@charset "utf-8";
/* =============================================================================
   秋海棠兵击俱乐部 — Academy Begonia
   深色 / 专业运动俱乐部。保留少量手稿式排版细节：衬线罗马数字、细分隔线、
   大字距全大写标签。不使用任何插图或装饰图形。
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root{
  --bg:#0a0a0b;
  --bg-soft:#0e0e10;
  --panel:#141416;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --line-strong:rgba(255,255,255,.22);
  --ink:#edebe5;
  --ink-dim:#a6a29a;
  --ink-faint:#6d6a64;
  --accent:#cf3a24;
  --accent-hi:#e8503a;
  --brass:#c9a45c;

  --sans:"Inter","Helvetica Neue",system-ui,-apple-system,"Segoe UI",
         "PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --serif:Georgia,"Times New Roman","Songti SC","Noto Serif SC",serif;

  --head-h:74px;
  --wrap:1240px;
  --pad:clamp(20px,5vw,56px);
  --sp:clamp(72px,10vw,152px);
}

/* ---------- 2. 基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font:400 22px/1.68 var(--sans);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:radial-gradient(1100px 520px at 70% -10%,rgba(207,58,36,.10),transparent 65%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--accent);color:#fff}

h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em;line-height:1.15}
h1{font-size:clamp(54px,6.6vw,104px);letter-spacing:-.02em}
h2{font-size:clamp(38px,4.1vw,62px);letter-spacing:-.015em}
h3{font-size:clamp(26px,2.2vw,34px)}
p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--pad);position:relative;z-index:1}

/* ---------- 3. 通用小件 ---------- */
.eyebrow{
  display:flex;align-items:center;gap:.7em;
  margin:0 0 22px;
  font:600 13.5px/1 var(--sans);
  letter-spacing:.24em;text-transform:uppercase;
  color:var(--accent);
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--accent);opacity:.9}
.lede{color:var(--ink-dim);font-size:clamp(19px,1.55vw,23px);line-height:1.85;max-width:62ch}
.tbd{color:var(--ink-faint);border-bottom:1px dashed var(--line-strong);padding-bottom:1px}

.btn{
  display:inline-flex;align-items:center;gap:.6em;
  padding:19px 34px;border:1px solid var(--line-strong);
  font:600 15px/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink);background:transparent;cursor:pointer;
  transition:background .18s,border-color .18s,color .18s;
}
.btn:hover{border-color:var(--ink);background:rgba(255,255,255,.05)}
.btn--fill{background:var(--accent);border-color:var(--accent);color:#fff}
.btn--fill:hover{background:var(--accent-hi);border-color:var(--accent-hi)}
.arw{transition:transform .18s}
.btn:hover .arw{transform:translateX(4px)}

/* ---------- 4. 页头 ---------- */
.masthead{
  position:sticky;top:0;z-index:50;
  background:rgba(10,10,11,.82);
  backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--line);
}
.masthead-inner{display:flex;align-items:center;gap:clamp(16px,3vw,44px);height:74px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{width:auto;height:42px;object-fit:contain;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font:600 18px/1.1 var(--sans);letter-spacing:.16em}
.brand-text i{
  font:400 11.5px/1 var(--sans);font-style:normal;
  letter-spacing:.24em;color:var(--ink-faint);margin-top:5px;
}
.nav{display:flex;gap:clamp(14px,1.9vw,30px);margin-left:auto}
.nav a{
  font:500 14.5px/1 var(--sans);letter-spacing:.08em;color:var(--ink-dim);
  padding:6px 0;position:relative;transition:color .16s;
}
.nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--accent);transition:right .22s}
.nav a:hover{color:var(--ink)}
.nav a:hover::after{right:0}
.head-right{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.lang{display:flex;border:1px solid var(--line)}
.lang button{padding:7px 11px;font:600 11px/1 var(--sans);letter-spacing:.08em;color:var(--ink-faint);transition:color .16s,background .16s}
.lang button[aria-pressed="true"]{color:var(--ink);background:rgba(255,255,255,.07)}
.head-cta{
  padding:14px 22px;border:1px solid var(--accent);
  font:600 13.5px/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);transition:background .18s,color .18s;
}
.head-cta:hover{background:var(--accent);color:#fff}
.nav-toggle{display:none;width:34px;height:34px;flex-direction:column;justify-content:center;gap:5px}
.nav-toggle span{display:block;height:1.5px;background:var(--ink)}

