*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
svg{width:1em;height:1em;flex-shrink:0;vertical-align:middle}
:root{
  --green:#2B3A5C;
  --green-light:#D4A017;
  --green-50:#F0F2F6;
  --green-100:#C5CED9;
  --green-200:#8FA3BF;
  --dark:#1E2A45;
  --text:#333333;
  --text2:#666666;
  --text3:#999999;
  --border:#E0E0E0;
  --bg:#F8F9FA;
  --white:#ffffff;
  --font:'Inter',-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;
  --mono:'JetBrains Mono',monospace;
  --gold:#F4B942;
  --gold-dark:#D4A017;
  --red:#C41E3A;
  --navy:#2B3A5C;
  --blue:#2B3A5C;
  --blue-light:#D4A017;
  --blue-50:#F0F2F6;
  --blue-100:#C5CED9;
  --contact-banner-height:30px;
}
html{scroll-behavior:smooth;scroll-padding-top:calc(150px + var(--contact-banner-height));-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:Georgia,'Times New Roman','Noto Serif SC',serif}
body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:15px;line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ===== HEADER ===== */
.header{position:fixed;top:var(--contact-banner-height);left:0;right:0;z-index:1000;height:60px;background:var(--white);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.logo{display:flex;align-items:center;gap:10px}
.logo-icon{width:36px;height:36px;border-radius:50%;background:none;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.logo-img{height:40px;width:auto;display:block;flex-shrink:0;background:#fff;padding:4px;border-radius:8px;box-shadow:0 1px 3px rgba(0,0,0,.1)}
.logo-text{font-weight:700;font-size:15px;color:var(--text);display:flex;flex-direction:column;line-height:1.2}
.logo-text span{color:var(--green)}
.logo-main{font-family:Georgia,'Times New Roman',serif;font-size:15px;font-weight:700;color:var(--dark)}
.logo-sub{font-size:14px;color:var(--text3);font-weight:500;letter-spacing:.5px}
.nav{display:flex;align-items:center;gap:4px}
.nav a{padding:6px 16px;border-radius:8px;font-size:14px;font-weight:500;color:var(--text2);transition:all .15s}
.nav a:hover{color:var(--text);background:var(--green-50)}
.nav a.active{color:var(--green);background:var(--green-50)}
.header-btn{padding:7px 18px;border-radius:8px;font-size:13px;font-weight:600;color:#fff;background:var(--green);transition:all .2s}
.header-btn:hover{background:#1E2A45;transform:translateY(-1px)}
.header-btns{display:flex;align-items:center;gap:8px}
.header-btn.outline{background:transparent;color:var(--green);border:1.5px solid var(--green-100)}
.header-btn.outline:hover{background:var(--green-50);border-color:var(--green)}

/* ===== LEVEL BAR ===== */
.level-bar{position:sticky;top:calc(60px + var(--contact-banner-height));z-index:100;background:#2B3A5C;border-bottom:none}
.level-bar-inner{display:flex;align-items:center;gap:4px;max-width:1200px;margin:0 auto;padding:10px 16px;overflow-x:auto;scrollbar-width:none}
.level-bar-inner>a{white-space:nowrap;display:inline-flex;align-items:center;padding:5px 10px;border-radius:20px;font-size:13px;font-weight:600;color:rgba(255,255,255,.6);background:transparent;border:1.5px solid transparent;transition:all .15s;flex-shrink:0}
.level-bar-inner>a:not(.lpill){color:#2B3A5C;background:#fff;border-color:transparent;font-weight:700}
.level-bar-inner::-webkit-scrollbar{display:none}
.level-bar .label{font-size:12px;font-weight:600;color:rgba(255,255,255,.5);letter-spacing:.5px;flex-shrink:0;margin-right:6px}
.lpill{padding:5px 10px;border-radius:20px;font-size:13px;font-weight:600;color:rgba(255,255,255,.6);background:transparent;border:1.5px solid transparent;transition:all .15s;white-space:nowrap;flex-shrink:0}
.lpill:hover{color:#fff;border-color:rgba(255,255,255,.2);background:rgba(255,255,255,.08)}
.lpill.active{color:#2B3A5C;background:#fff;border-color:transparent;font-weight:700}
.lpill.hot{color:#F4B942;border-color:rgba(244,185,66,.3);background:rgba(244,185,66,.1)}
.lpill.more{color:#F4B942;border-color:rgba(244,185,66,.3);background:rgba(244,185,66,.1);font-size:12px}

/* ===== BANNERS (AMC8 style) ===== */
.hero-banner{background:#B91C1C;margin-bottom:0;margin-top:calc(60px + var(--contact-banner-height));display:flex;justify-content:center;align-items:center;position:relative;z-index:2}
.hero-banner picture{max-width:900px;width:100%}
.hero-banner img{max-width:100%;height:auto;display:block}
.year-page-banner{max-width:900px;margin:0 auto;padding:16px 0}
.year-page-banner img{width:100%;height:auto;border-radius:0;display:block}

/* ===== MOBILE BANNER (CSS-only, replaces image on mobile) ===== */
.mobile-banner{display:none;background:#B91C1C;padding:32px 20px 20px;position:relative;overflow:hidden;text-align:center}
.mb-sub{font-size:12px;color:rgba(255,255,255,.7);margin-bottom:4px;font-weight:500}
.mb-title{font-size:clamp(20px,4vw,28px);font-weight:800;color:#fff;margin:0 0 8px;line-height:1.2}
.mb-yellow{display:inline-block;background:#F4B942;color:#8B1A1A;font-size:12px;font-weight:700;padding:6px 14px;border-radius:4px;margin-bottom:16px}
.mb-cards{display:flex;gap:12px;overflow-x:auto;justify-content:center}
.mb-card{background:#fff;border-radius:12px;padding:12px 8px;min-width:90px;text-align:center;flex:1}
.mb-num{font-size:clamp(20px,3.5vw,28px);font-weight:800;color:#B91C1C;line-height:1.2}
.mb-num span{font-size:12px;font-weight:600}
.mb-label{font-size:11px;color:#333;margin-top:4px;font-weight:600}
@media(max-width:768px){
  .hero-banner,.year-page-banner{padding:0;margin-top:0}
  .hero-banner picture,.year-page-banner picture{display:none}
  .hero-banner .mobile-banner,.year-page-banner .mobile-banner{display:block}
}

/* ===== HERO (centered, no QR) ===== */
.hero{background:linear-gradient(180deg,#E8ECF2 0%,var(--green-50) 40%,#fff 100%);padding:calc(40px + var(--contact-banner-height)) 0 88px;position:relative;text-align:center}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse 80% 60% at 50% 30%,rgba(212,160,23,.08),transparent);pointer-events:none}
.hero-grid{max-width:720px;margin:0 auto;position:relative;z-index:1}
.hero-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px 4px 6px;border-radius:20px;background:var(--green-50);border:1px solid var(--green-100);font-size:12px;font-weight:600;color:var(--green);margin-bottom:24px}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--green-light)}
.hero-title{font-size:clamp(30px,5vw,52px);font-weight:800;line-height:1.15;letter-spacing:-1.5px;color:var(--dark);margin-bottom:20px}
.hero-title em{font-style:normal;color:#D4A017}
.hero-desc{font-size:16px;line-height:1.8;color:var(--text2);margin-bottom:36px;max-width:600px;margin-left:auto;margin-right:auto}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:44px;justify-content:center}
.btn-green{padding:14px 32px;border-radius:10px;font-size:14px;font-weight:600;color:#fff;background:var(--green);transition:all .2s;display:inline-block;text-align:center}
.btn-green:hover{background:#1E2A45;transform:translateY(-1px);box-shadow:0 4px 12px rgba(43,58,92,.25)}
.btn-outline{padding:14px 32px;border-radius:10px;font-size:14px;font-weight:600;color:var(--green);background:var(--white);border:1.5px solid var(--green-100);transition:all .2s;display:inline-block;text-align:center}
.btn-outline:hover{border-color:var(--green);background:var(--green-50)}
.hero-stats{display:flex;gap:40px;justify-content:center}
.hero-stat strong{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--dark);display:block;margin-bottom:2px}
.hero-stat strong em{font-style:normal;color:#F4B942}
.hero-stat span{font-size:12px;color:var(--text3)}
.qr-card{background:var(--white);border-radius:20px;padding:32px;text-align:center;box-shadow:0 4px 24px rgba(15,23,42,.08),0 1px 3px rgba(15,23,42,.04)}
.qr-card img{width:180px;height:180px;border-radius:12px;margin:0 auto 16px;border:1px solid var(--border)}
.qr-card h4{font-size:15px;font-weight:700;color:var(--dark);margin-bottom:6px}
.qr-card p{font-size:12px;color:var(--text3);line-height:1.6}

