,6,24,.7),0 0 0 1px rgba(255,255,255,.55) inset,0 0 54px rgba(124,92,255,.3);
}
.art-frame img{border-radius:16px;display:block;width:100%;filter:none;animation:none}
.art-frame::before{
  content:"";position:absolute;inset:-18px;border-radius:42px;z-index:-1;
  background:radial-gradient(circle at 50% 42%,rgba(124,92,255,.42),rgba(79,216,255,.16) 55%,transparent 74%);
  filter:blur(6px);
}
.hero-art .art-frame{width:min(100%,390px);animation:float 7s ease-in-out infinite}
.mascot-figure .art-frame{width:min(100%,430px);animation:float 8s ease-in-out infinite}
.emblem-frame{max-width:420px;margin-inline:auto}
.brand-mark{width:40px;height:40px;flex:0 0 auto;object-fit:contain;border-radius:50%;
  box-shadow:0 0 0 1px rgba(255,255,255,.35),0 0 16px rgba(124,92,255,.5);}
.brand:hover .brand-mark{box-shadow:0 0 0 1px rgba(255,255,255,.6),0 0 22px rgba(79,216,255,.6)}

/* 时间线 / 活动 */
.acts{display:grid;gap:14px}
.act{display:grid;grid-template-columns:120px 1fr;gap:16px;padding:16px;border:1px solid var(--line);border-radius:var(--radius-sm);background:rgba(12,14,36,.55)}
.act .when{color:var(--cyan-2);font-weight:700;font-size:14px}
.act h4{margin:0 0 4px;font-size:16px}
.act p{margin:0;color:var(--ink-3);font-size:14px}

/* 加入我们 */
.join{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
.qa{border:1px solid var(--line);border-radius:var(--radius-sm);padding:14px 18px;margin-bottom:12px;background:rgba(10,12,32,.5)}
.qa summary{cursor:pointer;font-weight:700;color:#fff}
.qa p{margin:10px 0 0;color:var(--ink-2);font-size:14px}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--line);margin-top:50px;padding:40px 0 30px;background:linear-gradient(180deg,transparent,rgba(6,8,22,.7))}
.footer-in{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:26px}
.footer h4{font-size:14px;letter-spacing:2px;color:var(--cyan);margin-bottom:10px}
.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:7px;font-size:13.6px;color:var(--ink-3)}
.footer .copy{margin-top:26px;padding-top:18px;border-top:1px solid var(--line);font-size:12.6px;color:var(--ink-3);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}

/* 数据来源标注 */
.src-note{font-size:12.4px;color:var(--ink-3);margin-top:10px;line-height:1.7}
.src-note a{color:var(--ink-2);text-decoration:underline;text-decoration-color:var(--line-2)}

/* 弹窗 */
.modal{position:fixed;inset:0;z-index:90;display:none;place-items:center;padding:20px;background:rgba(3,4,14,.72);backdrop-filter:blur(6px)}
.modal.on{display:grid}
.modal-box{width:min(100%,740px);max-height:86vh;overflow:auto;background:linear-gradient(160deg,rgba(20,22,52,.98),rgba(10,12,32,.98));border:1px solid var(--line-2);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.modal-box h3{font-family:var(--font-title);font-size:22px;margin-bottom:8px}
.modal-close{position:sticky;top:0;float:right;background:none;border:1px solid var(--line-2);color:var(--ink);border-radius:999px;width:34px;height:34px;cursor:pointer}

.reveal{opacity:0;transform:translateY(24px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1000px){
  .hero-in{grid-template-columns:1fr;gap:8px}
  .hero-art{order:-1}
  .hero-art img{width:min(66%,300px)}
  .feat{grid-template-columns:1fr}
  .forecast-top,.month-panel,.join,.mascot-hero,.g2,.g3,.g4{grid-template-columns:1fr}
  .footer-in{grid-template-columns:1fr}
  .moon-tool{grid-template-columns:1fr;justify-items:center}
}
@media (max-width:720px){
  .nav-toggle{display:block}
  .nav-links{display:none;position:absolute;top:66px;left:0;right:0;flex-direction:column;background:rgba(6,8,22,.98);border-bottom:1px solid var(--line);padding:12px}
  .nav-links.open{display:flex}
  .ev{grid-template-columns:1fr}
  .act{grid-template-columns:1fr}
  .profile{grid-template-columns:1fr}
  section{padding:52px 0}
}
@media (prefers-reduced-motion:reduce){
  .hero-art img,.mascot-figure img,.hero-ring{animation:none}
  .reveal{opacity:1;transform:none;transition:none}
}

