/* =============================================
   苍色之光与魔剑锻造师 - Forge & Pale Light Theme
   Molten orange + pale cyan glow on anvil grays
   Smithing workshop aesthetic on light parchment
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;700;900&family=Noto+Serif+SC:wght@400;600;700&display=swap');

/* ── Custom Properties ── */
:root {
  /* Forge palette */
  --forge-orange: #e05a1f;
  --forge-orange-glow: #f47835;
  --forge-orange-light: #fde8db;
  --pale-cyan: #4db8c4;
  --pale-cyan-glow: #7ad8e0;
  --pale-cyan-light: #daf5f7;
  --anvil-dark: #3d3834;
  --anvil: #5a5550;
  --anvil-light: #8a8580;
  --anvil-pale: #bfbab5;
  --iron: #2d2825;
  --spark: #fff3e0;
  
  /* Background */
  --bg: #faf8f5;
  --bg-card: #ffffff;
  --bg-alt: #f3f0eb;
  
  /* Text */
  --text: #2d2825;
  --text-light: #6b6560;
  --text-muted: #8a8580;
  
  /* Accent usage */
  --accent: var(--forge-orange);
  --accent-hover: var(--forge-orange-glow);
  --accent-light: var(--forge-orange-light);
  --accent-secondary: var(--pale-cyan);
  --accent-secondary-light: var(--pale-cyan-light);
  
  /* Header */
  --bg-header: var(--iron);
  --text-header: #e8e4df;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(45,40,37,0.08);
  --shadow-md: 0 4px 12px rgba(45,40,37,0.10);
  --shadow-lg: 0 8px 24px rgba(45,40,37,0.12);
  --shadow-glow-orange: 0 0 20px rgba(224,90,31,0.25);
  --shadow-glow-cyan: 0 0 20px rgba(77,184,196,0.20);
  
  /* Borders */
  --border: #e0dcd6;
  --border-light: #ebe7e2;
  
  /* Sizing */
  --max-width: 1100px;
  --radius: 8px;
  --radius-lg: 12px;
  
  /* Transitions */
  --transition: 0.25s ease;
}

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Noto Sans SC',system-ui,-apple-system,sans-serif;color:var(--text);background:var(--bg);line-height:1.7;overflow-x:hidden}

/* ── Typography ── */
h1,h2,h3,h4{font-family:'Noto Serif SC','Noto Sans SC',serif;font-weight:700;line-height:1.3}
h1{font-size:2.2rem;margin-bottom:1rem}
h2{font-size:1.65rem;margin-bottom:0.75rem}
h3{font-size:1.2rem;margin-bottom:0.5rem}
p{margin-bottom:1rem}
a{color:var(--accent);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent-hover)}
img{max-width:100%;height:auto;display:block}

/* ── Utility classes ── */
.text-center{text-align:center}
.text-muted{color:var(--text-muted)}
.text-accent{color:var(--accent)}
.mt-1{margin-top:0.5rem}
.mt-2{margin-top:1rem}
.mt-3{margin-top:1.5rem}
.mt-4{margin-top:2rem}
.mb-0{margin-bottom:0}
.pb-0{padding-bottom:0}
.max-w-800{max-width:800px;margin-left:auto;margin-right:auto}
.container{max-width:var(--max-width);margin:0 auto;padding:0 1.5rem}

/* ── Header ── */
header{background:var(--bg-header);border-bottom:3px solid var(--forge-orange);position:sticky;top:0;z-index:100}
header .container{display:flex;align-items:center;justify-content:space-between;padding-top:0.5rem;padding-bottom:0.5rem}
header .logo{font-family:'Noto Serif SC',serif;font-size:1.1rem;font-weight:700;color:var(--text-header);display:flex;align-items:center;gap:0.5rem}
header .logo-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--forge-orange),var(--pale-cyan));border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:1.2rem}
header nav{display:flex;align-items:center;gap:1.5rem}
header nav a{color:var(--anvil-pale);font-size:0.9rem;font-weight:500;transition:color var(--transition);white-space:nowrap}
header nav a:hover{color:var(--forge-orange-glow)}
header nav a.active{color:var(--forge-orange-glow)}
header .btn-hero{display:inline-block;background:linear-gradient(135deg,var(--forge-orange),var(--forge-orange-glow));color:#fff;padding:0.5rem 1.25rem;border-radius:20px;font-weight:600;font-size:0.85rem;box-shadow:0 0 12px rgba(224,90,31,0.35);transition:all var(--transition)}
header .btn-hero:hover{transform:translateY(-1px);box-shadow:0 0 20px rgba(224,90,31,0.5);color:#fff}
.hamburger{display:none;background:none;border:none;color:var(--text-header);font-size:1.5rem;cursor:pointer}

