/* ===== 祈愿超广角画质助手 - 全局样式 (粉白配色) ===== */

:root{
  --bg:               #ffffff;
  --bg-white:         #ffffff;
  --border:           #e2e8f0;
  --border-color:     #e2e8f0;
  --border-light:     #fce4ec;
  --border-hover:     #f8bbd0;
  --text:             #0b1220;
  --text-sec:         #475569;
  --text-muted:       #94a3b8;
  --text-secondary:   #64748b;
  --primary:          #FF6B8A;
  --primary-hover:    #E85D7A;
  --primary-light:    #FFF0F5;
  --primary-subtle:   rgba(255,107,138,.04);
  --success:          #10b981;
  --success-light:    #ecfdf5;
  --warning:          #f59e0b;
  --warning-light:    #fffbeb;
  --purple:           #8b5cf6;
  --purple-light:     #f5f3ff;
  --radius:           18px;
  --radius-sm:        12px;
  --shadow:           0 1px 3px rgba(15,23,42,.04), 0 1px 2px rgba(15,23,42,.02);
  --shadow-sm:        0 1px 3px rgba(15,23,42,.04), 0 1px 2px rgba(15,23,42,.02);
  --shadow-md:        0 18px 42px rgba(15,23,42,.08), 0 4px 14px rgba(15,23,42,.05);
  --gradient:         linear-gradient(135deg,#FF6B8A,#EC4899);
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; overflow-y:scroll; background:#020617; }
body{
  font-family: 'DM Sans', 'Noto Sans SC', sans-serif;
  background: var(--bg);
  color: var(--text-sec);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ===== 容器 ===== */
.container { max-width:1280px; margin:0 auto; padding:0 24px; }

/* ===== 顶部通知条 ===== */
.announcement-bar{
  position:fixed; top:0; left:0; right:0; z-index:101;
  height:36px; display:flex; align-items:center; justify-content:center;
  background:linear-gradient(135deg,#FF6B8A,#EC4899);
  color:#fff; font-size:13px; cursor:pointer;
  transition:transform .3s ease, opacity .3s ease;
  user-select:none; text-decoration:none;
  box-shadow:0 1px 8px rgba(255,107,138,.25);
}
.announcement-bar.hidden{
  transform:translateY(-100%); opacity:0;
  pointer-events:none;
}
.announcement-bar .ann-inner{
  display:flex; align-items:center; justify-content:center; gap:10px;
  max-width:1280px; width:100%; padding:0 48px;
}
.announcement-bar .ann-text{
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
  display:flex; align-items:center; justify-content:center; gap:6px;
  min-width:0;
}
.announcement-bar .ann-text i{ font-size:13px; opacity:.95; flex-shrink:0; }
.announcement-bar .ann-btn{
  flex-shrink:0; display:inline-flex; align-items:center; gap:4px;
  padding:3px 12px; border-radius:100px;
  background:rgba(255,255,255,.25); color:#fff;
  font-size:12px; font-weight:600;
  white-space:nowrap; transition:background .2s;
  text-decoration:none;
}
.announcement-bar:hover .ann-btn{ background:rgba(255,255,255,.4); }
.announcement-bar .ann-close{
  position:absolute; right:10px; top:50%; transform:translateY(-50%);
  z-index:2; background:rgba(255,255,255,.2); border:none;
  color:#fff; width:24px; height:24px; border-radius:50%;
  font-size:14px; cursor:pointer; transition:background .2s;
  display:flex; align-items:center; justify-content:center;
}
.announcement-bar .ann-close:hover{ background:rgba(255,255,255,.4); }
@media(max-width:640px){
  .announcement-bar{ height:32px; font-size:12px; }
  .announcement-bar .ann-inner{ padding:0 42px; gap:6px; }
  .announcement-bar .ann-btn{ font-size:11px; padding:1px 8px; }
}
/* 通知条展开时整个页面下移 */
body.has-announcement{ padding-top:36px; }
body.has-announcement header{ top:36px; }
@media(max-width:640px){
  body.has-announcement{ padding-top:32px; }
  body.has-announcement header{ top:32px; }
}

/* ===== Header ===== */
header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  background: rgba(255,255,255,.94); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border); height:68px;
}
.header-inner{
  max-width:1280px; margin:0 auto; padding:0 24px;
  display:flex; align-items:center; justify-content:space-between; height:100%;
}
.brand{ display:flex; align-items:center; gap:12px; text-decoration:none; }
.brand-mark{
  width:42px; height:42px; border-radius:12px;
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0; overflow:hidden;
}
.brand-mark img{ width:100%; height:100%; object-fit:contain; }
.brand-text{ font-size:18px; font-weight:700; color:var(--text); }
.brand-sub{ font-size:11px; color:var(--text-muted); }
.nav-links{ display:flex; gap:4px; list-style:none; }
.nav-links a{
  padding:8px 18px; border-radius:8px; font-size:14px; font-weight:500;
  color:var(--text-sec); text-decoration:none; transition:all .2s;
}
.nav-links a:hover{ color:var(--primary); background:var(--primary-light); }
.nav-links a.active{ color:var(--primary); background:var(--primary-light); font-weight:600; }
.header-actions{ display:flex; gap:10px; align-items:center; }