/* ===== SECTION COMMON ===== */
.section{padding:96px 0}
#levels{background:var(--green-50)}
#archive{background:linear-gradient(180deg,#fff 0%,#F0F2F6 100%)}
#resources{background:var(--green-50)}
#guide{background:#fff}
.section-head{text-align:center;max-width:560px;margin:0 auto 56px}
.section-head .tag{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:2px;color:#D4A017;margin-bottom:10px}
.section-head h2{font-size:clamp(26px,3.5vw,36px);font-weight:800;line-height:1.3;color:var(--dark);margin-bottom:12px}
.section-head h1{font-size:clamp(26px,3.5vw,36px);font-weight:800;line-height:1.3;color:var(--dark);margin-bottom:12px;margin-top:0}
.section-head p{font-size:16px;color:var(--text2);line-height:1.8}

/* ===== STATS STRIP ===== */
.stats{background:var(--white);border-bottom:1px solid var(--border);padding:22px 0}
.stats-inner{display:flex;justify-content:center;gap:48px;flex-wrap:wrap}
.stats-inner div{font-size:13px;color:var(--text2);font-weight:500;display:flex;align-items:center;gap:6px}
.stats-inner svg{color:var(--green);flex-shrink:0}

/* ===== LEVEL CARDS (responsive grid) ===== */
.level-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.lcard{background:#2B3A5C;border:1px solid rgba(255,255,255,.1);border-radius:16px;overflow:hidden;transition:all .2s;display:flex;flex-direction:column;min-width:0}
.lcard:hover{border-color:rgba(244,185,66,.4);box-shadow:0 8px 24px rgba(43,58,92,.25);transform:translateY(-3px)}
.lcard.top{border:2px solid #F4B942}
.lcard.top .lcard-bar{height:3px;background:linear-gradient(90deg,#F4B942,#D4A017)}
.lcard-bar{height:0}
.lcard-head{padding:24px 24px 14px;display:flex;align-items:flex-start;justify-content:space-between}
.lcard-level{font-family:var(--mono);font-size:28px;font-weight:700;color:#fff;line-height:1}
.lcard.top .lcard-level{color:#F4B942}
.lcard-tag{padding:3px 10px;border-radius:12px;font-size:11px;font-weight:700}
.lcard-tag.new{color:#F4B942;background:rgba(244,185,66,.12);border:1px solid rgba(244,185,66,.3)}
.lcard-tag.hot{color:#F4B942;background:rgba(244,185,66,.12)}
.lcard-tag.std{color:rgba(255,255,255,.5);background:rgba(255,255,255,.08)}
.lcard-body{padding:0 24px 20px;flex:1 1 auto}
.lcard-body h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:6px}
.lcard-body .desc{font-size:12px;color:rgba(255,255,255,.55);line-height:1.6;margin-bottom:16px}
.lcard-pills{display:flex;flex-wrap:wrap;gap:8px}
.lcard-pills span{padding:4px 12px;background:rgba(255,255,255,.1);border-radius:6px;font-size:11px;color:rgba(255,255,255,.7);font-weight:500}
.lcard-foot{padding:14px 24px;background:rgba(0,0,0,.15);border-top:1px solid rgba(255,255,255,.08);display:flex;align-items:center;justify-content:space-between;flex-shrink:0}
.lcard-foot .meta{font-size:12px;color:rgba(255,255,255,.5)}
.lcard-foot .meta strong{color:#fff;font-weight:600}
.lcard-foot .arrow{font-size:12px;font-weight:600;color:#F4B942}

/* ===== INLINE CTA ===== */
.inline-cta{margin:48px 0;background:var(--white);border:1px solid var(--green-100);border-radius:16px;padding:32px 36px;display:flex;align-items:center;justify-content:space-between;gap:32px;box-shadow:0 2px 12px rgba(43,58,92,.04)}
.inline-cta h4{font-size:16px;font-weight:700;color:var(--dark);margin-bottom:4px}
.inline-cta p{font-size:13px;color:var(--text2);line-height:1.7}

/* ===== ARCHIVE (uniform grid) ===== */
.agrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.acell{background:var(--white);border:1.5px solid var(--border);border-radius:12px;padding:20px 10px;text-align:center;transition:all .2s;cursor:pointer;display:block}
.acell:hover{border-color:var(--green);box-shadow:0 4px 12px rgba(43,58,92,.08);transform:translateY(-2px)}
.acell .yr{font-family:var(--mono);font-size:17px;font-weight:700;color:var(--dark);display:block;margin-bottom:4px}
.acell .info{font-size:10px;color:var(--text3)}
.acell.latest{border-color:#D4A017;background:var(--green-50)}
.acell.latest .yr{color:#D4A017}
.acell.latest::after{content:"NEW";display:block;font-size:9px;font-weight:700;color:#D4A017;margin-top:4px}
.acell.featured .yr{color:#2B3A5C}
.acell.current{border-color:var(--green);background:var(--green-50);position:relative}
.acell.current .yr{color:var(--green)}
.acell.current::after{content:"当前";display:block;font-size:9px;font-weight:700;color:var(--green);margin-top:4px}
body[data-lang="en"] .acell.current::after{content:"Current"}

/* ===== RESOURCES (bento grid) ===== */
.rgrid{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:auto;gap:24px}
.rgrid .rcard:first-child{grid-row:span 2}
.rcard{background:var(--white);border:1px solid var(--border);border-radius:16px;padding:32px 24px;transition:all .2s}
.rcard:hover{border-color:var(--green-100);box-shadow:0 8px 24px rgba(43,58,92,.06);transform:translateY(-3px)}
.rcard-icon{width:48px;height:48px;border-radius:12px;background:#2B3A5C;color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:20px}
.rcard h3{font-size:15px;font-weight:700;color:var(--dark);margin-bottom:6px}
.rcard p{font-size:12px;color:var(--text3);line-height:1.7;margin-bottom:16px}
.rcard .link{font-size:12px;font-weight:600;color:var(--green)}

/* ===== GUIDE (horizontal flow) ===== */
.ggrid{display:flex;gap:0;align-items:flex-start;position:relative}
.ggrid .gcard{flex:1;position:relative;border-radius:16px 16px 0 0}
.ggrid .gcard:not(:last-child)::after{content:"";position:absolute;right:-14px;top:38px;width:28px;height:2px;background:var(--green-100);z-index:1}
.gcard{background:var(--white);border:1px solid var(--border);border-radius:16px;padding:28px;display:flex;gap:20px;transition:all .2s}
.gcard:hover{border-color:var(--green-100);box-shadow:0 4px 16px rgba(43,58,92,.05);transform:translateY(-2px)}
.gcard-num{width:48px;height:48px;border-radius:12px;background:#2B3A5C;color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-weight:700;font-size:15px;flex-shrink:0}
.gcard h3{font-size:15px;font-weight:700;color:var(--dark);margin-bottom:6px}
.gcard p{font-size:12px;color:var(--text3);line-height:1.7}

