/* ===== RESET ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;border:0;font:inherit;vertical-align:baseline}
html{scroll-behavior:smooth;font-size:16px;line-height:1.5;-webkit-text-size-adjust:100%}
body{min-height:100vh;background:#0A2F1F;color:#FFFFFF;font-family:'Inter','Roboto',sans-serif;font-weight:400;overflow-x:hidden;margin:0;padding:0}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{cursor:pointer;background:none;color:inherit;font:inherit}
:focus-visible{outline:2px solid #F5B041;outline-offset:3px;border-radius:2px}

/* ===== VARIABLES ===== */
:root{
  --primary-bg:#0A2F1F;
  --primary-accent:#F5B041;
  --secondary-accent:#8B0000;
  --surface-card:#1A3C2A;
  --text-primary:#FFFFFF;
  --text-secondary:#D0D0D0;
  --divider:#3E6B4E;
  --hover-highlight:#F7DC6F;
  --font-heading:'Barlow Condensed','Impact',sans-serif;
  --font-body:'Inter','Roboto',sans-serif;
  --container-max:1200px;
  --header-top-h:36px;
  --header-bottom-h:68px;
  --header-total:calc(var(--header-top-h) + var(--header-bottom-h));
  --transition-fast:0.25s ease;
  --transition-medium:0.4s ease;
  --glass-bg:rgba(26,60,42,0.72);
  --glass-border:rgba(245,176,65,0.18);
  --radius-sm:4px;
  --radius-md:8px;
  --radius-lg:16px;
  --shadow-card:0 8px 32px rgba(0,0,0,0.45);
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:0s!important;animation-duration:0s!important;animation-iteration-count:1!important;scroll-behavior:auto!important}
}

/* ===== CONTAINER ===== */
.container{width:100%;max-width:var(--container-max);margin-left:auto;margin-right:auto;padding-left:clamp(16px,4vw,40px);padding-right:clamp(16px,4vw,40px)}

/* ===== SKIP LINK ===== */
.skip-link{position:absolute;top:-100%;left:0;z-index:9999;padding:12px 24px;background:#F5B041;color:#0A2F1F;font-weight:700;font-size:1rem;border-radius:0 0 var(--radius-md) 0;transition:top var(--transition-fast)}
.skip-link:focus{top:0;outline:none}

/* ===== PROGRESS BAR ===== */
.progress-bar{position:fixed;top:0;left:0;z-index:10000;width:0%;height:4px;background:linear-gradient(90deg,#F5B041,#F7DC6F);transition:width 0.1s linear;pointer-events:none;box-shadow:0 0 12px rgba(245,176,65,0.5)}
@media(prefers-reduced-motion:reduce){.progress-bar{transition:none}}

/* ===== HEADER ===== */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(10,47,31,0.96);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 2px 24px rgba(0,0,0,0.5);width:100%}

/* header top */
.header-top{height:var(--header-top-h);display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,0.25);border-bottom:1px solid rgba(245,176,65,0.12)}
.header-top-text{font-family:var(--font-heading);font-weight:400;font-size:0.8rem;letter-spacing:3px;text-transform:uppercase;color:var(--primary-accent);opacity:0.85}

/* header bottom */
.header-bottom{height:var(--header-bottom-h);position:relative;overflow:hidden}
.header-bottom::before{content:'';position:absolute;right:0;top:0;width:clamp(80px,12vw,180px);height:100%;background:linear-gradient(135deg,transparent 48%,rgba(245,176,65,0.08) 50%,transparent 52%);pointer-events:none;z-index:0}
.header-bottom-inner{display:flex;align-items:center;justify-content:space-between;height:100%;position:relative;z-index:1}

/* brand */
.site-brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-logo{display:inline-block;width:30px;height:30px;border:2.5px solid var(--primary-accent);transform:rotate(45deg);border-radius:2px;position:relative;flex-shrink:0;transition:border-color var(--transition-fast)}
.brand-logo::after{content:'';position:absolute;top:50%;left:50%;width:10px;height:10px;background:var(--primary-accent);transform:translate(-50%,-50%);border-radius:1px;opacity:0.8}
.site-brand:hover .brand-logo{border-color:var(--hover-highlight)}
.site-brand:hover .brand-logo::after{background:var(--hover-highlight)}
.brand-text{font-family:var(--font-heading);font-weight:700;font-size:clamp(1.3rem,2.5vw,1.8rem);color:var(--primary-accent);letter-spacing:1px;line-height:1}

