/* ============================================================
   迷彩青春 · 物理262班军训纪实
   ============================================================ */
:root{
  --army-950:#141b0e;
  --army-900:#1e2813;
  --army-800:#2b381d;
  --army-700:#3a4a26;
  --army-600:#4c5f31;
  --olive:#7d9155;
  --khaki:#cfc39a;
  --sand:#ece7d3;
  --paper:#f7f3e5;
  --ink:#252b18;
  --ink-sub:#666c4f;
  --red:#e03a2f;
  --red-deep:#b3261e;
  --gold:#f2c14e;
  --gold-deep:#c99b22;
  --hairline:rgba(37,43,24,.14);
}

*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue","Segoe UI",sans-serif;
  background:var(--sand);color:var(--ink);line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit}

/* ---------- 迷彩底纹 ---------- */
.camo{
  background-color:#54683a;
  background-image:
    radial-gradient(90px 60px at 12% 22%, #232d18 0 55%, transparent 60%),
    radial-gradient(130px 80px at 55% 10%, #39482a 0 50%, transparent 58%),
    radial-gradient(70px 90px at 82% 30%, #232d18 0 52%, transparent 58%),
    radial-gradient(110px 70px at 30% 62%, #6b7f49 0 48%, transparent 56%),
    radial-gradient(150px 90px at 70% 74%, #39482a 0 52%, transparent 58%),
    radial-gradient(80px 60px at 10% 85%, #6b7f49 0 45%, transparent 55%),
    radial-gradient(120px 100px at 92% 88%, #232d18 0 50%, transparent 58%),
    radial-gradient(60px 40px at 45% 42%, #2c3a20 0 55%, transparent 60%);
  background-size:460px 400px;
}

/* ---------- 顶部导航 ---------- */
.topnav{
  position:sticky;top:0;z-index:60;
  background:rgba(20,27,14,.86);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid rgba(242,193,78,.25);
}
.topnav-inner{
  max-width:1080px;margin:0 auto;padding:12px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.brand{
  color:var(--gold);font-weight:800;font-size:15px;letter-spacing:.06em;
  text-decoration:none;display:inline-flex;align-items:center;gap:8px;
  padding:8px 18px;border:1.5px solid rgba(242,193,78,.55);border-radius:999px;
  background:rgba(242,193,78,.12);
  transition:background .2s,border-color .2s,transform .2s,box-shadow .2s;
}
.brand:hover{
  background:rgba(242,193,78,.24);border-color:var(--gold);
  transform:translateY(-1px);box-shadow:0 4px 14px rgba(242,193,78,.28);
}
.brand .star{color:var(--red);text-shadow:0 0 10px rgba(224,58,47,.7);font-size:18px}
.links{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.links a{
  color:#d9d3b8;text-decoration:none;font-size:14px;font-weight:600;letter-spacing:.04em;
  padding:6px 2px;border-bottom:2px solid transparent;transition:color .2s,border-color .2s;
}
.links a:hover{color:var(--gold);border-color:var(--gold)}
.links .btn-photos{
  background:var(--red);color:#fff;border:none;border-radius:999px;
  padding:8px 18px;font-weight:700;box-shadow:0 3px 10px rgba(179,38,30,.45);
  transition:transform .15s,filter .2s;
}
.links .btn-photos:hover{filter:brightness(1.12);transform:translateY(-1px);border-color:transparent}
.links a.on{color:var(--gold);border-color:var(--gold)}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:88vh;
  display:flex;align-items:center;justify-content:center;text-align:center;
  overflow:hidden;
  background-size:cover;background-position:center 30%;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,27,14,.55) 0%,rgba(20,27,14,.35) 45%,rgba(20,27,14,.88) 100%);
}
.hero-inner{position:relative;z-index:2;padding:120px 24px 140px;max-width:900px}
.hero-badge{
  display:inline-block;color:var(--gold);border:1px solid rgba(242,193,78,.55);
  padding:6px 18px;border-radius:999px;font-size:13px;letter-spacing:.35em;font-weight:700;
  background:rgba(20,27,14,.35);
}
.hero-star{
  font-size:44px;color:var(--red);line-height:1;margin:26px 0 6px;
  text-shadow:0 0 18px rgba(224,58,47,.8),0 2px 0 rgba(0,0,0,.4);
}
.hero h1{
  color:#f6f1de;font-size:clamp(46px,9vw,92px);font-weight:900;letter-spacing:.14em;line-height:1.15;
  text-shadow:0 4px 0 rgba(0,0,0,.35),0 10px 30px rgba(0,0,0,.45);
}
.hero h1 span{
  display:block;margin-top:10px;
  font-size:clamp(16px,3vw,26px);font-weight:700;letter-spacing:.5em;color:var(--gold);
}
.hero-slogan{
  margin-top:22px;color:#e8e2c8;font-size:clamp(15px,2.4vw,19px);letter-spacing:.18em;font-weight:600;
}
.hero-btns{margin-top:36px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{
  display:inline-block;text-decoration:none;font-weight:800;letter-spacing:.08em;
  padding:14px 34px;border-radius:12px;font-size:16px;
  transition:transform .15s,box-shadow .2s,filter .2s;
}
.btn:active{transform:translateY(2px)}
.btn-gold{
  background:linear-gradient(180deg,var(--gold),var(--gold-deep));color:#2b2410;
  box-shadow:0 6px 16px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.5);
}
.btn-gold:hover{filter:brightness(1.06);transform:translateY(-2px)}
.btn-line{
  color:#efe9cf;border:2px solid rgba(239,233,207,.65);background:rgba(20,27,14,.25);
}
.btn-line:hover{border-color:var(--gold);color:var(--gold)}