/* ===== CTA BANNER ===== */
.cta{background:var(--dark);padding:96px 0;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;width:400px;height:400px;border-radius:50%;background:rgba(212,160,23,.06);top:-100px;right:-50px}
.cta-grid{display:grid;grid-template-columns:1fr auto;gap:56px;align-items:center;position:relative;z-index:1}
.cta h2{font-size:clamp(22px,3vw,32px);font-weight:800;color:#fff;line-height:1.3;margin-bottom:16px}
.cta-desc{font-size:15px;color:rgba(255,255,255,.55);line-height:1.8;margin-bottom:32px}
.cta-checks{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:36px;list-style:none}
.cta-checks li{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.8)}
.cta-checks svg{color:#F4B942;flex-shrink:0}
.cta-qr{background:var(--white);border-radius:20px;padding:28px;text-align:center}
.cta-qr img{width:160px;height:160px;border-radius:12px;margin:0 auto 14px;border:1px solid var(--border)}
.cta-qr .t1{font-size:14px;font-weight:700;color:var(--dark)}
.cta-qr .t2{font-size:11px;color:var(--text3);margin-top:4px}

/* ===== EXAM INTRO ===== */
#about{background:var(--white)}
.intro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:48px}
.intro-card{background:var(--green-50);border:1px solid var(--green-100);border-radius:16px;padding:28px 24px}
.intro-card h3{font-size:14px;font-weight:700;color:var(--green);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.intro-card h3 .ic{width:32px;height:32px;border-radius:8px;background:#2B3A5C;color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}
.intro-card ul{list-style:none;font-size:13px;color:var(--text);line-height:2}
.intro-card ul li{display:flex;align-items:baseline;gap:6px}
.intro-card ul li::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--green-light);flex-shrink:0;margin-top:2px}
.award-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.award-card{background:var(--white);border:1px solid var(--border);border-radius:16px;padding:28px 24px;text-align:center;transition:all .2s}
.award-card:hover{border-color:var(--green-100);box-shadow:0 4px 16px rgba(43,58,92,.05);transform:translateY(-2px)}
.award-card .medal{font-size:32px;margin-bottom:12px}
.award-card h4{font-size:14px;font-weight:700;color:var(--dark);margin-bottom:4px}
.award-card .en{font-size:11px;color:var(--green);font-weight:600;margin-bottom:8px}
.award-card p{font-size:12px;color:var(--text3);line-height:1.7}

/* ===== FOOTER ===== */
.footer{background:#1E2A45;color:rgba(255,255,255,.45);padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo .logo-text{color:#fff}
.footer-brand p{font-size:12px;line-height:1.8;max-width:260px}
.footer h4{font-size:12px;font-weight:700;color:#fff;margin-bottom:16px;text-transform:uppercase;letter-spacing:1px}
.footer ul{list-style:none}
.footer li{margin-bottom:8px}
.footer li a{font-size:12px;color:rgba(255,255,255,.4);transition:color .15s}
.footer li a:hover{color:#fff}
.footer-contact{text-align:center;padding:20px 0;border-top:1px solid rgba(255,255,255,.08);margin-bottom:16px;font-size:13px;color:rgba(255,255,255,.6)}
.footer-contact svg{vertical-align:middle;margin-right:4px;color:var(--gold)}
.footer-contact a{font-family:var(--mono);font-weight:700;color:var(--gold);text-decoration:none;margin-left:4px}
.footer-contact a:hover{text-decoration:underline}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding-top:20px;display:flex;justify-content:center;align-items:center;font-size:11px;overflow-wrap:break-word;word-break:break-all;white-space:normal;max-width:100%}
.footer-bottom span,.footer-bottom a{overflow-wrap:break-word;word-break:break-all;white-space:normal}
.footer-bottom .domain{color:#F4B942;font-weight:600}

/* ===== FLOATING ===== */
.fab-group{position:fixed;bottom:24px;right:24px;z-index:2000;display:flex;flex-direction:column;gap:10px}
.fab{width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .2s;border:none;cursor:pointer;box-shadow:0 4px 12px rgba(0,0,0,.12)}
.fab:hover{transform:scale(1.08)}
.fab-wechat{background:#07c160;color:#fff}
.fab-green{background:var(--green);color:#fff}
.fab-top{background:var(--white);color:var(--text2);border:1px solid var(--border);display:none}
.fab-top.show{display:flex}

/* ================================================================
   YEAR PAGE SPECIFIC STYLES
   ================================================================ */

/* ===== BREADCRUMB ===== */
.breadcrumb{background:var(--white);border-bottom:1px solid var(--border);padding:12px 0;margin-top:calc(60px + var(--contact-banner-height))}
.breadcrumb-inner{font-size:13px;color:var(--text3);max-width:1200px;margin:0 auto;padding:0 24px}
.breadcrumb-inner a{color:var(--green);font-weight:500;transition:color .15s}
.breadcrumb-inner a:hover{color:#1E2A45}
.breadcrumb-inner .sep{margin:0 8px;color:var(--text3)}

/* ===== YEAR NAV (top/bottom prev/next) ===== */
.year-nav{background:var(--white);border-bottom:1px solid var(--border)}
.year-nav-inner{display:flex;align-items:center;justify-content:space-between;max-width:1200px;margin:0 auto;padding:10px 24px}
.year-nav-arrow{display:flex;align-items:center;gap:6px;padding:6px 16px;border-radius:8px;font-size:13px;font-weight:600;color:var(--green);transition:all .15s;white-space:nowrap;flex-shrink:0}
.year-nav-arrow:hover{background:var(--green-50)}
.year-nav-arrow.disabled{color:var(--text3);pointer-events:none;opacity:.4}
.year-nav-pills{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;padding:0 8px}
.year-nav-pills::-webkit-scrollbar{display:none}
.year-nav-pill{display:inline-flex;align-items:center;justify-content:center;min-width:48px;padding:5px 12px;border-radius:6px;font-size:13px;font-weight:600;color:var(--text2);white-space:nowrap;transition:all .15s;text-decoration:none}
.year-nav-pill:hover{background:var(--green-50);color:var(--green)}
.year-nav-pill.active{background:var(--green);color:#fff;pointer-events:none}

/* ===== YEAR HERO ===== */
.year-hero{padding:56px 0 48px;background:linear-gradient(180deg,var(--green-50) 0%,#fff 100%);position:relative}
.year-hero-grid{display:grid;grid-template-columns:1fr 260px;gap:48px;align-items:center}
.year-hero-num{font-family:var(--mono);font-size:clamp(48px,8vw,80px);font-weight:800;color:#D4A017;line-height:1;margin-bottom:8px;letter-spacing:-2px}
.year-hero-title{font-size:clamp(22px,3vw,32px);font-weight:800;color:var(--dark);margin-bottom:12px}
.year-hero-desc{font-size:15px;color:var(--text2);line-height:1.8;margin-bottom:28px;max-width:540px}
.year-hero-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ===== EXAM OVERVIEW ===== */
.overview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.overview-card{background:var(--white);border:1px solid var(--border);border-radius:16px;padding:28px 24px}
.overview-card h3{font-size:14px;font-weight:700;color:var(--dark);margin-bottom:16px;display:flex;align-items:center;gap:8px}
.overview-card h3 .oc-icon{width:28px;height:28px;border-radius:6px;background:var(--green);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;flex-shrink:0}
.overview-list{list-style:none}
.overview-list li{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--border);font-size:13px;color:var(--text)}
.overview-list li:last-child{border-bottom:none}
.overview-list .lbl{color:var(--text2)}
.overview-list .val{font-weight:600;color:var(--dark)}
.overview-list .val.green{color:var(--green)}
.overview-bar{height:6px;border-radius:3px;background:var(--bg);margin-top:4px;overflow:hidden}
.overview-bar-fill{height:100%;border-radius:3px;background:var(--green)}
.cutoff-item{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--border)}
.cutoff-item:last-child{border-bottom:none}
.cutoff-name{font-size:13px;font-weight:600;color:var(--dark)}
.cutoff-en{font-size:11px;color:var(--green);font-weight:500}
.cutoff-score{font-family:var(--mono);font-size:20px;font-weight:700;color:var(--green)}

