:root{
  --navy:#082f5b;
  --navy-deep:#041c37;
  --navy-soft:#123f70;
  --gold:#ffb01f;
  --gold-light:#ffd978;
  --ink:#102a48;
  --muted:#66788e;
  --paper:#f4f7fb;
  --line:#dce5ef;
  --white:#fff;
  --green:#0e9b6c;
  --shadow:0 18px 50px rgba(6,38,73,.13);
  --radius:28px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Segoe UI",Arial,sans-serif;line-height:1.6}
img{display:block;max-width:100%}
a{color:inherit}
button,input{font:inherit}
.shell{width:min(1180px,calc(100% - 40px));margin-inline:auto}
.skip-link{position:fixed;left:16px;top:-80px;z-index:9999;background:#fff;padding:10px 16px;border-radius:10px;box-shadow:var(--shadow)}
.skip-link:focus{top:16px}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.site-header{height:78px;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(8,47,91,.08);position:sticky;top:0;z-index:50}
.header-inner{height:100%;display:flex;align-items:center;gap:28px}
.brand{text-decoration:none;font-size:25px;font-weight:900;letter-spacing:-.04em;display:inline-flex;gap:6px;align-items:center}
.brand span{color:var(--navy)}
.brand strong{color:#ff9200}
.header-nav{display:flex;gap:28px;margin-left:auto}
.header-nav a{text-decoration:none;font-weight:700;color:#53677e;font-size:14px;position:relative}
.header-nav a:hover,.header-nav a.active{color:var(--navy)}
.header-nav a.active:after{content:"";position:absolute;left:0;right:0;bottom:-12px;height:3px;border-radius:3px;background:var(--gold)}
.back-home{text-decoration:none;padding:10px 16px;border:1px solid var(--line);border-radius:999px;font-weight:800;font-size:13px;background:#fff}
.hero{min-height:690px;display:flex;align-items:center;position:relative;overflow:hidden;background:linear-gradient(135deg,var(--navy-deep),#0a386b 58%,#0a4779);color:#fff}
.hero:after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(to right,#000,transparent 70%);pointer-events:none}
.hero-glow{position:absolute;border-radius:50%;filter:blur(10px);opacity:.35}
.hero-glow-one{width:470px;height:470px;background:#0f81be;right:-100px;top:-130px}
.hero-glow-two{width:300px;height:300px;background:#ffb01f;left:38%;bottom:-240px;opacity:.12}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center;padding-block:72px;position:relative;z-index:2}
.eyebrow,.section-kicker,.muted-label{font-size:12px;letter-spacing:.19em;font-weight:900;text-transform:uppercase}
.eyebrow{color:var(--gold-light);display:flex;align-items:center;gap:10px}.eyebrow span{width:34px;height:2px;background:var(--gold)}
.year-kicker{margin:16px 0 2px;font-size:20px;font-weight:800;letter-spacing:.12em}.year-kicker b{color:var(--gold);font-size:28px}
.hero h1{font-size:clamp(40px,5vw,66px);line-height:1.08;letter-spacing:-.045em;margin:12px 0 22px;max-width:740px}
.hero-lead{font-size:17px;color:#c9d8e7;max-width:680px;margin:0}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.btn{min-height:48px;padding:0 22px;border-radius:14px;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;font-weight:900;border:1px solid transparent;transition:.2s ease}
.btn:hover{transform:translateY(-2px)}
.btn-gold{background:linear-gradient(135deg,var(--gold-light),var(--gold));color:#1f2d3b;box-shadow:0 12px 28px rgba(255,176,31,.22)}
.btn-ghost{border-color:rgba(255,255,255,.28);color:#fff;background:rgba(255,255,255,.05)}
.btn-dark{background:var(--navy);color:#fff}
.annual-note{display:flex;align-items:center;gap:13px;margin-top:34px;color:#fff}.annual-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:14px;background:rgba(255,176,31,.15);color:var(--gold);font-size:20px}.annual-note div{display:flex;flex-direction:column}.annual-note strong{font-size:14px}.annual-note small{color:#b9c9d9}
.hero-collage{height:570px;position:relative;perspective:1200px}