/* ---------- 跑马灯口号 ---------- */
.marquee{
  position:absolute;left:0;right:0;bottom:0;z-index:3;overflow:hidden;
  background:rgba(20,27,14,.92);border-top:1px solid rgba(242,193,78,.35);
  padding:10px 0;
}
.marquee-track{
  display:inline-flex;white-space:nowrap;animation:marquee 26s linear infinite;
  color:var(--gold);font-weight:700;letter-spacing:.15em;font-size:14px;
}
.marquee-track span{padding:0 18px}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- 通用 Section ---------- */
.sec{padding:90px 24px}
.sec-inner{max-width:1080px;margin:0 auto}
.sec-head{text-align:center;margin-bottom:52px}
.sec-head .kicker{
  display:inline-flex;align-items:center;gap:10px;color:var(--gold-deep);
  font-size:13px;font-weight:800;letter-spacing:.4em;
}
.sec-head .kicker::before,.sec-head .kicker::after{content:"★";color:var(--red);letter-spacing:0}
.sec-head h2{font-size:clamp(30px,5vw,44px);font-weight:900;letter-spacing:.1em;margin-top:10px}
.sec-head p{color:var(--ink-sub);margin-top:12px;font-size:16px;letter-spacing:.06em}

/* ---------- 数据 ---------- */
.stats{padding:70px 24px 30px}
.stats-grid{
  max-width:1080px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
}
.stat{
  background:var(--paper);border:1px solid var(--hairline);border-top:4px solid var(--army-600);
  border-radius:14px;text-align:center;padding:30px 12px 24px;
  box-shadow:0 2px 10px rgba(37,43,24,.06);
}
.stat .num{font-size:clamp(30px,4.5vw,44px);font-weight:900;color:var(--army-700);line-height:1.1}
.stat .num i{font-style:normal;color:var(--red)}
.stat .label{margin-top:8px;font-size:14px;color:var(--ink-sub);letter-spacing:.1em}
@media (max-width:760px){.stats-grid{grid-template-columns:repeat(2,1fr)}}

/* ---------- 训练日常卡片 ---------- */
.daily{background:var(--paper)}
.daily-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px;max-width:1080px;margin:0 auto;
}
.dcard{
  background:#fff;border:1px solid var(--hairline);border-radius:16px;padding:30px 28px;
  position:relative;overflow:hidden;
  transition:transform .25s,box-shadow .25s;
}
.dcard::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--army-600),var(--olive),var(--army-600));
}
.dcard:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(37,43,24,.12)}
.dcard .icon{
  width:54px;height:54px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:26px;background:linear-gradient(145deg,var(--army-600),var(--army-800));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.2),0 4px 10px rgba(37,43,24,.25);
}
.dcard h3{margin-top:18px;font-size:20px;font-weight:800;letter-spacing:.08em}
.dcard h3 small{margin-left:8px;font-size:12px;color:var(--gold-deep);letter-spacing:.2em}
.dcard p{margin-top:10px;color:var(--ink-sub);font-size:14.5px}