/* ---------- 5. Hero ---------- */
.hero{padding:clamp(64px,10vw,128px) 0 var(--sp);border-bottom:1px solid var(--line);position:relative}
.hero-grid{display:grid;grid-template-columns:1.45fr .55fr;gap:clamp(32px,6vw,80px);align-items:end}
.hero h1{margin:0 0 26px}
.hero h1 em{font-style:normal;color:transparent;-webkit-text-stroke:1px var(--ink-dim)}
.hero .lede{max-width:52ch;font-size:clamp(19px,1.6vw,23px)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:34px 0 18px}
.hero-note{font-size:15px;letter-spacing:.06em;color:var(--ink-faint);margin:0 0 42px}
.hero-meta{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1px;margin:0;border-top:1px solid var(--line);background:var(--line);
}
.hero-meta > div{background:var(--bg);padding:18px 0 0}
.hero-meta dt{
  font:600 12.5px/1 var(--sans);letter-spacing:.19em;text-transform:uppercase;
  color:var(--ink-faint);margin-bottom:10px;
}
.hero-meta dd{margin:0;font-size:18px;color:var(--ink)}

.hero-figure{margin:0;align-self:stretch;display:flex}
.hero-plate{
  flex:1;display:flex;flex-direction:column;justify-content:space-between;
  border:1px solid var(--line);padding:26px 24px 22px;min-height:260px;
  background:linear-gradient(180deg,rgba(255,255,255,.035),transparent 42%),var(--bg-soft);
}
.hero-plate-num{font:400 clamp(80px,9.6vw,132px)/.85 var(--serif);color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.30)}
.hero-plate-rule{display:block;height:1px;background:var(--line);margin:22px 0 16px}
.hero-plate-cap{margin:0;font:500 12.5px/1.9 var(--sans);letter-spacing:.22em;text-transform:uppercase;color:var(--ink-dim)}

/* ---------- 6. 章节通用 ---------- */
.section{padding:var(--sp) 0;border-bottom:1px solid var(--line)}
.section--tight{padding:calc(var(--sp) * .72) 0}
.section-title{max-width:760px;margin-bottom:clamp(34px,5vw,64px)}
.section-title h2{margin-bottom:18px}
.systems-head{max-width:820px;margin:0 auto clamp(34px,5vw,64px);text-align:center}
.systems-head .eyebrow{justify-content:center}
.systems-head .eyebrow::before{display:none}
.systems-head h2{margin-bottom:20px}
.systems-head .lede{margin:0 auto}

.two-col{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(28px,5vw,72px);align-items:start}
.cols3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(18px,2.4vw,32px)}

/* ---------- 7. 五门体系 ---------- */
.system{
  display:grid;grid-template-columns:220px minmax(0,1fr);
  gap:clamp(24px,4vw,64px);
  padding:clamp(34px,5vw,60px) 0;
  border-top:1px solid var(--line);
}
.system:first-child{border-top:0}
.sys-figure{
  margin:0;display:flex;flex-direction:column;justify-content:space-between;
  border:1px solid var(--line);padding:22px 20px 18px;min-height:220px;
  background:linear-gradient(180deg,rgba(255,255,255,.03),transparent 50%);
}
.sys-glyph{font:400 clamp(56px,5.4vw,76px)/1 var(--serif);color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.28)}
.sys-figure figcaption{
  font:600 11.5px/1.7 var(--sans);letter-spacing:.19em;text-transform:uppercase;
  color:var(--ink-faint);margin-top:auto;padding-top:18px;border-top:1px solid var(--line-soft);
}
.sys-text{max-width:66ch}
.sys-index{font:400 15.5px/1 var(--serif);letter-spacing:.3em;color:var(--accent);margin:0 0 14px}
.sys-title{display:flex;flex-wrap:wrap;align-items:baseline;gap:14px;margin-bottom:8px}
.sys-title h3{font-size:clamp(27px,2.6vw,37px)}
.orig{font:italic 400 17px/1 var(--serif);color:var(--ink-faint);letter-spacing:.02em}
.sys-era{
  font:600 12.5px/1 var(--sans);letter-spacing:.18em;text-transform:uppercase;
  color:var(--ink-faint);margin:0 0 24px;
}
.sys-text p{color:var(--ink-dim);font-size:19px;line-height:1.8}
.sys-src{
  margin-top:22px;padding-top:16px;border-top:1px solid var(--line-soft);
  font-size:15px;color:var(--ink-faint);letter-spacing:.02em;
}
.sys-src b{
  font:600 10px/1 var(--sans);letter-spacing:.2em;text-transform:uppercase;
  color:var(--ink-dim);margin-right:8px;
}