/* ===== 按钮 ===== */
.btn{
  display:inline-flex; align-items:center; gap:6px;
  padding:9px 22px; border-radius:8px; font-size:14px; font-weight:600;
  text-decoration:none; cursor:pointer; border:none; font-family:inherit;
  transition:all .25s; white-space:nowrap;
}
.btn-outline{
  background:transparent; border:1.5px solid var(--border); color:var(--text-sec);
}
.btn-outline:hover{ border-color:var(--border-hover); color:var(--text); }
.btn-primary{ background:var(--primary); color:#fff; }
.btn-primary:hover{
  background:var(--primary-hover); transform:translateY(-1px);
  box-shadow:0 4px 14px rgba(255,107,138,.3);
}
.btn-primary-lg{
  padding:15px 40px; background:var(--primary); color:#fff;
  border-radius:8px; font-size:16px; font-weight:700;
  display:inline-flex; align-items:center; gap:8px; text-decoration:none;
  transition:all .25s; border:none; cursor:pointer; font-family:inherit;
}
.btn-primary-lg:hover{
  background:var(--primary-hover); transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(255,107,138,.35);
}
.btn-secondary-lg{
  padding:15px 40px; border:1.5px solid var(--border); color:var(--text-sec);
  background:var(--bg-white); border-radius:8px; font-size:16px; font-weight:600;
  display:inline-flex; align-items:center; gap:8px; text-decoration:none;
  transition:all .25s; cursor:pointer; font-family:inherit;
}
.btn-secondary-lg:hover{ border-color:var(--primary); color:var(--primary); }

/* ===== Section Header ===== */
.section-header{ text-align:center; margin-bottom:48px; }
.section-header .section-label{
  display:inline-block; background:var(--primary-light); color:var(--primary);
  padding:6px 18px; border-radius:100px; font-size:12px; font-weight:700;
  margin-bottom:16px; letter-spacing:.04em; text-transform:uppercase;
}
.section-header h2{ font-size:32px; font-weight:700; color:var(--text); margin-bottom:12px; }
.section-header p{ font-size:16px; color:var(--text-sec); max-width:560px; margin:0 auto; }

/* ===== Reveal 动画 ===== */
.reveal{ opacity:0; transform:translateY(28px); transition:opacity .65s, transform .65s; }
.reveal.visible{ opacity:1; transform:translateY(0); }

/* ===== 回到顶部 ===== */
.back-to-top{
  position:fixed; bottom:32px; right:32px; z-index:99;
  width:44px; height:44px; border-radius:12px;
  background:var(--bg-white); border:1px solid var(--border);
  display:flex; align-items:center; justify-content:center;
  font-size:18px; color:var(--text-sec); cursor:pointer;
  opacity:0; transform:translateY(12px); pointer-events:none;
  transition:all .3s; box-shadow:var(--shadow);
}
.back-to-top.show{ opacity:1; transform:translateY(0); pointer-events:auto; }
.back-to-top:hover{ border-color:var(--primary); color:var(--primary); box-shadow:var(--shadow-md); }

/* ===== Footer ===== */
footer{
  padding:64px 48px 32px;
  background:linear-gradient(180deg,#1e293b 0%,#162032 50%,#0f172a 100%);
  color:#94a3b8;
}
.footer-grid{
  max-width:1280px; margin:0 auto;
  display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:48px;
}
.footer-grid h4{ font-size:14px; font-weight:700; color:#e2e8f0; margin-bottom:16px; }
.footer-grid a{
  display:block; font-size:13px; color:#94a3b8; text-decoration:none;
  padding:5px 0; transition:color .2s;
}
.footer-grid a:hover{ color:#fff; }
.footer-grid .footer-desc{ font-size:13px; line-height:1.7; margin-bottom:16px; }
.footer-bottom{
  max-width:1280px; margin:0 auto;
  border-top:1px solid rgba(148,163,184,.12); padding-top:24px; margin-top:32px;
  text-align:center; font-size:12px; color:#64748b;
}
.footer-bottom a{ color:#F8A4C8; text-decoration:none; }
.footer-icp{ margin-top:4px; font-size:12px; color:rgba(255,255,255,0.5); }
.footer-icp a{ color:rgba(255,255,255,0.6); text-decoration:none; }
.footer-icp a:hover{ color:#F8A4C8; text-decoration:underline; }