/* ===== PROBLEM CARDS ===== */
.problems-section{background:var(--green-50)}
.problem-card{background:var(--white);border:1px solid var(--border);border-radius:16px;padding:28px 32px;margin-bottom:20px;border-left:3px solid var(--green-100);transition:all .2s}
.problem-card:hover{border-left-color:var(--green);box-shadow:0 4px 16px rgba(43,58,92,.05)}
.problem-top{display:flex;align-items:center;gap:10px;margin-bottom:16px;flex-wrap:wrap}
.problem-num{font-family:var(--mono);font-size:12px;font-weight:700;color:#fff;background:var(--green);padding:3px 10px;border-radius:6px}
.problem-diff{font-size:11px;font-weight:700;padding:3px 10px;border-radius:6px}
.problem-diff.easy{color:#16a34a;background:#f0fdf4;border:1px solid #bbf7d0}
.problem-diff.med{color:var(--green);background:var(--green-50);border:1px solid var(--green-100)}
.problem-diff.hard{color:#dc2626;background:#fef2f2;border:1px solid #fecaca}
.problem-concept{font-size:11px;font-weight:600;padding:3px 10px;border-radius:6px;color:var(--text2);background:var(--bg);border:1px solid var(--border)}
.problem-question{font-size:15px;color:var(--text);line-height:1.8;margin-bottom:16px}
.problem-img{max-width:200px;margin:0 0 16px;border:1px solid var(--border);border-radius:8px;background:#fff;padding:8px}
.problem-options{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-bottom:16px}
.problem-option{padding:10px 12px;border-radius:10px;font-size:13px;font-weight:500;color:var(--text);background:var(--bg);border:1px solid var(--border);text-align:center;transition:all .15s;cursor:default}
.problem-toggle{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:8px;font-size:13px;font-weight:600;color:var(--green);background:var(--green-50);border:1px solid var(--green-100);cursor:pointer;transition:all .15s}
.problem-toggle:hover{background:var(--green-100)}
.problem-toggle svg{transition:transform .2s}
.problem-toggle.open svg{transform:rotate(180deg)}
.problem-solution{max-height:0;overflow:hidden;transition:max-height .4s ease,opacity .3s ease;opacity:0}
.problem-solution.open{max-height:600px;opacity:1;margin-top:16px}
.solution-steps{background:var(--green-50);border-radius:12px;padding:20px 24px;margin-bottom:12px}
.solution-steps h4{font-size:13px;font-weight:700;color:var(--green);margin-bottom:12px}
.solution-step{display:flex;gap:10px;padding:6px 0;font-size:13px;color:var(--text);line-height:1.7}
.solution-step .step-num{font-family:var(--mono);font-size:11px;font-weight:700;color:var(--white);background:var(--green-light);width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}
.solution-answer{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.solution-answer .ans{font-size:14px;font-weight:700;color:#16a34a}
.solution-answer .tip{font-size:12px;color:var(--text3);font-style:italic}

/* ===== DOWNLOAD CTA ===== */
.download-cta{background:var(--white);border:1px solid var(--green-100);border-radius:20px;padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;box-shadow:0 2px 16px rgba(43,58,92,.04)}
.download-cta h3{font-size:18px;font-weight:700;color:var(--dark);margin-bottom:6px}
.download-cta p{font-size:13px;color:var(--text2);line-height:1.7}
.download-cta .qr-mini{width:120px;height:120px;border-radius:12px;border:1px solid var(--border);flex-shrink:0}

/* ===== YEAR GRID NAV ===== */
.year-grid-nav{background:var(--bg);padding:56px 0}
.year-grid-nav .section-head{margin-bottom:32px}
.year-grid-nav .agrid{margin-bottom:0}

/* ===== PAST PAPERS PAGE ===== */
.past-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.past-card{background:var(--white);border:1px solid var(--border);border-radius:16px;padding:28px;transition:all .2s;display:flex;gap:20px;align-items:flex-start;text-decoration:none;color:inherit}
.past-card:hover{border-color:var(--green-100);box-shadow:0 4px 16px rgba(43,58,92,.05);transform:translateY(-2px)}
.past-card-year{font-family:var(--mono);font-size:32px;font-weight:700;color:var(--green);line-height:1;flex-shrink:0;min-width:70px}
.past-card-content h3{font-size:15px;font-weight:700;color:var(--dark);margin-bottom:6px}
.past-card-content p{font-size:12px;color:var(--text3);line-height:1.7;margin-bottom:10px}
.past-card-content .pills{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.past-card-content .pills span{padding:3px 10px;background:var(--bg);border-radius:6px;font-size:11px;color:var(--text2);font-weight:500}
.past-card-content .diff-tag{font-size:11px;font-weight:700;padding:3px 10px;border-radius:6px}
.diff-tag.easy-yr{color:#16a34a;background:#f0fdf4;border:1px solid #bbf7d0}
.diff-tag.mid-yr{color:var(--green);background:var(--green-50);border:1px solid var(--green-100)}
.diff-tag.hard-yr{color:#dc2626;background:#fef2f2;border:1px solid #fecaca}

/* ===== LANGUAGE SWITCH & ANSWER FEEDBACK ===== */
.lang-switch{display:flex;gap:0;border:1.5px solid var(--border);border-radius:8px;overflow:hidden;margin-left:12px;flex-shrink:0}
.lang-btn{padding:4px 10px;font-size:12px;font-weight:700;cursor:pointer;background:transparent;color:var(--text3);border:none;transition:all .15s;font-family:inherit}
.lang-btn.active{background:var(--green);color:#fff}
.lang-btn:hover:not(.active){background:var(--bg);color:var(--text)}
body[data-lang="zh"] .en{display:none!important}
body[data-lang="en"] .zh{display:none!important}
/* Answer selection */
.problem-option{cursor:pointer;transition:all .15s;position:relative}
.problem-option:hover{border-color:var(--green-100);background:var(--green-50)}
.problem-option.selected{border-color:var(--green);background:var(--green-50);font-weight:600}
.problem-option.correct{border-color:#16a34a;background:#f0fdf4;color:#166534;font-weight:600}
.problem-option.correct::after{content:" \2713";color:#16a34a;font-weight:700}
.problem-option.wrong{border-color:#dc2626;background:#fef2f2;color:#991b1b}
.problem-option.wrong::after{content:" \2717";color:#dc2626;font-weight:700}
.problem-card.answered .problem-option{cursor:default;pointer-events:none}
.problem-card.answered .problem-option:not(.correct):not(.wrong){opacity:.5}
.answer-result{display:none;padding:12px 16px;border-radius:10px;margin-top:12px;font-size:14px;font-weight:600;line-height:1.6}
.answer-result.show{display:block}
.answer-result.result-correct{background:#fef2f2;border:1px solid #fecaca;color:#991b1b}
.answer-result.result-right{background:#f0fdf4;border:1px solid #bbf7d0;color:#166534}