/* ── Hero ── */
.hero{position:relative;background:linear-gradient(160deg,var(--iron) 0%,#3d3834 40%,var(--anvil) 70%,var(--bg) 100%);padding:4rem 0 5rem;text-align:center;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 30% 20%,rgba(224,90,31,0.18),transparent 60%),radial-gradient(ellipse at 70% 50%,rgba(77,184,196,0.12),transparent 60%),radial-gradient(ellipse at 50% 80%,rgba(255,243,224,0.15),transparent 50%);pointer-events:none}
.hero .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0.15;filter:brightness(0.8)}
.hero-home .hero-bg{background-image:url('../img/cover.webp')}
.hero-story .hero-bg{background-image:url('../img/screenshot-01.jpg')}
.hero-guide .hero-bg{background-image:url('../img/screenshot-03.jpg')}
.hero-characters .hero-bg{background-image:url('../img/screenshot-04.jpg')}
.hero-faq .hero-bg{background-image:url('../img/header.jpg')}
.hero .container{position:relative;z-index:1}
.hero h1{font-size:2.6rem;font-weight:900;background:linear-gradient(135deg,var(--forge-orange-glow),var(--pale-cyan-glow));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1rem;text-shadow:none}
.hero .hero-subtitle{font-size:1.1rem;color:var(--anvil-pale);max-width:650px;margin:0 auto 2rem;line-height:1.8}
.hero .hero-tags{display:flex;flex-wrap:wrap;gap:0.5rem;justify-content:center;margin-bottom:2rem}
.hero .hero-tags span{background:rgba(255,255,255,0.08);color:var(--pale-cyan-glow);padding:0.3rem 0.9rem;border-radius:20px;font-size:0.82rem;border:1px solid rgba(77,184,196,0.25)}
.hero .btn-hero{display:inline-block;background:linear-gradient(135deg,var(--forge-orange),var(--forge-orange-glow));color:#fff;padding:0.85rem 2.5rem;border-radius:25px;font-size:1.05rem;font-weight:700;box-shadow:0 0 24px rgba(224,90,31,0.4);transition:all var(--transition)}
.hero .btn-hero:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(224,90,31,0.55);color:#fff}
.hero-visual{width:200px;height:200px;margin:0 auto 1.5rem;border-radius:50%;background:radial-gradient(circle,var(--pale-cyan-light),var(--anvil-light));display:flex;align-items:center;justify-content:center;font-size:4rem;box-shadow:0 0 40px rgba(77,184,196,0.25),0 0 60px rgba(224,90,31,0.15)}
.page-hero{background:linear-gradient(160deg,var(--iron),var(--anvil-dark));padding:3rem 0;text-align:center;position:relative;overflow:hidden}
.page-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at center,rgba(224,90,31,0.12),transparent 70%);pointer-events:none}
.page-hero h1{color:var(--forge-orange-glow);font-size:2rem;margin-bottom:0.5rem}
.page-hero .page-hero-sub{color:var(--anvil-pale);font-size:0.95rem}

/* ── Sections ── */
section{padding:3.5rem 0}
.section-alt{background:var(--bg-alt)}
.section-title{text-align:center;margin-bottom:2.5rem}
.section-title h2{color:var(--anvil-dark);margin-bottom:0.3rem}
.section-title p{color:var(--text-muted);font-size:0.95rem}
.accent-line{width:60px;height:3px;background:linear-gradient(90deg,var(--forge-orange),var(--pale-cyan));margin:1rem auto;border-radius:2px}
.forge-divider{text-align:center;margin:2rem 0;color:var(--anvil-light);font-size:1.2rem;letter-spacing:0.5rem}
.forge-divider::before,.forge-divider::after{content:'◆';color:var(--forge-orange);margin:0 0.5rem;font-size:0.7rem;vertical-align:middle}