/* ===== 粒子动画区域 ===== */
.footer-particle-section{
  width:100%; height:180px;
  background:linear-gradient(180deg,#0F172A 0%,#020617 100%);
  overflow:hidden; position:relative;
}
.footer-particle-section canvas{
  display:block; width:100%; height:100%;
}

/* ===== 面包屑 ===== */
.breadcrumb{ padding:86px 0 8px; font-size:13px; color:var(--text-muted); }
.breadcrumb a{ color:var(--text-sec); text-decoration:none; }
.breadcrumb a:hover{ color:var(--primary); }
.breadcrumb span{ margin:0 6px; }

/* ===== 子页 Hero ===== */
.page-hero{
  padding:64px 0 56px; background:#fff; border-bottom:1px solid var(--border); text-align:center;
}
.page-hero h1{ font-size:36px; font-weight:700; color:var(--text); margin-bottom:12px; }
.page-hero .highlight{ color:var(--primary); }
.page-hero .hero-desc{ font-size:16px; color:var(--text-sec); max-width:520px; margin:0 auto; }

/* ===== 移动端导航 ===== */
.mobile-nav{
  display:none; position:fixed; top:68px; left:0; right:0; bottom:0; z-index:99;
  background:rgba(255,255,255,.97); backdrop-filter:blur(20px);
  padding:32px 24px; flex-direction:column; gap:6px;
}
.mobile-nav.show{ display:flex; }
.mobile-nav a{
  display:block; padding:14px 20px; border-radius:12px; font-size:16px; font-weight:600;
  color:var(--text-sec); text-decoration:none; transition:all .15s;
}
.mobile-nav a:hover{ background:var(--primary-light); color:var(--primary); }
.mobile-nav .mobile-actions{
  display:grid; grid-template-columns:1fr 1fr; gap:12px; margin-top:20px;
  padding-top:20px; border-top:1px solid var(--border);
}

.hamburger-btn{
  display:none; width:42px; height:42px; border-radius:14px;
  background:linear-gradient(180deg,#fff,#fff5f7);
  border:none; cursor:pointer; flex-direction:column;
  align-items:center; justify-content:center; gap:5px; padding:10px;
  box-shadow:0 8px 22px rgba(255,107,138,.12), inset 0 0 0 1px rgba(255,107,138,.1);
  transition:all .25s;
}
.hamburger-btn span{
  display:block; width:20px; height:1.5px; background:var(--primary);
  border-radius:2px; transition:all .25s;
}
.hamburger-btn.active span:nth-child(1){ transform:rotate(45deg) translate(5px,5px); }
.hamburger-btn.active span:nth-child(2){ opacity:0; }
.hamburger-btn.active span:nth-child(3){ transform:rotate(-45deg) translate(4px,-4px); }

/* ===== SVG 图标 ===== */
.v-icon{ width:1em; height:1em; display:inline-block; vertical-align:-.125em; }