.poster{position:absolute;margin:0;background:#fff;border:7px solid rgba(255,255,255,.93);border-radius:22px;overflow:hidden;box-shadow:0 28px 70px rgba(0,0,0,.42);transform-origin:center;transition:.3s ease}.poster:hover{z-index:8;transform:translateY(-9px) rotate(0deg) scale(1.02)}
.poster img{width:100%;height:100%;object-fit:cover}
.poster-a{width:250px;height:365px;right:42px;top:45px;transform:rotate(7deg)}
.poster-b{width:235px;height:345px;left:8px;top:110px;transform:rotate(-9deg)}
.poster-c{width:210px;height:310px;left:160px;bottom:4px;transform:rotate(2deg)}
.medal-badge{position:absolute;right:-6px;bottom:42px;width:145px;height:145px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#17304a;background:radial-gradient(circle at 35% 30%,#fff7cf,#ffc94c 46%,#e59508);border:9px solid rgba(255,255,255,.9);box-shadow:0 17px 42px rgba(0,0,0,.35);z-index:9}.medal-badge span{font-size:35px;font-weight:950;line-height:1}.medal-badge small{font-size:9px;letter-spacing:.12em;font-weight:900;margin-top:6px}
.year-strip{background:#fff;border-bottom:1px solid var(--line)}
.year-strip-inner{min-height:130px;display:flex;align-items:center;justify-content:space-between;gap:30px}.year-strip h2{margin:4px 0 0;font-size:25px}.muted-label{color:#8a9aab}.year-tabs{display:flex;gap:12px}.year-tab{border:1px solid var(--line);background:#fff;color:var(--ink);padding:14px 18px;border-radius:16px;text-align:left;min-width:170px;font-weight:900;display:flex;flex-direction:column;cursor:pointer}.year-tab small{font-weight:600;color:#8190a1}.year-tab.active{border-color:#ffc65a;background:#fff9ea;box-shadow:0 8px 24px rgba(255,176,31,.13)}.year-tab.disabled{opacity:.55;cursor:not-allowed}
.stats-section{padding:42px 0 18px}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.stat-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:24px;box-shadow:0 8px 26px rgba(9,42,75,.05);position:relative;overflow:hidden}.stat-card:after{content:"";position:absolute;width:90px;height:90px;border-radius:50%;background:#f1f6fb;right:-28px;top:-30px}.stat-card strong{display:block;font-size:40px;line-height:1;margin:13px 0 8px;color:var(--navy)}.stat-card p{margin:0;color:var(--muted);font-size:14px;font-weight:700}.stat-icon{display:inline-grid;place-items:center;min-width:42px;height:30px;padding:0 8px;border-radius:10px;background:#fff3d4;color:#8a5700;font-size:12px;font-weight:950;position:relative;z-index:2}
.featured-section{padding:72px 0}.section-heading{margin-bottom:30px}.section-kicker{color:#b06b00}.section-heading h2{font-size:clamp(32px,4vw,48px);line-height:1.12;letter-spacing:-.035em;margin:9px 0}.section-heading p{color:var(--muted);max-width:600px;margin:0}.split-heading{display:flex;align-items:end;justify-content:space-between;gap:30px}.center-heading{text-align:center}.center-heading p{margin-inline:auto}
.featured-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.featured-card{position:relative;min-height:440px;border-radius:26px;overflow:hidden;background:#092e57;box-shadow:var(--shadow);cursor:pointer}.featured-card img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;transition:.45s ease}.featured-card:after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(2,15,31,.92),transparent 58%)}.featured-card:hover img{transform:scale(1.035)}.featured-meta{position:absolute;z-index:2;left:22px;right:22px;bottom:20px;color:#fff}.featured-meta span{font-size:12px;font-weight:900;color:#ffd269;letter-spacing:.13em}.featured-meta h3{margin:5px 0 2px;font-size:23px}.featured-meta p{margin:0;color:#d5e0eb;font-weight:700}