/* ---------- 8. 数据条 ---------- */
.figures{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;background:var(--line);margin-top:clamp(30px,4vw,52px);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.figures > div{background:var(--bg);padding:26px 20px 24px;display:flex;flex-direction:column;gap:8px}
.figures b{font:600 clamp(42px,4.4vw,60px)/1 var(--sans);letter-spacing:-.03em}
.figures span{font:600 12.5px/1.4 var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--ink-faint)}

/* ---------- 9. 正文 ---------- */
.prose p{color:var(--ink-dim);font-size:19px;line-height:1.85}
.dropcap::first-letter{float:left;font:400 3.1em/.86 var(--serif);padding:.06em .12em 0 0;color:var(--accent)}

/* ---------- 10. 教练 ---------- */
.coaches{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line)}
.coach{background:var(--bg);padding:30px 26px 32px}
.coach .role{font:600 10px/1 var(--sans);letter-spacing:.24em;text-transform:uppercase;color:var(--accent);margin:0 0 16px}
.coach h3{font-size:25px;margin-bottom:6px}
.coach .name{font:italic 400 16px/1 var(--serif);color:var(--ink-faint);margin:0 0 16px}
.coach p{color:var(--ink-dim);font-size:18px;line-height:1.82}

/* ---------- 11. 课表 ---------- */
.sched{width:100%;border-collapse:collapse;font-size:17px}
.sched caption{
  text-align:left;padding-bottom:16px;
  font:600 11.5px/1 var(--sans);letter-spacing:.2em;text-transform:uppercase;color:var(--ink-faint);
}
.sched th{
  text-align:left;padding:12px 14px;border-bottom:1px solid var(--line-strong);
  font:600 11.5px/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--ink-dim);
}
.sched td{padding:16px 14px;border-bottom:1px solid var(--line-soft);color:var(--ink-dim);vertical-align:top}
.sched tr:hover td{background:rgba(255,255,255,.025)}
.sched td:first-child{color:var(--ink);white-space:nowrap;font-weight:500}

/* ---------- 12. CTA ---------- */
.cta{
  padding:var(--sp) 0;border-bottom:1px solid var(--line);
  background:radial-gradient(900px 420px at 20% 0%,rgba(207,58,36,.10),transparent 60%),var(--bg-soft);
  text-align:center;
}
.cta h2{margin-bottom:18px}
.cta .lede{margin:0 auto 32px}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:12px}

/* ---------- 13. 页脚 ---------- */
.foot{background:var(--bg);padding:clamp(48px,7vw,80px) 0 26px}
.foot-grid{
  display:grid;grid-template-columns:1.4fr .8fr .9fr;
  gap:clamp(28px,4vw,64px);padding-bottom:44px;border-bottom:1px solid var(--line);
}
.foot-brand p{color:var(--ink-faint);font-size:16.5px;margin-top:18px;max-width:34ch}
.foot-col h4{font:600 11px/1 var(--sans);letter-spacing:.22em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 18px}
.foot-col ul{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.foot-col a,.foot-col li{font-size:16.5px;color:var(--ink-dim)}
.foot-col a:hover{color:var(--accent)}
.foot-base{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding-top:24px;font-size:14px;color:var(--ink-faint);letter-spacing:.04em;
}
.foot-base a:hover{color:var(--ink-dim)}