/* ── Info Cards ── */
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.25rem;margin-bottom:2rem}
.info-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius);padding:1.25rem;text-align:center;transition:all var(--transition);position:relative;overflow:hidden}
.info-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--forge-orange),var(--pale-cyan));opacity:0;transition:opacity var(--transition)}
.info-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.info-card:hover::before{opacity:1}
.info-card .info-icon{font-size:1.8rem;margin-bottom:0.5rem}
.info-card h3{font-size:0.9rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:0.3rem}
.info-card .info-value{font-size:1.15rem;font-weight:700;color:var(--anvil-dark)}

/* ── Feature Cards ── */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}
.feature-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:1.75rem;transition:all var(--transition);border-left:4px solid var(--forge-orange)}
.feature-card:hover{box-shadow:var(--shadow-md);border-left-color:var(--pale-cyan)}
.feature-card .feature-icon{width:48px;height:48px;border-radius:10px;background:linear-gradient(135deg,var(--forge-orange-light),var(--pale-cyan-light));display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:1rem}
.feature-card h3{color:var(--anvil-dark);margin-bottom:0.5rem}
.feature-card p{color:var(--text-light);font-size:0.95rem;margin-bottom:0}

/* ── Card Grid ── */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem}

/* ── Story Blocks ── */
.story-block{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:1.75rem;margin-bottom:1.5rem;border-left:4px solid var(--forge-orange);transition:all var(--transition)}
.story-block:hover{border-left-color:var(--pale-cyan);box-shadow:var(--shadow-md)}
.story-block h3{color:var(--anvil-dark);margin-bottom:0.5rem}
.story-block .story-chapter{display:inline-block;background:var(--accent-light);color:var(--forge-orange);padding:0.2rem 0.7rem;border-radius:4px;font-size:0.78rem;font-weight:600;margin-bottom:0.75rem}

/* ── Character Cards ── */
.char-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);overflow:hidden;transition:all var(--transition)}
.char-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.char-card-header{background:var(--anvil-dark);padding:1rem;text-align:center;border-bottom:2px solid var(--forge-orange)}
.char-card-header h3{color:var(--forge-orange-glow);margin-bottom:0.25rem;font-size:1.1rem}
.char-card-header .char-role{color:var(--pale-cyan-glow);font-size:0.8rem}
.char-card-body{padding:1.25rem}
.char-avatar{width:80px;height:80px;border-radius:50%;margin:0 auto 1rem;display:flex;align-items:center;justify-content:center;font-size:2.5rem;border:3px solid var(--border-light);background:linear-gradient(135deg,var(--accent-light),var(--accent-secondary-light))}
.char-card-body p{color:var(--text-light);font-size:0.9rem;margin-bottom:0}

/* ── Guide Steps ── */
.guide-step{display:flex;gap:1.5rem;align-items:flex-start;margin-bottom:2rem}
.guide-step-num{flex-shrink:0;width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--forge-orange),var(--forge-orange-glow));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:1.2rem;box-shadow:0 0 16px rgba(224,90,31,0.3)}
.guide-step-content{flex:1}
.guide-step-content h3{color:var(--anvil-dark);margin-bottom:0.3rem}
.guide-step-content p{color:var(--text-light);font-size:0.95rem}

/* ── Tip Box ── */
.tip-box{background:var(--pale-cyan-light);border-left:4px solid var(--pale-cyan);border-radius:0 var(--radius) var(--radius) 0;padding:1.25rem 1.5rem;margin:1.5rem 0;color:var(--anvil-dark);font-size:0.95rem}
.tip-box strong{color:var(--pale-cyan)}

/* ── Screenshot Gallery ── */
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1rem}
.gallery-item{border-radius:var(--radius);overflow:hidden;cursor:pointer;transition:all var(--transition);position:relative;border:2px solid var(--border-light)}
.gallery-item:hover{box-shadow:var(--shadow-glow-orange);border-color:var(--forge-orange)}
.gallery-item:hover img{transform:scale(1.03)}
.gallery-item img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9;transition:transform var(--transition)}