/* ===== RESOURCE PAGES ===== */
.resource-hero{background:linear-gradient(180deg,var(--green-50) 0%,#fff 100%);padding:48px 0 40px;text-align:center}
.resource-hero h1{font-size:clamp(30px,4vw,42px);font-weight:800;color:var(--dark);margin-bottom:8px}
.resource-hero p{font-size:17px;color:var(--text2);max-width:560px;margin:0 auto 20px;line-height:1.8}
.resource-hero .hero-icon{font-size:40px;display:block;margin-bottom:12px}
.resource-toc{display:flex;gap:6px;justify-content:center;flex-wrap:wrap}
.resource-toc a{padding:6px 16px;border-radius:20px;font-size:14px;font-weight:600;color:var(--text2);background:var(--white);border:1.5px solid var(--border);text-decoration:none;transition:all .15s;white-space:nowrap}
.resource-toc a:hover{color:var(--green);border-color:var(--green-100);background:var(--green-50)}

/* Module blocks */
.module-block{background:var(--white);border:1px solid var(--border);border-radius:16px;padding:32px;margin-bottom:24px}
.module-header{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.module-header h3{font-size:20px;font-weight:700;color:var(--dark);margin:0}
.module-split{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.module-split .module-text h3{font-size:20px;font-weight:700;color:var(--dark);margin:0 0 12px}
.module-split .module-text p{font-size:16px;line-height:1.7;color:var(--text2);margin:0 0 16px}
.module-split .module-text .module-features{list-style:none;padding:0;margin:0}
.module-split .module-text .module-features li{font-size:15px;color:var(--text2);padding:6px 0;border-bottom:1px solid var(--bg);display:flex;align-items:center;gap:8px}
.module-split .module-text .module-features li:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--green);flex-shrink:0}
.module-split .module-images{display:flex;flex-direction:column;gap:12px}
.module-split .module-images img{border-radius:10px;border:1px solid var(--border);width:100%}
.module-split .module-images.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.module-pct{margin-left:auto;font-size:14px;font-weight:700;color:var(--green);font-family:var(--mono)}
.concept-item{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--bg)}
.concept-item:last-child{border-bottom:none}
.concept-name{font-size:14px;font-weight:600;color:var(--text);min-width:140px;flex-shrink:0}
.concept-bar{flex:1;height:8px;background:var(--bg);border-radius:4px;overflow:hidden}
.concept-bar-fill{height:100%;background:var(--green);border-radius:4px;transition:width .3s}
.concept-stat{font-size:12px;font-weight:600;color:var(--text3);min-width:80px;text-align:right;font-family:var(--mono);flex-shrink:0}

/* Tables */
.table-wrap{overflow-x:auto;margin:0 0 32px;border-radius:12px;border:1px solid var(--border)}
.dl-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;max-width:680px;margin:0 auto}
.dl-item{display:flex;align-items:center;justify-content:space-between;background:var(--white);border:1px solid var(--border);border-radius:10px;padding:10px 16px;transition:all .2s;text-decoration:none}
.dl-item:hover{border-color:var(--green);box-shadow:0 2px 8px rgba(43,58,92,.06);transform:translateY(-1px)}
.dl-year{font-family:var(--mono);font-size:16px;font-weight:700;color:var(--dark)}
.dl-badge{display:inline-flex;align-items:center;gap:4px;font-size:13px;font-weight:600;color:var(--green);background:var(--green-50);padding:3px 10px;border-radius:6px}
.dl-badge svg{flex-shrink:0}
.formula-table,.glossary-table{width:100%;border-collapse:collapse;font-size:14px}
.formula-table th,.glossary-table th{background:var(--green);color:#fff;font-weight:700;padding:12px 16px;text-align:center;font-size:13px;white-space:nowrap}
.formula-table td,.glossary-table td{padding:10px 16px;border-top:1px solid var(--border);color:var(--text);line-height:1.6;text-align:center}
.formula-table tr:nth-child(even) td,.glossary-table tr:nth-child(even) td{background:var(--bg)}
.formula-expr{font-family:var(--mono);font-size:13px;color:var(--green);font-weight:600;background:var(--green-50);padding:2px 8px;border-radius:4px;white-space:nowrap}
.term-en{font-weight:700;color:var(--text)}
.term-cn{font-weight:700;color:var(--dark)}

/* Book cards */
.tier-section{margin-bottom:40px}
.tier-header{display:inline-block;padding:6px 18px;border-radius:20px;font-size:14px;font-weight:700;margin-bottom:20px}
.tier-header.basic{color:#2B3A5C;background:#F0F2F6;border:1.5px solid #C5CED9}
.tier-header.mid{color:var(--green);background:var(--green-50);border:1.5px solid var(--green-100)}
.tier-header.adv{color:#7c3aed;background:#f5f3ff;border:1.5px solid #c4b5fd}
.book-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.book-card{background:var(--white);border:1px solid var(--border);border-radius:14px;padding:24px;transition:all .2s}
.book-card:hover{border-color:var(--green-100);box-shadow:0 4px 16px rgba(43,58,92,.05)}
.book-card h4{font-size:15px;font-weight:700;color:var(--dark);margin-bottom:4px}
.book-card .book-author{font-size:12px;color:var(--text3);margin-bottom:10px}
.book-card .book-desc{font-size:13px;color:var(--text2);line-height:1.7;margin-bottom:12px}
.book-tags{display:flex;gap:8px;flex-wrap:wrap}
.book-tag{font-size:11px;font-weight:600;padding:3px 10px;border-radius:6px}
.book-tag.easy{color:#2B3A5C;background:#F0F2F6}
.book-tag.med{color:var(--green);background:var(--green-50)}
.book-tag.hard{color:#7c3aed;background:#f5f3ff}
.book-tag.lang{color:var(--text3);background:var(--bg)}

/* Mistake examples */
.mistake-category{margin-bottom:40px}
.mistake-cat-header{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.mistake-cat-header .cat-icon{font-size:28px}
.mistake-cat-header h3{font-size:18px;font-weight:700;color:var(--dark);margin:0}
.mistake-cat-header p{font-size:13px;color:var(--text3);margin:0}
.mistake-example{background:var(--white);border:1px solid var(--border);border-radius:14px;padding:24px;margin-bottom:16px}
.mistake-example h4{font-size:14px;font-weight:700;color:var(--dark);margin-bottom:12px}
.trap-box{background:#fef2f2;border:1px solid #fecaca;border-radius:10px;padding:14px 16px;margin-bottom:10px;font-size:13px;color:#991b1b;line-height:1.7}
.trap-box strong{color:#dc2626}
.correct-box{background:#f0fdf4;border:1px solid #bbf7d0;border-radius:10px;padding:14px 16px;margin-bottom:10px;font-size:13px;color:#166534;line-height:1.7}
.correct-box strong{color:#16a34a}
.takeaway-box{background:var(--green-50);border:1px solid var(--green-100);border-radius:10px;padding:14px 16px;font-size:13px;color:var(--green);line-height:1.7;font-weight:600}

/* Method cards */
.method-card{background:var(--white);border:1px solid var(--border);border-radius:16px;padding:32px;margin-bottom:24px;border-left:4px solid var(--green)}
.method-top{display:flex;align-items:flex-start;gap:16px;margin-bottom:16px}
.method-num{width:48px;height:48px;border-radius:14px;background:var(--green);color:#fff;font-family:var(--mono);font-size:18px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.method-info h3{font-size:17px;font-weight:700;color:var(--dark);margin-bottom:2px}
.method-info .method-en{font-size:12px;color:var(--text3);margin-bottom:6px}
.method-info .method-summary{font-size:13px;color:var(--text2);line-height:1.7}
.method-when{background:var(--green-50);border:1px solid var(--green-100);border-radius:10px;padding:14px 16px;margin-bottom:16px;font-size:13px;color:var(--text)}
.method-when strong{color:var(--green)}
.method-steps{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.method-step{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text2)}
.method-step .ms-num{width:22px;height:22px;border-radius:50%;background:var(--green-50);color:var(--green);font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.method-example{background:var(--bg);border-radius:10px;padding:16px;font-size:13px;color:var(--text2);line-height:1.7}
.method-example strong{color:var(--text)}