/* navigation toggle */
.nav-toggle{display:none;flex-direction:column;justify-content:center;align-items:center;width:44px;height:44px;gap:5px;padding:8px;border-radius:var(--radius-sm);transition:background var(--transition-fast);flex-shrink:0}
.nav-toggle:hover{background:rgba(245,176,65,0.12)}
.nav-toggle-line{display:block;width:26px;height:2.5px;background:var(--primary-accent);border-radius:2px;transition:transform var(--transition-fast),opacity var(--transition-fast);transform-origin:center}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* main nav */
.main-nav{display:flex;align-items:center}
.nav-list{display:flex;align-items:center;gap:clamp(4px,1.2vw,24px)}
.nav-list a{display:inline-block;padding:6px 4px;font-family:var(--font-heading);font-weight:500;font-size:clamp(0.95rem,1.1vw,1.15rem);color:var(--text-primary);letter-spacing:1px;position:relative;transition:color var(--transition-fast);white-space:nowrap}
.nav-list a::after{content:'';position:absolute;bottom:-2px;left:0;width:100%;height:2.5px;background:var(--primary-accent);transform:scaleX(0);transform-origin:right center;transition:transform var(--transition-fast);border-radius:2px}
.nav-list a:hover{color:var(--primary-accent)}
.nav-list a:hover::after{transform:scaleX(1);transform-origin:left center}
.nav-list a[aria-current="page"]{color:var(--primary-accent);font-weight:700}
.nav-list a[aria-current="page"]::after{transform:scaleX(1);background:var(--primary-accent);box-shadow:0 0 8px rgba(245,176,65,0.5)}

/* mobile nav */
@media(max-width:767px){
  .nav-toggle{display:flex}
  .main-nav{position:absolute;top:100%;left:0;width:100%;background:rgba(10,47,31,0.98);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);max-height:0;overflow:hidden;transition:max-height var(--transition-medium),opacity var(--transition-fast);opacity:0;box-shadow:0 16px 48px rgba(0,0,0,0.6);border-top:1px solid rgba(245,176,65,0.1)}
  .main-nav[data-open]{max-height:480px;opacity:1;transition:max-height var(--transition-medium),opacity var(--transition-fast)}
  .nav-list{flex-direction:column;align-items:stretch;padding:16px 24px 24px;gap:2px;width:100%}
  .nav-list a{display:block;padding:12px 8px;font-size:1.1rem;border-bottom:1px solid rgba(62,107,78,0.35);white-space:normal;width:100%}
  .nav-list a::after{display:none}
  .nav-list a[aria-current="page"]{color:var(--primary-accent);border-left:4px solid var(--primary-accent);padding-left:12px;background:rgba(245,176,65,0.06)}
}

@media(min-width:768px)and(max-width:1024px){
  .nav-list{gap:12px}
  .nav-list a{font-size:0.95rem}
}

/* ===== FOOTER ===== */
.site-footer{background:#071F14;border-top:2px solid rgba(245,176,65,0.15);padding:0 0 0;margin-top:0;position:relative}
.site-footer::before{content:'';position:absolute;top:-2px;left:0;width:100%;height:2px;background:linear-gradient(90deg,transparent 10%,#F5B041 30%,#F7DC6F 60%,transparent 90%);opacity:0.4;pointer-events:none}

.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:clamp(24px,4vw,60px);padding:clamp(32px,5vw,56px) 0 clamp(24px,3vw,40px)}
.footer-brand-name{font-family:var(--font-heading);font-weight:700;font-size:clamp(1.5rem,2.5vw,2rem);color:var(--primary-accent);margin-bottom:10px;letter-spacing:1px}
.footer-tagline{color:var(--text-secondary);font-size:0.95rem;line-height:1.6;margin-bottom:14px;max-width:360px}
.footer-trust{color:rgba(208,208,208,0.65);font-size:0.8rem;line-height:1.5;border-left:3px solid rgba(245,176,65,0.3);padding-left:14px;margin-top:8px}