/* ---------- 精彩瞬间 ---------- */
.strip{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 22px;-webkit-overflow-scrolling:touch;
}
.strip::-webkit-scrollbar{height:8px}
.strip::-webkit-scrollbar-thumb{background:var(--army-600);border-radius:99px}
.strip::-webkit-scrollbar-track{background:rgba(37,43,24,.08)}
.shot{
  flex:0 0 auto;width:min(360px,78vw);height:250px;border-radius:14px;overflow:hidden;
  scroll-snap-align:center;position:relative;border:1px solid var(--hairline);
  box-shadow:0 6px 18px rgba(37,43,24,.12);
}
.shot img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.shot:hover img{transform:scale(1.06)}
.shot figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:26px 16px 10px;
  background:linear-gradient(180deg,transparent,rgba(20,27,14,.85));
  color:#f0ead2;font-size:13px;letter-spacing:.06em;font-weight:600;
}
.strip-cta{text-align:center;margin-top:34px}

/* ---------- 新兵心声 ---------- */
.voices{background:var(--paper)}
.vwall{
  max-width:1080px;margin:0 auto;
  columns:3;column-gap:18px;
}
.vcard{
  break-inside:avoid;margin:0 0 18px;position:relative;
  background:#fff;border:1px solid var(--hairline);
  border-radius:4px 16px 16px 16px;
  padding:28px 24px 18px;
  box-shadow:0 4px 14px rgba(37,43,24,.08);
  rotate:-.5deg;
  transition:transform .25s,box-shadow .25s;
}
.vcard:nth-child(even){rotate:.6deg}
.vcard::before{
  content:"★";position:absolute;top:-12px;left:16px;
  color:var(--red);font-size:20px;line-height:1;
  text-shadow:0 2px 4px rgba(37,43,24,.25);
}
.vcard.gold{border-top:4px solid var(--gold)}
.vcard.olive{border-top:4px solid var(--army-600)}
.vcard.red{border-top:4px solid var(--red)}
.vcard:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(37,43,24,.15)}
.vq{font-size:15px;color:var(--ink)}
.vq::before{content:"❝ ";color:var(--gold-deep);font-size:20px;line-height:1}
.vq-big-card .vq{font-size:19px;font-weight:800;letter-spacing:.02em}
.vmeta{
  margin-top:14px;padding-top:10px;border-top:1px dashed var(--hairline);
  display:flex;justify-content:space-between;align-items:baseline;
}
.vmeta .who{font-weight:800;font-size:14px;color:var(--army-700);letter-spacing:.08em}
.vmeta .who::before{content:"— "}
.vmeta .day{font-size:12px;color:var(--ink-sub);letter-spacing:.15em}
.vfoot{
  max-width:1080px;margin:26px auto 0;text-align:center;
  color:var(--ink-sub);font-size:13px;letter-spacing:.1em;
}
@media (max-width:960px){.vwall{columns:2}}
@media (max-width:560px){.vwall{columns:1}}

/* ---------- 口号大字 ---------- */
.quote{color:#f2eddb;text-align:center;position:relative}
.quote::after{
  content:"";position:absolute;inset:0;background:rgba(20,27,14,.72);
}
.quote .sec-inner{position:relative;z-index:2}
.quote .q-star{color:var(--red);font-size:30px;text-shadow:0 0 16px rgba(224,58,47,.8)}
.quote h2{
  margin-top:16px;font-size:clamp(26px,5vw,48px);font-weight:900;letter-spacing:.18em;line-height:1.5;
  text-shadow:0 4px 0 rgba(0,0,0,.35);
}
.quote p{margin-top:18px;color:var(--khaki);letter-spacing:.3em;font-size:15px}
.quote .q-line{width:70px;height:3px;background:var(--gold);margin:26px auto 0}