/* Info cards */
.info-card{background:var(--green-50);border:1px solid var(--green-100);border-radius:14px;padding:24px;margin-bottom:16px}
.info-card h4{font-size:15px;font-weight:700;color:var(--dark);margin-bottom:8px}
.info-card p,.info-card li{font-size:13px;color:var(--text2);line-height:1.8}
.info-card ul{padding-left:20px;margin:0}
.checklist{list-style:none;padding:0}
.checklist li{padding:8px 0;border-bottom:1px solid var(--border);font-size:13px;color:var(--text);display:flex;align-items:flex-start;gap:8px}
.checklist li:last-child{border-bottom:none}
.checklist li::before{content:"\2713";color:var(--green);font-weight:700;flex-shrink:0}


/* ===== SECTION TABS (numbered 01/02/03) ===== */
.section-tab{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.section-tab .tab-num{font-family:var(--mono);font-size:14px;font-weight:700;color:#2B3A5C;background:#F4B942;width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center}
.section-tab .tab-label{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:2px;color:#D4A017}

/* ===== MOBILE COMPONENTS (hamburger, fan menu, contact banner) ===== */
.hamburger-btn{display:none;width:44px;height:44px;flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer;background:none;border:none}
.hamburger-btn span{display:block;width:20px;height:2px;background:var(--green);border-radius:1px;transition:all .25s}
.hamburger-btn.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hamburger-btn.open span:nth-child(2){opacity:0}
.hamburger-btn.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.fan-menu{position:fixed;z-index:1001;background:#fff;border-radius:12px;box-shadow:0 8px 32px rgba(15,23,42,.15);padding:8px;min-width:180px;display:none}
.fan-menu.open{display:block}
.fan-item{display:block;padding:10px 16px;border-radius:8px;font-size:14px;font-weight:500;color:var(--text2);transition:all .15s}
.fan-item:hover{background:var(--green-50);color:var(--green)}
.fan-overlay{position:fixed;inset:0;z-index:1000;background:transparent;display:none}
.fan-overlay.open{display:block}
.contact-banner{position:fixed;top:0;left:0;right:0;z-index:1001;background:var(--green);color:rgba(255,255,255,.9);height:var(--contact-banner-height);padding:5px 0;font-size:12px;white-space:nowrap;overflow:hidden}
.contact-banner-inner{display:flex;align-items:center;justify-content:center;gap:8px;max-width:1200px;margin:0 auto;padding:0 24px}
.contact-banner a{color:var(--gold);font-weight:600}
.contact-banner svg{color:var(--gold);flex-shrink:0}
.contact-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:9999;display:none;align-items:center;justify-content:center;padding:20px}
.contact-overlay.show{display:flex}
.contact-modal{background:#fff;border-radius:20px;padding:40px 32px;text-align:center;max-width:340px;width:100%;position:relative}
.contact-modal .close-btn{position:absolute;top:12px;right:16px;font-size:24px;color:var(--text3);background:none;border:none;cursor:pointer}
.contact-modal .modal-icon{width:56px;height:56px;border-radius:50%;background:var(--green-50);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;color:var(--green)}
.contact-modal h3{font-size:18px;font-weight:700;color:var(--dark);margin-bottom:12px}
.contact-modal .phone-number{font-size:28px;font-weight:800;color:var(--green);font-family:var(--mono);margin-bottom:8px}
.contact-modal .phone-tip{font-size:13px;color:var(--text3);line-height:1.7;margin-bottom:20px}
.contact-modal .call-btn{display:inline-block;padding:12px 32px;border-radius:10px;font-size:14px;font-weight:600;color:#fff;background:var(--green);transition:all .2s}
.contact-modal .call-btn:hover{background:#1E2A45}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
  .rgrid .rcard:first-child{grid-row:auto}
  .hero-grid{max-width:100%}
  .qr-card{max-width:280px;margin:0 auto}
  .level-grid{grid-template-columns:repeat(2,1fr)}
  .agrid{grid-template-columns:repeat(3,1fr)}
  .rgrid{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr;text-align:center}
  .cta-checks{justify-items:center}
  .cta-qr{max-width:240px;margin:0 auto}
  .footer-grid{grid-template-columns:1fr 1fr}
  .intro-grid{grid-template-columns:1fr}
  .award-grid{grid-template-columns:repeat(3,1fr)}
  .year-hero-grid{grid-template-columns:1fr;text-align:center}
  .year-hero-desc{margin:0 auto 28px}
  .year-hero-actions{justify-content:center}
  .overview-grid{grid-template-columns:1fr}
  .book-grid{grid-template-columns:1fr}
  .method-steps{flex-direction:column}
  .concept-item{flex-wrap:wrap}
  .concept-bar{min-width:100%;order:3}
  .problem-options{grid-template-columns:repeat(3,1fr)}
  .download-cta{flex-direction:column;text-align:center}
  .past-grid{grid-template-columns:1fr}
  .year-nav-pills{display:none}
}
@media(max-width:768px){
  .header{height:auto}
  .header-inner{flex-wrap:nowrap;padding:10px 16px;gap:0}
  .logo{flex:1;min-width:0;overflow:hidden}
  .logo-sub{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px}
  .nav{display:none}
  .hamburger-btn{display:flex;order:5;margin-left:8px;flex-shrink:0}
  .header-btns{display:none}
  .lang-switch{margin-left:auto;order:4;flex-shrink:0}
  .hero-banner{margin-top:calc(60px + var(--contact-banner-height))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:16px}
  .footer-brand{grid-column:1 / -1}
  .footer{padding:40px 0 24px}
  .footer-brand p{font-size:14px;line-height:1.8;max-width:none}
  .footer h4{font-size:14px;font-weight:700;margin-bottom:14px;text-transform:none;letter-spacing:0}
  .footer li{margin-bottom:10px}
  .footer li a{font-size:14px}
  .footer-contact{font-size:14px}
  .footer-bottom{font-size:12px;padding-top:16px}
  .fab-group{bottom:14px;right:14px;gap:8px}
  .fab{width:42px;height:42px}
  .fab span{display:none}
}
@media(max-width:640px){
  .section-tab .tab-num{width:28px;height:28px;font-size:11px}
  .container{padding:0 16px}
  .hero{padding:calc(40px + var(--contact-banner-height)) 0 56px}
  .breadcrumb{margin-top:calc(100px + var(--contact-banner-height))}
  .hero-title{font-size:26px}
  .hero-stats{gap:20px;flex-wrap:wrap}
  .hero-stat strong{font-size:20px}
  .hero-stat span{font-size:11px}
  .level-grid{grid-template-columns:1fr}
  .agrid{grid-template-columns:repeat(2,1fr)}
  .rgrid{grid-template-columns:1fr}
  .ggrid{flex-direction:column;gap:16px}
  .ggrid .gcard:not(:last-child)::after{display:none}
  .intro-grid{grid-template-columns:1fr}
  .award-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:16px}
  .footer-brand{grid-column:1 / -1}
  .footer{padding:32px 0 20px}
  .footer-brand p{font-size:14px;line-height:1.8;max-width:none}
  .footer h4{font-size:14px;font-weight:700;margin-bottom:14px;text-transform:none;letter-spacing:0}
  .footer li{margin-bottom:10px}
  .footer li a{font-size:14px}
  .footer-contact{font-size:14px}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center;font-size:12px;padding:10px 8px;overflow-wrap:break-word;word-break:break-all;white-space:normal;max-width:100%}
  .footer-bottom span,.footer-bottom a{overflow-wrap:break-word;word-break:break-all;white-space:normal;font-size:12px}
  .section{padding:64px 0}
  .section-head{margin-bottom:36px}
  .section-head h2{font-size:22px}
  .level-bar-inner{padding:10px 16px}
  .level-bar .label{display:none}
  .breadcrumb{margin-top:calc(60px + var(--contact-banner-height));padding:6px 0}
  .year-page-banner{padding:0}
  .year-hero{padding:24px 0 20px}
  .year-hero-num{font-size:44px;margin-bottom:4px}
  .year-hero-title{font-size:22px;margin-bottom:8px}
  .year-hero-desc{font-size:14px;margin-bottom:16px}
  .stats{padding:12px 0}
  .year-nav{background:var(--white);border-bottom:1px solid var(--border)}
  .year-nav-inner{padding:6px 16px}
  .year-nav-arrow{font-size:12px;padding:6px 10px;color:var(--green)}
  .year-nav-arrow:hover{background:var(--green-50)}
  .year-nav-arrow.disabled{color:var(--text3);opacity:.4}
  .breadcrumb-inner{font-size:12px}
  .inline-cta{flex-direction:column;text-align:center;padding:24px 20px;gap:16px}
  .stats-inner{gap:10px 14px;font-size:12px}
  .stats-inner div{font-size:12px}
  .problem-card{padding:20px 16px}
  .problem-options{grid-template-columns:1fr}
  .problem-option{padding:12px 14px;font-size:14px;text-align:left}
  .problem-question{font-size:14px}
  .problem-top{gap:6px}
  .problem-num{font-size:11px}
  .problem-diff{font-size:10px}
  .problem-concept{font-size:10px}
  .past-card{flex-direction:column;gap:12px;padding:20px}
  .past-card-year{font-size:28px;min-width:auto}
  .resource-toc{gap:4px}
  .resource-toc a{padding:5px 12px;font-size:12px}
  .resource-hero{padding:36px 0 28px}
  .resource-hero h1{font-size:22px}
  .resource-hero p{font-size:14px}
  .method-card{padding:20px}
  .method-num{width:40px;height:40px;font-size:16px}
  .method-info h3{font-size:15px}
  .method-example{padding:14px}
  .module-block{padding:20px}
  .module-header h3{font-size:16px}
.module-split{grid-template-columns:1fr;gap:16px}
.dl-list{grid-template-columns:1fr}
  .concept-name{font-size:13px;min-width:110px}
  .concept-stat{font-size:11px;min-width:60px}
  .formula-table th,.glossary-table th,.formula-table td,.glossary-table td{padding:8px 10px;font-size:12px}
  .formula-expr{font-size:11px}
  .mistake-example{padding:18px}
  .trap-box,.correct-box,.takeaway-box{padding:12px 14px;font-size:12px}
  .book-card{padding:18px}
  .lcard-head{padding:18px 18px 10px}
  .lcard-level{font-size:22px}
  .lcard-body{padding:0 18px 16px}
  .lcard-body .desc{font-size:11px}
  .lcard-pills span{font-size:10px;padding:3px 8px}
  .lcard-foot{padding:12px 18px}
  .overview-card{padding:20px 16px}
  .cta{padding:64px 0}
  .cta-checks{grid-template-columns:1fr}
  .cta-qr img{width:140px;height:140px}
  .fab-group{bottom:14px;right:14px;gap:8px}
  .fab{width:40px;height:40px}
  .fab span{display:none}
  .download-cta{padding:24px 20px}
  .download-cta h3{font-size:16px}
  .download-cta .qr-mini{width:100px;height:100px}
  .info-card{padding:18px}
  .tier-header{font-size:13px}
}