/* ── CTA Banner ── */
.cta-banner{background:linear-gradient(135deg,var(--iron),var(--anvil-dark));padding:3rem 2rem;text-align:center;border-radius:var(--radius-lg);position:relative;overflow:hidden;margin-top:2rem}
.cta-banner::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 50% 50%,rgba(224,90,31,0.15),transparent 70%),radial-gradient(ellipse at 80% 20%,rgba(77,184,196,0.08),transparent 60%);pointer-events:none}
.cta-banner>*{position:relative;z-index:1}
.cta-banner h2{color:var(--forge-orange-glow);margin-bottom:0.5rem}
.cta-banner p{color:var(--anvil-pale);margin-bottom:1.5rem}
.cta-banner .btn-hero{display:inline-block;background:linear-gradient(135deg,var(--forge-orange),var(--forge-orange-glow));color:#fff;padding:0.85rem 2.5rem;border-radius:25px;font-size:1.05rem;font-weight:700;box-shadow:0 0 24px rgba(224,90,31,0.4);transition:all var(--transition)}
.cta-banner .btn-hero:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(224,90,31,0.55);color:#fff}

/* ── FAQ Accordion ── */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid var(--border-light);border-radius:var(--radius);margin-bottom:0.75rem;overflow:hidden;background:var(--bg-card)}
.faq-question{width:100%;padding:1.1rem 1.5rem;text-align:left;background:var(--bg-card);border:none;cursor:pointer;font-size:1rem;font-weight:600;color:var(--anvil-dark);display:flex;justify-content:space-between;align-items:center;transition:all var(--transition);font-family:inherit}
.faq-question:hover{background:var(--bg-alt)}
.faq-question .faq-toggle{font-size:1.3rem;color:var(--forge-orange);transition:transform var(--transition);flex-shrink:0;margin-left:1rem}
.faq-item.active .faq-toggle{transform:rotate(45deg);color:var(--pale-cyan)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.4s ease}
.faq-item.active .faq-answer{max-height:500px}
.faq-answer-inner{padding:0 1.5rem 1.25rem;color:var(--text-light);font-size:0.95rem;line-height:1.8}

/* ── Reviews / Stats ── */
.review-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}
.review-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:1.5rem;position:relative}
.review-card::before{content:'"';position:absolute;top:0.5rem;right:1rem;font-size:3rem;color:var(--forge-orange-light);line-height:1;font-family:'Noto Serif SC',serif}
.review-card p{color:var(--text-light);font-size:0.95rem;font-style:italic}
.review-card .reviewer{color:var(--text-muted);font-size:0.82rem;margin-top:0.5rem}
.rating-badge{display:inline-flex;align-items:center;gap:0.3rem;color:var(--forge-orange);font-weight:700;margin-bottom:0.5rem}

/* ── Stats Row ── */
.stats-row{display:flex;flex-wrap:wrap;gap:2rem;justify-content:center;text-align:center;padding:2rem 0}
.stat-item h3{font-size:2rem;font-weight:900;color:var(--forge-orange);background:linear-gradient(135deg,var(--forge-orange),var(--forge-orange-glow));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-item p{color:var(--text-muted);font-size:0.85rem;text-transform:uppercase;letter-spacing:0.05em}

/* ── Tags ── */
.tags{display:flex;flex-wrap:wrap;gap:0.5rem}
.tag{display:inline-block;padding:0.25rem 0.8rem;border-radius:20px;font-size:0.8rem;font-weight:500}
.tag-orange{background:var(--forge-orange-light);color:var(--forge-orange)}
.tag-cyan{background:var(--pale-cyan-light);color:var(--pale-cyan)}
.tag-gray{background:var(--bg-alt);color:var(--anvil)}

/* ── Breadcrumbs ── */
.breadcrumbs{padding:1rem 0;font-size:0.85rem;color:var(--text-muted)}
.breadcrumbs a{color:var(--text-muted)}
.breadcrumbs a:hover{color:var(--accent)}