.footer-heading{font-family:var(--font-heading);font-weight:600;font-size:1.1rem;color:var(--primary-accent);margin-bottom:16px;letter-spacing:2px;text-transform:uppercase;position:relative;padding-bottom:8px}
.footer-heading::after{content:'';position:absolute;bottom:0;left:0;width:40px;height:2px;background:var(--primary-accent);opacity:0.6}

.footer-link-list{display:flex;flex-direction:column;gap:6px}
.footer-link-list a{display:inline-block;color:var(--text-secondary);font-size:0.9rem;padding:4px 0;transition:color var(--transition-fast),padding-left var(--transition-fast)}
.footer-link-list a:hover{color:var(--primary-accent);padding-left:6px}

.footer-contact-item{color:var(--text-secondary);font-size:0.9rem;margin-bottom:8px;line-height:1.5}
.footer-contact-item a{color:var(--hover-highlight);transition:color var(--transition-fast);border-bottom:1px solid transparent}
.footer-contact-item a:hover{color:var(--primary-accent);border-bottom-color:var(--primary-accent)}

.footer-bottom{border-top:1px solid rgba(62,107,78,0.45);padding:16px 0;background:rgba(0,0,0,0.25)}
.footer-bottom-inner{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 24px}
.footer-icp{color:rgba(208,208,208,0.55);font-size:0.8rem;letter-spacing:1px}
.footer-copy{color:rgba(208,208,208,0.45);font-size:0.78rem}

@media(max-width:767px){
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-top:32px;padding-bottom:24px}
  .footer-tagline{max-width:none}
  .footer-bottom-inner{flex-direction:column;text-align:center}
}
@media(min-width:768px)and(max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/3}
  .footer-tagline{max-width:none}
}

/* ===== BUTTONS ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;font-family:var(--font-heading);font-weight:600;font-size:1rem;letter-spacing:1.5px;border-radius:var(--radius-md);transition:all var(--transition-fast);text-transform:uppercase;position:relative;overflow:hidden}
.btn-primary{background:linear-gradient(135deg,#F5B041,#E09A2A);color:#0A2F1F;border:none;box-shadow:0 4px 16px rgba(245,176,65,0.3)}
.btn-primary:hover{box-shadow:0 6px 24px rgba(245,176,65,0.5);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{background:transparent;color:var(--primary-accent);border:2px solid var(--primary-accent)}
.btn-secondary:hover{background:rgba(245,176,65,0.1);border-color:var(--hover-highlight);color:var(--hover-highlight)}
.btn-danger{background:var(--secondary-accent);color:#FFFFFF;border:none;box-shadow:0 4px 12px rgba(139,0,0,0.3)}
.btn-danger:hover{background:#A00000;transform:translateY(-2px)}
.btn-sm{padding:8px 18px;font-size:0.85rem;border-radius:var(--radius-sm)}
.btn-lg{padding:16px 36px;font-size:1.15rem;border-radius:var(--radius-md)}

/* ===== CARDS ===== */
.card{background:var(--glass-bg);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:clamp(16px,2.5vw,28px);box-shadow:var(--shadow-card);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}
.card:hover{border-color:rgba(245,176,65,0.4);box-shadow:0 12px 40px rgba(0,0,0,0.55)}
.card-glow{border-color:rgba(245,176,65,0.25);box-shadow:0 0 24px rgba(245,176,65,0.08)}
.card-glow:hover{border-color:var(--primary-accent);box-shadow:0 0 32px rgba(245,176,65,0.18)}

/* ===== SECTION TITLE ===== */
.section-title{font-family:var(--font-heading);font-weight:700;font-size:var(--h2,clamp(1.8rem,3.5vw,2.8rem));color:var(--text-primary);padding-left:18px;border-left:5px solid var(--primary-accent);margin-bottom:clamp(16px,2.5vw,32px);line-height:1.15;letter-spacing:0.5px}
.section-title .section-number{color:var(--primary-accent);font-weight:700;margin-right:12px;opacity:0.7}
.section-subtitle{font-family:var(--font-heading);font-weight:400;font-size:1.05rem;color:var(--text-secondary);letter-spacing:2px;text-transform:uppercase;margin-bottom:6px}