/* ===== CONTACTUS PAGE STYLES ===== */
.btn-blue{padding:14px 32px;border-radius:4px;font-size:14px;font-weight:600;color:#fff;background:var(--blue);transition:all .2s;display:inline-block;text-align:center}
.btn-blue:hover{background:#D4A017;box-shadow:0 4px 12px rgba(212,160,23,.25)}
/* ===== ABOUT STATS (hero-style) ===== */
.about-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:36px 0}
.about-stat-card{background:var(--white);border:1px solid var(--border);border-top:3px solid var(--sc,var(--blue));border-radius:10px;padding:24px 18px 20px;text-align:center;transition:all .25s ease}
.about-stat-card:hover{box-shadow:0 8px 28px rgba(43,58,92,.08);transform:translateY(-3px)}
.about-stat-card .sc-icon{width:44px;height:44px;border-radius:10px;background:color-mix(in srgb,var(--sc,var(--blue)) 10%,transparent);color:var(--sc,var(--blue));display:flex;align-items:center;justify-content:center;margin:0 auto 12px}
.about-stat-card .sc-num{font-family:var(--mono);font-size:28px;font-weight:800;color:var(--sc,var(--blue));line-height:1;letter-spacing:-.5px}
.about-stat-card .sc-label{font-size:13px;color:var(--text2);margin-top:6px;font-weight:500}
.intro-card .ic-icon-wrap{width:48px;height:48px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
/* ===== INFO CARDS (used on contactus) ===== */
.info-card--hero{background:linear-gradient(135deg,#F0F2F6 0%,#E8ECF2 100%);border:1px solid var(--green-100);border-left:4px solid #D4A017;border-radius:10px;padding:28px 28px 24px;position:relative;overflow:hidden}
.info-card--hero::after{content:"";position:absolute;right:-24px;top:-24px;width:96px;height:96px;border-radius:50%;background:rgba(212,160,23,.06);pointer-events:none}
.info-card--hero h4{font-size:17px;font-weight:800;color:var(--dark);margin-bottom:12px}
.info-card mark{background:none;color:#D4A017;font-weight:700;font-family:var(--mono);padding:0 2px;border-bottom:2px dotted currentColor}
.ic-badge{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;background:rgba(212,160,23,.12);color:#D4A017}
/* about-stat-card and intro-card icon wrap used on contactus */
/* ===== ADMISSION GRID ===== */
.admission-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.admission-card{background:var(--white);border-radius:8px;overflow:hidden;border:1px solid var(--border);transition:transform .2s,box-shadow .2s}
.admission-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(43,58,92,.08)}
.admission-card img{width:100%;height:auto;display:block}
.admission-label{text-align:center;padding:10px 8px;font-family:var(--mono);font-size:13px;font-weight:700;color:var(--dark);letter-spacing:.5px}
/* ===== LOCATION CARDS ===== */
.contact-quick-bar{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:24px;padding:14px 20px;background:linear-gradient(135deg,#F0F2F6 0%,#E8ECF2 100%);border:1px solid #C5CED9;border-radius:10px}
.cqb-item{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:#2B3A5C}
.cqb-item svg{color:#D4A017;flex-shrink:0}
.cqb-sep{color:#C5CED9;font-size:16px}
.ucas-bar{text-align:center;margin-bottom:20px;padding:10px 16px;font-size:13px;font-weight:600;color:#2B3A5C;background:rgba(43,58,92,.05);border:1px dashed #C5CED9;border-radius:8px;letter-spacing:.3px}
.location-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.location-card{background:var(--white);border:1px solid var(--border);border-left:4px solid #D4A017;border-radius:10px;padding:24px 22px;display:flex;align-items:flex-start;gap:16px;transition:all .25s ease}
.location-card:hover{box-shadow:0 8px 28px rgba(43,58,92,.08);transform:translateY(-2px)}
.location-card .lc-icon{width:44px;height:44px;border-radius:10px;background:rgba(43,58,92,.08);color:#D4A017;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.location-card .lc-body{flex:1;min-width:0}
.location-card .lc-body strong{font-size:15px;font-weight:700;color:var(--dark);display:block;margin-bottom:4px}
.location-card .lc-body p{font-size:13px;color:var(--text2);line-height:1.6;margin:0 0 8px}
.location-card .lc-tel{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;color:#D4A017;font-family:var(--mono);background:rgba(43,58,92,.06);padding:3px 10px;border-radius:12px}
.location-card .lc-tel svg{color:#D4A017}
/* ===== CONTACT CHANNEL CARDS ===== */
.contact-channel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.channel-card{background:var(--white);border:1px solid var(--border);border-top:3px solid #D4A017;border-radius:12px;padding:32px 28px;display:flex;flex-direction:column;align-items:center;text-align:center;transition:all .25s ease}
.channel-card:hover{box-shadow:0 8px 28px rgba(43,58,92,.10);transform:translateY(-2px)}
.channel-card .ch-icon{width:52px;height:52px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.channel-card--primary .ch-icon{background:#D4A017;color:#fff;box-shadow:0 4px 14px rgba(43,58,92,.25)}
.channel-card .ch-icon--outline{background:rgba(43,58,92,.08);color:#D4A017}
.channel-card h3{font-size:17px;font-weight:700;color:var(--dark);margin-bottom:10px}
.channel-card .ch-qr{width:180px;height:180px;border-radius:10px;border:1px solid var(--border);margin-bottom:12px}
.channel-card .ch-number{font-family:var(--mono);font-size:24px;font-weight:700;color:#D4A017;margin-bottom:8px;letter-spacing:.5px}
.channel-card p{font-size:13px;color:var(--text2);line-height:1.7;margin:0 0 16px}
.channel-card .btn-blue{margin-top:auto}
/* ===== LEADERBOARD GALLERY ===== */
.leaderboard-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.leaderboard-grid img{width:100%;border-radius:4px;border:1.5px dashed var(--border);transition:all .2s;cursor:pointer}
.leaderboard-grid img:hover{border-color:var(--blue);border-style:solid;box-shadow:0 4px 16px rgba(43,58,92,.08);transform:translateY(-2px)}
/* ===== PARTNER GRID ===== */
.partner-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
.partner-tag{background:var(--white);border:1px dashed var(--border);border-radius:4px;padding:10px 12px;text-align:center;font-size:12px;font-weight:600;color:var(--text);transition:all .15s}
.partner-tag:hover{border-color:var(--blue-100);border-style:solid;color:var(--blue);background:var(--blue-50)}
/* ===== COOPERATION CARDS ===== */
.coop-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.coop-card{background:var(--white);border:1.5px dashed var(--border);border-radius:4px;padding:28px 24px;text-align:center;transition:all .2s}
.coop-card:hover{border-color:var(--blue-100);border-style:solid;box-shadow:0 4px 16px rgba(43,58,92,.05);transform:translateY(-2px)}
.coop-card .coop-icon{width:48px;height:48px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:20px}
.coop-card h4{font-size:15px;font-weight:700;color:var(--dark);margin-bottom:6px}
.coop-card p{font-size:13px;color:var(--text3);line-height:1.7}
/* ===== CURRICULUM FEATURE ===== */
.curriculum-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.curriculum-item{background:var(--white);border:1px solid var(--border);border-left:4px solid var(--ci-color,var(--blue));border-radius:10px;padding:24px 22px 20px;transition:all .25s ease;position:relative;overflow:hidden}
.curriculum-item:hover{border-color:var(--ci-color,var(--blue));box-shadow:0 8px 28px rgba(43,58,92,.10),0 2px 8px rgba(0,0,0,.04);transform:translateY(-3px)}
.curriculum-item .ci-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:12px}
.curriculum-item .ci-head>div{flex:1;min-width:0}
.curriculum-item h4{font-size:15px;font-weight:700;color:var(--dark);margin-bottom:4px;line-height:1.4}
.curriculum-item .ci-tag{display:inline-block;font-size:11px;font-weight:600;color:var(--ci-color,var(--blue));background:color-mix(in srgb,var(--ci-color,var(--blue)) 10%,transparent);padding:2px 10px;border-radius:12px;letter-spacing:.3px}
.curriculum-item h4 .ci-num{display:none}
.curriculum-item>p{font-size:13px;color:var(--text2);line-height:1.7;margin:0}
.curriculum-item .ci-head>.ci-num{width:38px;height:38px;border-radius:10px;background:var(--ci-color,var(--blue));color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:800;flex-shrink:0;box-shadow:0 3px 10px color-mix(in srgb,var(--ci-color,var(--blue)) 35%,transparent)}