/* ---------- 14. 子页 ---------- */
.page-head{padding:clamp(56px,8vw,104px) 0 clamp(34px,5vw,64px);border-bottom:1px solid var(--line)}
.page-head h1{font-size:clamp(44px,5.4vw,80px);margin-bottom:20px}
.page-head .lede{max-width:60ch}
.rubric{font:600 12.5px/1 var(--sans);letter-spacing:.24em;text-transform:uppercase;color:var(--accent);margin:0 0 14px}
.tl{list-style:none;margin:0;padding:0;display:grid;gap:0}
.tl li{position:relative;padding:22px 0 22px 28px;border-left:1px solid var(--line)}
.tl li::before{content:"";position:absolute;left:-3.5px;top:30px;width:6px;height:6px;background:var(--accent);border-radius:50%}
.when{display:inline-block;font:600 10px/1 var(--sans);letter-spacing:.18em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:8px}
.wkn{
  display:inline-block;padding:5px 9px;margin-right:8px;border:1px solid var(--line);
  font:600 10px/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--ink-dim);
}

/* ---------- 15. 入场动画 ---------- */
.rv{opacity:0;transform:translateY(14px)}
.rv.in{opacity:1;transform:none;transition:opacity .62s ease,transform .62s cubic-bezier(.22,.61,.36,1)}

/* ---------- 16. 响应式 ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-figure{display:none}
  .system{grid-template-columns:1fr;gap:26px}
  .sys-figure{min-height:0;flex-direction:row;align-items:center;gap:18px;padding:16px 18px}
  .sys-figure figcaption{margin:0;padding:0;border:0}
  .two-col{grid-template-columns:1fr;gap:32px}
  .coaches{grid-template-columns:1fr}
  .cols3{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .masthead-inner{height:64px}
  .nav{
    position:fixed;inset:64px 0 auto;flex-direction:column;gap:0;margin-left:0;
    background:var(--bg);border-bottom:1px solid var(--line);
    padding:8px var(--pad) 20px;display:none;
  }
  .nav.open{display:flex}
  .nav a{padding:14px 0;border-bottom:1px solid var(--line-soft);font-size:15px}
  .nav a::after{display:none}
  .nav-toggle{display:flex}
  .head-cta{display:none}
  .hero-meta{grid-template-columns:1fr;gap:0}
  .hero-meta > div{padding:16px 0;border-bottom:1px solid var(--line-soft)}
  .figures{grid-template-columns:1fr 1fr}
  .sched{font-size:13px}
  .sched th,.sched td{padding:11px 8px}
  .foot-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none}
  *{transition-duration:.01ms!important;animation-duration:.01ms!important}
}


/* ---------- 17. 整屏分栏 ---------- */
.hero,
.chapter,
.section,
.page-head,
.cta,
.foot{
  min-height:calc(100svh - var(--head-h));
  display:flex;
  flex-direction:column;
  justify-content:center;
  box-sizing:border-box;
}
.system{
  min-height:calc(100svh - var(--head-h));
  align-content:center;
}
.hero{padding-top:clamp(56px,8vh,110px)}

/* 章节封面 */
.chapter{
  text-align:center;
  border-bottom:1px solid var(--line);
  padding:var(--sp) 0;
}
.chapter .systems-head{margin:0 auto}
.chapter h2{margin-bottom:22px}

/* 右侧进度点 */
.sn-nav{
  position:fixed;right:20px;top:50%;transform:translateY(-50%);
  z-index:40;display:flex;flex-direction:column;gap:10px;
  padding:10px 6px;
}
.sn-nav button{
  position:relative;width:22px;height:22px;display:grid;place-items:center;
  border:0;background:none;cursor:pointer;
}
.sn-nav button::before{
  content:"";width:5px;height:5px;border-radius:50%;
  background:rgba(255,255,255,.24);
  transition:background .22s,transform .22s;
}
.sn-nav button:hover::before{background:rgba(255,255,255,.55);transform:scale(1.35)}
.sn-nav button[aria-current="true"]::before{background:var(--accent);transform:scale(1.7)}
.sn-nav button::after{
  content:"";position:absolute;left:50%;top:100%;width:1px;height:10px;
  background:var(--line);transform:translateX(-50%);
}
.sn-nav button:last-child::after{display:none}