.honor-section{padding:78px 0 96px;background:#eef3f8;border-block:1px solid #dde6ef}.toolbar{display:flex;justify-content:space-between;align-items:center;gap:18px;margin:38px 0 15px}.filter-group{display:flex;gap:9px;flex-wrap:wrap}.filter-btn{border:1px solid #d4dfeb;background:#fff;border-radius:999px;padding:10px 14px;color:#52687e;font-weight:850;cursor:pointer}.filter-btn span{display:inline-grid;place-items:center;min-width:22px;height:22px;padding:0 5px;margin-left:5px;border-radius:999px;background:#edf2f7;font-size:11px}.filter-btn.active{color:#fff;background:var(--navy);border-color:var(--navy)}.filter-btn.active span{background:rgba(255,255,255,.16)}
.search-box{width:min(320px,100%);height:46px;border:1px solid #d4dfeb;background:#fff;border-radius:999px;display:flex;align-items:center;padding:0 15px;gap:9px}.search-box svg{width:19px;fill:none;stroke:#708297;stroke-width:2;stroke-linecap:round}.search-box input{border:0;outline:0;background:transparent;width:100%;color:var(--ink)}.result-count{color:var(--muted);font-size:13px;font-weight:700;margin:0 0 17px}.honor-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.honor-card{background:#fff;border:1px solid #dce5ef;border-radius:22px;overflow:hidden;box-shadow:0 8px 25px rgba(8,47,91,.055);transition:.24s ease;cursor:pointer;position:relative}.honor-card:hover{transform:translateY(-5px);box-shadow:0 18px 38px rgba(8,47,91,.13)}.honor-image{aspect-ratio:3/4.18;background:#dfe8f0;overflow:hidden}.honor-image img{width:100%;height:100%;object-fit:cover;transition:.35s ease}.honor-card:hover .honor-image img{transform:scale(1.025)}.honor-content{padding:17px 17px 18px}.honor-name{font-size:17px;line-height:1.25;margin:0 0 12px;color:var(--navy)}.honor-row{display:flex;align-items:center;justify-content:space-between;gap:10px}.score-pill{display:inline-flex;align-items:center;gap:5px;padding:6px 10px;border-radius:999px;background:#fff4d8;color:#825100;font-size:12px;font-weight:900}.view-hint{font-size:12px;color:#7d8da0;font-weight:700}.empty-state{text-align:center;background:#fff;border:1px dashed #bfcddd;border-radius:20px;padding:40px;color:var(--muted)}
.teacher-letter{padding:94px 0;background:#fff}.letter-grid{display:grid;grid-template-columns:170px 1fr;gap:42px;align-items:start}.letter-mark{font-family:Georgia,serif;font-size:210px;line-height:.65;color:#ffcf69;opacity:.72;text-align:center}.letter-copy h2{font-size:clamp(34px,4vw,52px);line-height:1.13;letter-spacing:-.04em;margin:10px 0 25px;max-width:850px}.letter-copy p{font-family:Cambria,"Times New Roman",Times,serif;font-kerning:normal;font-size:20px;color:#40566c;line-height:1.8;max-width:900px}.signature{display:flex;flex-direction:column;margin-top:30px}.signature strong{font-size:20px;color:var(--navy)}.signature span{color:var(--muted)}
.closing-section{padding:36px 0 80px;background:#fff}.closing-card{background:linear-gradient(135deg,#082f5b,#0c477b);color:#fff;border-radius:30px;padding:42px 48px;display:flex;align-items:center;justify-content:space-between;gap:25px;box-shadow:var(--shadow)}.closing-card h2{font-size:35px;line-height:1.2;margin:8px 0 0}.closing-card .section-kicker{color:#ffd16a}.closing-card .btn-dark{background:#fff;color:var(--navy)}
.site-footer{background:#061c34;color:#bdcad7;padding:42px 0}.footer-inner{display:grid;grid-template-columns:1.5fr .7fr auto;gap:35px;align-items:center}.footer-brand span{color:#fff}.footer-inner p{margin:8px 0 0}.footer-meta{display:flex;flex-direction:column}.footer-meta span{font-size:12px;color:#7f96aa}.footer-meta strong{color:#fff}.copyright{text-align:right;font-size:13px}