/* ── Download Card ── */
.download-card{background:var(--bg-card);border:2px solid var(--forge-orange);border-radius:var(--radius-lg);padding:2rem;text-align:center;max-width:500px;margin:0 auto;box-shadow:0 0 24px rgba(224,90,31,0.15)}
.download-card h3{color:var(--anvil-dark)}
.download-card p{color:var(--text-light);font-size:0.9rem;margin-bottom:1.25rem}
.download-card .btn-hero{display:inline-block;background:linear-gradient(135deg,var(--forge-orange),var(--forge-orange-glow));color:#fff;padding:0.85rem 2.5rem;border-radius:25px;font-size:1.05rem;font-weight:700;box-shadow:0 0 20px rgba(224,90,31,0.35);transition:all var(--transition)}
.download-card .btn-hero:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(224,90,31,0.5);color:#fff}

/* ── Req Table ── */
.req-table{width:100%;max-width:600px;margin:0 auto;border-collapse:collapse}
.req-table th,.req-table td{padding:0.75rem 1rem;border-bottom:1px solid var(--border-light);text-align:left;font-size:0.9rem}
.req-table th{color:var(--text-muted);font-weight:500;width:120px}
.req-table td{color:var(--anvil-dark)}

/* ── Timeline ── */
.timeline{max-width:700px;margin:0 auto;position:relative}
.timeline::before{content:'';position:absolute;left:16px;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--forge-orange),var(--pale-cyan))}
.timeline-item{display:flex;gap:1.5rem;margin-bottom:1.75rem;position:relative}
.timeline-dot{flex-shrink:0;width:34px;height:34px;border-radius:50%;background:var(--bg-card);border:3px solid var(--forge-orange);display:flex;align-items:center;justify-content:center;font-size:0.7rem;z-index:1}
.timeline-content h4{color:var(--anvil-dark);margin-bottom:0.25rem}
.timeline-content p{color:var(--text-light);font-size:0.9rem;margin-bottom:0}
.timeline-content .timeline-date{color:var(--text-muted);font-size:0.78rem}

/* ── Blockquote ── */
blockquote{background:var(--bg-alt);border-left:4px solid var(--forge-orange);padding:1rem 1.5rem;margin:1.5rem 0;border-radius:0 var(--radius) var(--radius) 0;font-style:italic;color:var(--text-light)}

/* ── Footer ── */
footer{background:var(--iron);padding:2rem 0;text-align:center;border-top:3px solid var(--forge-orange)}
footer p{color:var(--anvil-light);font-size:0.82rem;margin-bottom:0}

/* ── Lightbox ── */
.lightbox{display:none;position:fixed;inset:0;background:rgba(45,40,37,0.92);z-index:1000;align-items:center;justify-content:center}
.lightbox.show{display:flex}
.lightbox img{max-width:90vw;max-height:85vh;border-radius:var(--radius);box-shadow:0 0 40px rgba(224,90,31,0.3)}
.lightbox-close{position:absolute;top:1.5rem;right:2rem;color:#fff;font-size:2rem;cursor:pointer;background:none;border:none;transition:color var(--transition)}
.lightbox-close:hover{color:var(--forge-orange-glow)}

/* ── Responsive ── */
@media (max-width: 768px) {
  .hamburger{display:block}
  header nav{position:fixed;top:0;right:-100%;width:260px;height:100vh;background:var(--iron);flex-direction:column;padding:4rem 2rem 2rem;gap:1.5rem;transition:right 0.3s ease;z-index:200}
  header nav.open{right:0;box-shadow:-4px 0 20px rgba(0,0,0,0.3)}
  header nav a{font-size:1rem}
  .hero h1{font-size:1.8rem}
  .hero{padding:3rem 0 4rem}
  .feature-grid{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr}
  .guide-step{flex-direction:column;align-items:center;text-align:center}
  .info-grid{grid-template-columns:repeat(2,1fr)}
  .card-grid{grid-template-columns:1fr}
  .stats-row{gap:1.5rem}
}

@media (max-width: 480px) {
  .info-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .hero h1{font-size:1.5rem}
  .hero .hero-subtitle{font-size:0.95rem}
  section{padding:2.5rem 0}
}