/* ---------- 照片墙页头 ---------- */
.page-head{
  position:relative;color:#f4efdc;text-align:center;padding:74px 24px 66px;overflow:hidden;
}
.page-head::before{content:"";position:absolute;inset:0;background:rgba(20,27,14,.62)}
.page-head .ph-inner{position:relative;z-index:2}
.page-head .kicker{color:var(--gold);font-size:13px;letter-spacing:.4em;font-weight:700}
.page-head h1{
  margin-top:12px;font-size:clamp(34px,6vw,56px);font-weight:900;letter-spacing:.16em;
  text-shadow:0 4px 0 rgba(0,0,0,.35);
}
.page-head p{margin-top:12px;color:#ddd6b8;font-size:15px;letter-spacing:.08em}

/* ---------- 照片墙瀑布流 ---------- */
.masonry{
  max-width:1200px;margin:0 auto;padding:50px 24px 30px;
  columns:3;column-gap:18px;
}
.masonry figure{
  break-inside:avoid;margin:0 0 18px;position:relative;border-radius:14px;overflow:hidden;
  border:1px solid var(--hairline);box-shadow:0 4px 14px rgba(37,43,24,.1);
  cursor:zoom-in;background:#fff;transition:transform .25s,box-shadow .25s;
}
.masonry figure:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(37,43,24,.18)}
.masonry img{width:100%;height:auto}
.masonry figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:30px 14px 10px;
  background:linear-gradient(180deg,transparent,rgba(20,27,14,.85));
  color:#f0ead2;font-size:13px;letter-spacing:.05em;font-weight:600;
  opacity:0;transition:opacity .3s;
}
.masonry figure:hover figcaption{opacity:1}
@media (max-width:960px){.masonry{columns:2}}
@media (max-width:560px){.masonry{columns:1}}

/* ---------- 灯箱 ---------- */
.lb{
  position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;
  background:rgba(12,15,8,.94);
}
.lb.open{display:flex}
.lb-img-wrap{position:relative;max-width:92vw;text-align:center}
.lb-img-wrap img{
  max-width:92vw;max-height:82vh;border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,.6);
  margin:0 auto;
}
.lb-cap{margin-top:14px;color:#efe9cf;font-size:15px;letter-spacing:.06em;font-weight:600}
.lb-count{margin-top:4px;color:#9aa07c;font-size:13px}
.lb-btn{
  position:fixed;top:50%;transform:translateY(-50%);z-index:101;
  width:52px;height:52px;border-radius:50%;border:1px solid rgba(242,193,78,.5);
  background:rgba(20,27,14,.6);color:var(--gold);font-size:26px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:background .2s;
  user-select:none;
}
.lb-btn:hover{background:rgba(242,193,78,.25)}
.lb-prev{left:18px}
.lb-next{right:18px}
.lb-close{
  position:fixed;top:16px;right:20px;z-index:101;width:46px;height:46px;border-radius:50%;
  border:1px solid rgba(242,193,78,.5);background:rgba(20,27,14,.6);color:var(--gold);
  font-size:22px;cursor:pointer;display:flex;align-items:center;justify-content:center;
}
.lb-close:hover{background:rgba(224,58,47,.5)}

/* ---------- 页脚 ---------- */
.footer{
  background:var(--army-950);color:#b9b493;padding:60px 24px 46px;text-align:center;
  border-top:3px solid var(--army-600);
}
.footer .f-star{color:var(--red);font-size:22px;text-shadow:0 0 12px rgba(224,58,47,.7)}
.footer b{color:var(--gold);font-weight:800;letter-spacing:.1em}
.footer .slogan{margin-top:8px;letter-spacing:.15em;font-size:14px}
.footer .f-links{margin-top:22px;display:flex;gap:26px;justify-content:center;flex-wrap:wrap}
.footer .f-links a{color:#d9d3b8;text-decoration:none;font-size:14px}
.footer .f-links a:hover{color:var(--gold)}
.footer .fine{margin-top:26px;font-size:12px;color:#7c7a5e;letter-spacing:.08em}

@media (max-width:640px){
  .topnav .links a:not(.btn-photos){display:none}
  .sec{padding:64px 18px}
  .hero-inner{padding:96px 18px 130px}
}