/* ===== DIVIDER ===== */
.divider{height:1px;background:linear-gradient(90deg,transparent,#3E6B4E,transparent);margin:clamp(24px,4vw,48px) 0;border:none}
.divider-gold{height:2px;background:linear-gradient(90deg,transparent,#F5B041 40%,#F7DC6F 60%,transparent);opacity:0.5;margin:clamp(16px,3vw,36px) 0}

/* ===== TAG / BADGE ===== */
.tag{display:inline-block;padding:4px 14px;font-family:var(--font-heading);font-weight:600;font-size:0.75rem;letter-spacing:1px;border-radius:20px;text-transform:uppercase}
.tag-sport{background:rgba(139,0,0,0.2);color:#D04040;border:1px solid rgba(139,0,0,0.35)}
.tag-live{background:rgba(245,176,65,0.15);color:var(--primary-accent);border:1px solid rgba(245,176,65,0.3)}
.tag-upcoming{background:rgba(62,107,78,0.25);color:var(--text-secondary);border:1px solid rgba(62,107,78,0.3)}

/* ===== BREADCRUMB ===== */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;padding:12px 0;font-size:0.85rem;color:var(--text-secondary)}
.breadcrumb a{color:var(--text-secondary);transition:color var(--transition-fast);border-bottom:1px solid transparent}
.breadcrumb a:hover{color:var(--primary-accent);border-bottom-color:var(--primary-accent)}
.breadcrumb .breadcrumb-current{color:var(--primary-accent);font-weight:600}
.breadcrumb .breadcrumb-sep{color:var(--divider);font-size:0.75rem;user-select:none}

/* ===== RESPONSIVE IMAGE CONTAINER ===== */
.img-container{position:relative;width:100%;overflow:hidden;border-radius:var(--radius-md);background:var(--surface-card);aspect-ratio:16/9}
.img-container img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform var(--transition-medium)}
.img-container:hover img{transform:scale(1.03)}
.img-container .img-placeholder{display:flex;align-items:center;justify-content:center;width:100%;height:100%;color:var(--text-secondary);font-family:var(--font-heading);font-size:0.9rem;background:linear-gradient(135deg,var(--surface-card),#132F20)}
.img-container-portrait{aspect-ratio:3/4}
.img-container-wide{aspect-ratio:21/9}
.img-container-square{aspect-ratio:1/1}

/* ===== GRID HELPERS ===== */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(16px,2.5vw,32px)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2vw,28px)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(12px,1.5vw,24px)}
@media(max-width:767px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
}
@media(min-width:768px)and(max-width:1024px){
  .grid-3{grid-template-columns:1fr 1fr}
  .grid-4{grid-template-columns:1fr 1fr}
}

/* ===== UTILITY ===== */
.text-center{text-align:center}
.text-accent{color:var(--primary-accent)}
.text-secondary{color:var(--text-secondary)}
.text-danger{color:var(--secondary-accent)}
.fw-bold{font-weight:700}
.fw-light{font-weight:300}
.mt-1{margin-top:8px}
.mt-2{margin-top:16px}
.mt-3{margin-top:24px}
.mt-4{margin-top:32px}
.mb-1{margin-bottom:8px}
.mb-2{margin-bottom:16px}
.mb-3{margin-bottom:24px}
.mb-4{margin-bottom:32px}
.py-section{padding-top:clamp(32px,5vw,64px);padding-bottom:clamp(32px,5vw,64px)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ===== TAB PANEL (共享标签页交互) ===== */
.tab-list{display:flex;flex-wrap:wrap;gap:4px;border-bottom:1px solid var(--divider);margin-bottom:clamp(16px,2vw,28px)}
.tab-btn{padding:10px 20px;font-family:var(--font-heading);font-weight:500;font-size:0.95rem;color:var(--text-secondary);background:none;border:none;border-bottom:3px solid transparent;transition:all var(--transition-fast);cursor:pointer;border-radius:var(--radius-sm) var(--radius-sm) 0 0}
.tab-btn:hover{color:var(--primary-accent);background:rgba(245,176,65,0.04)}
.tab-btn[aria-selected="true"]{color:var(--primary-accent);font-weight:600;border-bottom-color:var(--primary-accent);background:rgba(245,176,65,0.06)}
.tab-panel{padding:clamp(8px,1.5vw,20px) 0;animation:fadeIn 0.3s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@media(prefers-reduced-motion:reduce){.tab-panel{animation:none}}