.moon-dial{display:grid;place-items:center}
.moon-dial svg{width:100%;height:auto;filter:drop-shadow(0 0 22px rgba(143,216,255,.25))}
.month-panel.single{grid-template-columns:1fr}

/* ---------- 推文档案（封面来自公众号原文） ---------- */
.art-archive{display:grid;grid-template-columns:repeat(auto-fill,minmax(228px,1fr));gap:18px}
.arc{padding:0;overflow:hidden;cursor:pointer;display:flex;flex-direction:column;transition:.22s}
.arc:hover{transform:translateY(-5px);border-color:var(--line-2);box-shadow:0 20px 44px rgba(4,6,24,.62)}
.arc-cover{position:relative;aspect-ratio:1/1;overflow:hidden;background:linear-gradient(150deg,#1a1c44,#0b0e24)}
.arc-cover img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.arc:hover .arc-cover img{transform:scale(1.04)}
.arc-badge{position:absolute;left:9px;top:9px;backdrop-filter:blur(6px);background:rgba(10,12,34,.72)!important}
.arc-body{padding:12px 14px 15px;display:grid;gap:7px}
.arc-body h4{font-size:14.6px;line-height:1.55;margin:0;font-family:var(--font);font-weight:600;color:#fff;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.arc-meta{display:flex;gap:8px;align-items:center;font-size:11.8px;color:var(--ink-3);flex-wrap:wrap}
.art-stat{font-size:13px;color:var(--ink-3)}

/* ==================== 手机端适配 ==================== */
@media (max-width:760px){
  :root{--radius:18px;--radius-sm:12px}
  html{-webkit-text-size-adjust:100%}
  body{line-height:1.78}
  .wrap{width:calc(100% - 28px)}

  /* ---- 导航 ---- */
  .nav-in{height:56px;gap:10px}
  .brand-mark{width:34px;height:34px}
  .brand-txt b{font-size:15px}
  .brand-txt span{font-size:9.5px;letter-spacing:1px}
  .nav-toggle{display:grid;place-items:center;width:40px;height:40px;padding:0;font-size:17px;line-height:1;border-radius:12px}
  .nav-links{display:none;position:absolute;top:56px;left:0;right:0;flex-direction:column;
    background:rgba(6,8,22,.985);border-bottom:1px solid var(--line);
    padding:8px 12px 14px;gap:2px;box-shadow:0 18px 40px rgba(0,0,0,.55)}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 14px;font-size:15px;border-radius:12px}

  /* ---- 通用节奏 ---- */
  section{padding:44px 0}
  .sec-head{margin-bottom:22px}
  .sec-title{font-size:clamp(22px,6.4vw,28px)}
  .sec-desc{font-size:14.4px}
  .sec-kicker{font-size:11px;letter-spacing:2.4px}
  .card{padding:18px}
  .btn{padding:11px 18px;font-size:14.5px}
  .chip{font-size:12px;padding:5px 10px}

  /* ---- 首页 hero：文字在前，立绘在后 ---- */
  .hero{padding:32px 0 24px}
  .hero-in{gap:18px}
  .hero-art{order:0}
  .hero-art .art-frame{width:min(62%,220px)}
  .hero h1{font-size:clamp(27px,8.4vw,38px);letter-spacing:1px}
  .hero-sub{font-size:14.6px}
  .hero-quote{font-size:13.4px;margin:14px 0;padding-left:12px}
  .hero-cta{gap:10px}
  .hero-cta .btn{flex:1 1 auto;justify-content:center}
  .hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 10px;margin-top:22px}
  .hero-stats b{font-size:22px}
  .hero-stats span{font-size:11.5px;letter-spacing:.5px}
  .scroll-hint{margin-top:16px;font-size:11.5px;gap:6px}
  .hero-badge{font-size:11.5px;padding:5px 10px}
  .feat .card{padding:20px}
  .feat h3{font-size:17px}