/* ===== CONTACTUS TABLET RESPONSIVE (max-width:1024px) ===== */
@media(max-width:1024px){
.about-stats{grid-template-columns:repeat(2,1fr);gap:14px}
.about-stat-card{padding:20px 14px 16px}
.about-stat-card .sc-num{font-size:24px}
.about-stat-card .sc-icon{width:38px;height:38px}
.contact-channel-grid{grid-template-columns:1fr;gap:16px}
.channel-card{padding:24px 20px}
.channel-card .ch-qr{width:160px;height:160px}
.channel-card .ch-number{font-size:20px}
.location-grid{grid-template-columns:1fr;gap:14px}
.contact-quick-bar{flex-direction:column;gap:6px;padding:12px 16px}
.cqb-sep{display:none}
.leaderboard-grid{grid-template-columns:repeat(2,1fr)}
.partner-grid{grid-template-columns:repeat(3,1fr)}
.coop-grid{grid-template-columns:1fr}
.curriculum-grid{grid-template-columns:repeat(2,1fr);gap:16px}
.curriculum-item{padding:20px 18px 16px}
.curriculum-item .ci-head>.ci-num{width:32px;height:32px;font-size:14px;border-radius:8px}
.admission-grid{grid-template-columns:repeat(2,1fr);gap:16px}
}
/* ===== CONTACTUS MOBILE RESPONSIVE (max-width:640px) ===== */
@media(max-width:640px){
.about-stats{grid-template-columns:repeat(2,1fr);gap:12px}
.about-stat-card{padding:18px 12px 14px}
.about-stat-card .sc-num{font-size:22px}
.about-stat-card .sc-icon{width:34px;height:34px;border-radius:8px}
.about-stat-card .sc-label{font-size:12px}
.fab-group{bottom:14px;right:14px;gap:8px}
.fab{width:40px;height:40px}
.fab span{display:none}
.info-card{padding:18px}
.info-card--hero,.info-card--accent,.info-card--green{padding:20px 18px 18px}
.info-card--hero h4,.info-card--accent h4,.info-card--green h4{font-size:15px}
.ic-badge{width:32px;height:32px;border-radius:8px}
.channel-card{padding:20px 16px}
.channel-card .ch-qr{width:140px;height:140px}
.channel-card .ch-number{font-size:18px}
.channel-card .ch-icon{width:44px;height:44px}
.location-card{padding:20px 18px}
.location-card .lc-icon{width:38px;height:38px}
.contact-quick-bar{flex-direction:column;gap:6px;padding:10px 14px;font-size:13px}
.leaderboard-grid{grid-template-columns:1fr}
.partner-grid{grid-template-columns:repeat(2,1fr)}
.coop-card{padding:20px 16px}
.admission-grid{grid-template-columns:1fr;gap:14px}
.admission-label{font-size:12px;padding:8px 6px}
.curriculum-grid{grid-template-columns:1fr;gap:14px}
.curriculum-item .ci-head>.ci-num{width:30px;height:30px;font-size:13px;border-radius:8px}
}