@media (max-width:820px){
  .sn-nav{display:none}
}

/* 触摸设备：原生滚动 + 吸附 */
@media (pointer:coarse){
  html{scroll-snap-type:y proximity;scroll-behavior:smooth}
  .hero,.chapter,.system,.section,.page-head,.cta,.foot{
    scroll-snap-align:start;
    scroll-snap-stop:always;
  }
}

/* 矮屏（笔记本横屏）里减小内边距，避免内容顶出屏幕 */
@media (max-height:760px){
  .hero,.chapter,.section,.page-head,.cta,.foot{padding-top:72px;padding-bottom:72px}
  .system{padding-top:72px;padding-bottom:72px}
  .hero h1{font-size:clamp(38px,5vw,64px)}
}

@media (max-width:760px){:root{--head-h:64px}}


/* ---------- 18. 水印与索引 ---------- */
.system{position:relative;overflow:hidden}
.system::before{
  content:attr(data-num);
  position:absolute;right:-.04em;top:50%;transform:translateY(-50%);
  font:400 clamp(200px,30vw,420px)/1 var(--serif);
  color:#fff;opacity:.03;pointer-events:none;user-select:none;
  z-index:0;
}
.system > *{position:relative;z-index:1}

.chapter-list{
  display:flex;justify-content:center;flex-wrap:wrap;
  gap:clamp(16px,3vw,54px);margin-top:clamp(32px,5vh,56px);
}
.chapter-list a{
  display:flex;align-items:baseline;gap:10px;
  padding-top:13px;border-top:1px solid var(--line);
  font:600 12px/1 var(--sans);letter-spacing:.19em;text-transform:uppercase;
  color:var(--ink-faint);transition:color .2s,border-color .2s;
}
.chapter-list a b{font:400 16px/1 var(--serif);letter-spacing:0;color:var(--accent)}
.chapter-list a:hover{color:var(--ink);border-color:var(--line-strong)}

/* 矮屏（1080p 以下 / 笔记本）压缩首屏，避免内容顶出一屏 */
@media (max-height:940px){
  .hero{padding-top:clamp(40px,5vh,72px);padding-bottom:clamp(40px,5vh,72px)}
  .hero h1{font-size:clamp(44px,5.2vw,74px);margin-bottom:20px}
  .hero .lede{font-size:clamp(17px,1.4vw,20px)}
  .hero-actions{margin:24px 0 12px}
  .hero-note{margin-bottom:24px}
  .hero-meta > div{padding:14px 0 0}
  .chapter{padding-top:clamp(40px,6vh,72px);padding-bottom:clamp(40px,6vh,72px)}
  .chapter-list{margin-top:clamp(24px,4vh,40px)}
}
/* 更矮的屏（1366x768 一类）：整体收一档 */
@media (max-height:820px){
  .section{padding-top:clamp(32px,4.5vh,56px);padding-bottom:clamp(32px,4.5vh,56px)}
  .section-title{margin-bottom:clamp(22px,3vh,36px)}
  h2{font-size:clamp(30px,3.4vw,46px)}
  .prose p{font-size:17px;line-height:1.8}
  .figures{margin-top:clamp(20px,3vh,32px)}
  .figures > div{padding:18px 16px 16px}
  .figures b{font-size:clamp(30px,3.4vw,42px)}
  .coach{padding:22px 20px 24px}
  .coach p{font-size:16px}
}
/* ---------- 19. 开放时间 ---------- */
.hours{list-style:none;margin:26px 0 0;padding:0;border-top:1px solid var(--line)}
.hours li{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:16px 0;border-bottom:1px solid var(--line-soft)}
.hours li span{font:600 11.5px/1 var(--sans);letter-spacing:.18em;text-transform:uppercase;color:var(--ink-faint)}
.hours li b{font:600 21px/1 var(--sans);color:var(--ink);letter-spacing:-.01em}
.hours li.off b{color:var(--ink-faint);font-size:17px;font-weight:500}