  /* ---- 天象预报 ---- */
  .now-title{font-size:20px}
  .now-list li{flex-direction:column;gap:2px;font-size:14px}
  .now-list .d{flex:none;font-size:13px}
  .countdown{gap:6px}
  .countdown div{padding:8px 3px;border-radius:11px}
  .countdown b{font-size:20px}
  .countdown span{font-size:10px;letter-spacing:.5px}
  .toolbar{margin:16px 0 14px;gap:8px}
  .toolbar .field{flex:1 1 100%;justify-content:space-between}
  .toolbar input,.toolbar select{width:100%;font-size:15px}
  .filters{gap:6px}
  .filters button{padding:9px 13px;font-size:12.6px}
  .month-rail{gap:8px;padding:4px 0 10px;scroll-snap-type:x proximity}
  .month-rail button{min-width:78px;padding:9px 12px;border-radius:14px;scroll-snap-align:start}
  .month-rail button b{font-size:14px}
  .month-head{gap:8px;margin-bottom:10px}
  .month-head h3{font-size:20px}
  .month-quote{font-size:13.8px;margin:12px 0}
  .ev{padding:14px;gap:8px}
  .ev-date{display:flex;align-items:baseline;gap:8px;font-size:13.5px;flex-wrap:wrap}
  .ev-date span{display:inline}
  .ev h4{font-size:15.5px;gap:6px}
  .ev p{font-size:13.8px}
  .ev .tips{font-size:12.6px}
  .ev:hover{transform:none}
  .moon-tool{gap:14px}
  .moon-dial{max-width:132px}
  .moon-meta{font-size:13.8px;text-align:center}
  .moon-meta b{font-size:17px}
  .kv div{font-size:13.4px;flex-wrap:wrap;gap:4px 10px}
  .kv b{font-size:13.4px}
  .planet-row{grid-template-columns:54px 1fr;font-size:13px;gap:8px}
  .side-block h4{font-size:12.5px}

  /* ---- 推文档案 ---- */
  .art-archive{grid-template-columns:repeat(2,1fr);gap:12px}
  .arc-body{padding:10px 11px 12px;gap:5px}
  .arc-body h4{font-size:13px;-webkit-line-clamp:3;line-height:1.5}
  .arc-meta{font-size:10.8px}
  .arc-badge{left:7px;top:7px;font-size:10.5px;padding:3px 8px}
  .art-stat{font-size:12.6px}

  /* ---- 社娘 / 关于 ---- */
  .name-plate{font-size:clamp(25px,7.4vw,32px);letter-spacing:2px}
  .mascot-figure .art-frame{width:min(78%,300px)}
  .profile{font-size:13.6px;gap:9px}
  .profile b{flex:0 0 66px;font-size:13.4px}
  .line-bubble{font-size:14px;padding:12px 14px}
  .gallery{grid-template-columns:repeat(2,1fr);gap:10px}
  .gallery figcaption{font-size:11.5px;padding:8px 10px}
  .acts{gap:10px}
  .act{padding:13px}
  .act .when{font-size:13px}
  .act h4{font-size:15px}
  .qa{padding:12px 14px}
  .qa summary{font-size:14.5px}
  .qa p{font-size:13.6px}
  .emblem-frame{max-width:280px}

  /* ---- 弹窗 / 页脚 ---- */
  .modal{padding:10px;align-items:end}
  .modal-box{padding:18px;max-height:88vh;border-radius:18px}
  .modal-box h3{font-size:18px}
  .footer{padding:30px 0 26px}
  .footer-in{gap:20px}
  .footer .copy{flex-direction:column;gap:6px;font-size:11.8px}
  .timeline{padding-left:18px}
  .tl-item{padding-bottom:14px}
}