.honor-dialog{width:min(1040px,calc(100% - 30px));max-height:92vh;border:0;border-radius:26px;padding:0;box-shadow:0 40px 100px rgba(0,0,0,.45);overflow:hidden}.honor-dialog::backdrop{background:rgba(2,14,29,.82);backdrop-filter:blur(6px)}.dialog-close{position:absolute;right:13px;top:13px;z-index:4;width:42px;height:42px;border-radius:50%;border:0;background:rgba(255,255,255,.93);font-size:29px;color:var(--navy);cursor:pointer;box-shadow:0 6px 20px rgba(0,0,0,.16)}.dialog-layout{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(300px,.85fr);background:#fff;min-height:620px}.dialog-image-wrap{background:#0a274a;display:flex;justify-content:center;overflow:auto;max-height:92vh}.dialog-image-wrap img{width:100%;height:auto;object-fit:contain;align-self:flex-start}.dialog-info{padding:70px 42px;display:flex;flex-direction:column;justify-content:center}.dialog-year{font-size:12px;font-weight:900;letter-spacing:.18em;color:#ad6b00}.dialog-info h2{font-size:36px;line-height:1.14;margin:10px 0 28px;color:var(--navy)}.dialog-score{border-block:1px solid var(--line);padding:19px 0;display:flex;align-items:end;justify-content:space-between}.dialog-score span{color:var(--muted);font-weight:800}.dialog-score strong{font-size:46px;line-height:1;color:var(--navy)}.dialog-total{font-weight:850;color:#af6a00}.dialog-message{color:var(--muted);margin-bottom:28px}.dialog-info .btn{align-self:flex-start}
@media (max-width:980px){.header-nav{display:none}.back-home{margin-left:auto}.hero-grid{grid-template-columns:1fr;gap:20px}.hero{min-height:auto}.hero-collage{height:520px;max-width:600px;width:100%;margin:auto}.stats-grid{grid-template-columns:repeat(2,1fr)}.featured-grid{grid-template-columns:repeat(2,1fr)}.honor-grid{grid-template-columns:repeat(3,1fr)}.footer-inner{grid-template-columns:1fr 1fr}.copyright{text-align:left}.dialog-layout{grid-template-columns:1fr;max-height:92vh;overflow:auto}.dialog-image-wrap{max-height:none}.dialog-info{padding:34px}.letter-grid{grid-template-columns:100px 1fr}.letter-mark{font-size:140px}}
@media (max-width:720px){.shell{width:min(100% - 28px,1180px)}.site-header{height:68px}.brand{font-size:22px}.back-home{font-size:0;padding:10px 12px}.back-home:after{content:"← Trang chủ";font-size:12px}.hero-grid{padding-block:54px}.hero h1{font-size:42px}.hero-lead{font-size:15px}.hero-collage{height:430px}.poster-a{width:200px;height:294px;right:15px}.poster-b{width:185px;height:272px;left:4px}.poster-c{width:165px;height:242px;left:110px}.medal-badge{width:110px;height:110px;right:0;bottom:22px}.medal-badge span{font-size:28px}.year-strip-inner{align-items:flex-start;flex-direction:column;padding-block:28px}.year-tabs{width:100%;overflow:auto}.year-tab{min-width:160px}.stats-grid{grid-template-columns:1fr 1fr}.stat-card{padding:18px}.stat-card strong{font-size:34px}.split-heading{align-items:flex-start;flex-direction:column}.featured-grid{grid-template-columns:1fr}.featured-card{min-height:520px}.toolbar{align-items:stretch;flex-direction:column}.search-box{width:100%}.honor-grid{grid-template-columns:repeat(2,1fr);gap:13px}.honor-content{padding:13px}.honor-name{font-size:15px}.view-hint{display:none}.letter-grid{grid-template-columns:1fr}.letter-mark{font-size:100px;text-align:left;height:45px}.letter-copy p{font-size:18px}.closing-card{align-items:flex-start;flex-direction:column;padding:32px}.closing-card h2{font-size:29px}.footer-inner{grid-template-columns:1fr}.copyright{text-align:left}.dialog-info h2{font-size:30px}}
@media (max-width:430px){.hero h1{font-size:35px}.hero-collage{height:365px}.poster-a{width:168px;height:246px}.poster-b{width:156px;height:229px;top:85px}.poster-c{width:140px;height:205px;left:88px}.medal-badge{width:90px;height:90px;border-width:6px}.medal-badge span{font-size:23px}.medal-badge small{font-size:7px}.stats-grid{grid-template-columns:1fr}.featured-card{min-height:470px}.honor-grid{grid-template-columns:1fr 1fr}.filter-btn{padding:9px 11px}.letter-copy h2{font-size:32px}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}