@media (max-width:400px){
  .wrap{width:calc(100% - 24px)}
  .hero h1{font-size:25px}
  .brand-txt span{display:none}
  .nav-links a{padding:11px 12px;font-size:14.5px}
  .countdown b{font-size:18px}
  .art-archive{gap:10px}
  .arc-body h4{font-size:12.4px}
  .moon-dial{max-width:112px}
  .hero-art .art-frame{width:66%}
  .gallery{grid-template-columns:1fr}
  .modal{padding:6px}
  .modal-box{padding:14px}
  .hero-cta .btn{flex:1 1 100%}
}

/* 安全区（刘海屏 / 底部手势条） */
@supports (padding:max(0px)){
  .nav{padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}
  .footer{padding-bottom:max(26px,env(safe-area-inset-bottom))}
  .modal{border-radius:0}
}

/* 触摸设备：去掉 hover 位移，加按下反馈 */
@media (hover:none){
  .card:hover,.ev:hover,.arc:hover,.month-rail button:hover,.btn:hover{transform:none}
  .btn:active,.filters button:active,.nav-toggle:active{transform:scale(.96)}
  .filters button,.month-rail button,.nav-links a,.btn{-webkit-tap-highlight-color:transparent}
}

/* ==================== 手机端补充细节 ==================== */
@media (max-width:760px){
  /* 防止 iOS 聚焦输入框时自动放大 */
  input,select,textarea{font-size:16px}
  /* 长英文/链接自动换行，避免横向溢出 */
  body{overflow-wrap:anywhere}
  .src-note,.sec-desc,.ev p,.kv b{overflow-wrap:anywhere}
  /* 触控目标加大 */
  .filters button{padding:10px 14px}
  .nav-links a{min-height:44px;display:flex;align-items:center}
  /* 月份横向列表两端加渐隐，暗示可滑动 */
  .month-rail{position:relative;-webkit-mask-image:linear-gradient(90deg,transparent,#000 12px,#000 calc(100% - 12px),transparent);mask-image:linear-gradient(90deg,transparent,#000 12px,#000 calc(100% - 12px),transparent)}
  /* 卡片内边距与行距再收一点 */
  .card{border-radius:16px}
  .sec-head .sec-desc{max-width:none}
  /* 表单/搜索框占满整行 */
  .field{min-width:0}
  /* 弹窗内容滚动更顺滑 */
  .modal-box{-webkit-overflow-scrolling:touch}
  /* 页脚链接两列排布 */
  .footer ul{grid-template-columns:repeat(2,minmax(0,1fr));display:grid}
  .footer .copy{text-align:left}
}
@media (max-width:400px){
  .footer ul{grid-template-columns:1fr}
  .countdown b{font-size:17px}
  .countdown span{font-size:9.5px}
}

/* ---------- 推文详情弹窗：封面限高 + 底部常驻操作条 ---------- */
.modal-box{position:relative}
.modal-cover{width:100%;max-height:300px;object-fit:cover;border-radius:14px;margin:4px 0 14px;display:block;background:#0b0e24}
.modal-title{margin:12px 0 10px;font-size:21px;line-height:1.5}
.modal-actions{
  position:sticky;bottom:0;z-index:3;
  margin:18px -26px -26px;padding:14px 26px 18px;
  background:linear-gradient(180deg,rgba(16,18,44,0),rgba(16,18,44,.96) 42%);
  display:flex;gap:10px;flex-wrap:wrap;
}
.modal-actions .btn{flex:1 1 auto;justify-content:center}

/* ---------- 部门卡片：6 个 → 3×2 ---------- */
.dept-grid{display:grid;gap:14px;grid-template-columns:repeat(3,minmax(0,1fr))}
.dept-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:1000px){.dept-grid,.dept-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.dept-grid,.dept-grid.two{grid-template-columns:1fr}}

@media (max-width:760px){
  .modal-cover{max-height:32vh;border-radius:12px;margin-bottom:12px}
  .modal-actions{margin:16px -18px -18px;padding:12px 18px 16px}
  .modal-title{font-size:18px}
}