/* ===== 弹窗 ===== */
.modal-overlay{ position:fixed; top:0; left:0; width:100%; height:100%; background:rgba(0,0,0,0.55); backdrop-filter:blur(4px); z-index:9999; display:none; align-items:center; justify-content:center; animation:fadeIn 0.25s ease; }
.modal-overlay.show{ display:flex; }
.modal-box{ background:#fff; border-radius:16px; padding:36px 32px 28px; width:400px; max-width:92vw; text-align:center; box-shadow:0 20px 60px rgba(0,0,0,0.25); animation:modalSlide 0.3s ease; position:relative; }
.modal-close{ position:absolute; top:14px; right:16px; background:none; border:none; font-size:24px; color:#999; cursor:pointer; line-height:1; padding:4px; }
.modal-close:hover{ color:#333; }
.modal-icon{ font-size:44px; margin-bottom:12px; }
.modal-box h3{ font-size:20px; margin:0 0 4px; color:var(--text-primary); }
.modal-options{ display:flex; flex-direction:column; gap:12px; margin-bottom:16px; }
.modal-option{ display:flex; align-items:center; gap:14px; padding:14px 18px; border-radius:12px; background:var(--bg-soft); border:1px solid var(--border); text-decoration:none; transition:all 0.2s; text-align:left; }
.modal-option:hover{ border-color:var(--primary); background:#FFF0F5; transform:translateY(-1px); box-shadow:0 4px 12px rgba(255,107,138,0.15); }
.modal-option-icon{ font-size:28px; flex-shrink:0; width:40px; height:40px; display:flex; align-items:center; justify-content:center; border-radius:10px; background:var(--primary-light); overflow:hidden; }
.modal-option-icon img{ width:28px; height:28px; object-fit:contain; border-radius:4px; }
.modal-option-text{ flex:1; }
.modal-option-text strong{ display:block; font-size:15px; color:var(--text-primary); margin-bottom:2px; }
.modal-option-text span{ font-size:12px; color:var(--text-secondary); }
.modal-option-arrow{ font-size:18px; color:var(--primary); flex-shrink:0; }
.modal-cancel{ background:none; border:none; color:var(--text-secondary); font-size:13px; cursor:pointer; padding:8px 16px; transition:color 0.2s; }
.modal-cancel:hover{ color:var(--text-primary); }
.tutorial-box{ max-width:520px; text-align:left; }
.tutorial-box h3{ text-align:center; margin-bottom:16px; }
.tutorial-notice{ background:#FFF0F5; border-left:4px solid #FF6B8A; padding:14px 16px; border-radius:8px; margin-bottom:16px; font-size:14px; line-height:1.7; color:#4a4a4a; }
.tutorial-notice strong{ color:#DB2777; }
.tutorial-notice .blockquote{ display:block; margin-top:8px; padding:10px 14px; background:#fff; border-radius:6px; border-left:3px solid #FF6B8A; font-size:13px; color:#666; }
.tutorial-videos{ display:flex; flex-direction:column; gap:10px; margin-top:16px; }
.tutorial-video-link{ display:flex; align-items:center; gap:12px; padding:12px 16px; border-radius:10px; background:var(--bg-soft); border:1px solid var(--border); text-decoration:none; transition:all 0.2s; }
.tutorial-video-link:hover{ border-color:var(--primary); background:#FFF0F5; transform:translateY(-1px); box-shadow:0 4px 12px rgba(255,107,138,0.15); }
.tutorial-video-link .tv-icon{ width:36px; height:36px; border-radius:8px; display:flex; align-items:center; justify-content:center; font-size:18px; flex-shrink:0; }
.tutorial-video-link .tv-icon img{ width:24px; height:24px; object-fit:contain; }
.tutorial-video-link .tv-icon.kuaishou{ background:#FFEED9; }
.tutorial-video-link .tv-icon.bilibili{ background:#E8F0FE; }
.tutorial-video-link .tv-text{ flex:1; }
.tutorial-video-link .tv-text strong{ display:block; font-size:14px; color:var(--text-primary); }
.tutorial-video-link .tv-text span{ font-size:12px; color:var(--text-secondary); }
.tutorial-video-link .tv-arrow{ font-size:16px; color:var(--primary); flex-shrink:0; }
@keyframes fadeIn{ from{opacity:0} to{opacity:1} }
@keyframes modalSlide{ from{opacity:0;transform:scale(0.92) translateY(20px)} to{opacity:1;transform:scale(1) translateY(0)} }
@media(max-width:640px){
  .modal-box{ padding:28px 20px 24px; }
  .modal-option{ padding:12px 14px; }
}

/* ===== 图片预览 ===== */
.img-preview-overlay{ position:fixed; top:0; left:0; width:100%; height:100%; background:rgba(0,0,0,0.85); backdrop-filter:blur(8px); z-index:99999; display:none; align-items:center; justify-content:center; animation:fadeIn 0.3s ease; }
.img-preview-overlay.show{ display:flex; }
.img-preview-wrap{ position:relative; max-width:90vw; max-height:90vh; display:flex; align-items:center; justify-content:center; }
.img-preview-wrap img{ max-width:90vw; max-height:90vh; object-fit:contain; border-radius:12px; box-shadow:0 8px 40px rgba(0,0,0,0.5); animation:modalSlide 0.3s ease; }
.img-preview-close{ position:fixed; top:20px; right:24px; background:rgba(255,255,255,0.15); border:none; font-size:32px; color:#fff; cursor:pointer; width:48px; height:48px; border-radius:50%; display:flex; align-items:center; justify-content:center; transition:all 0.2s; }
.img-preview-close:hover{ background:rgba(255,255,255,0.3); color:#fff; transform:scale(1.1); }

/* ===== 响应式 ===== */
@media (max-width:960px){
  .container{ padding:0 20px; }
  header{ height:60px; }
  .nav-links, .header-actions{ display:none; }
  .hamburger-btn{ display:flex; }
  .mobile-nav{ top:60px; }
  .section-header h2{ font-size:25px; }
  .page-hero h1{ font-size:30px; }
  .footer-grid{ grid-template-columns:1fr 1fr; gap:32px; }
}
@media (max-width:640px){
  .container{ padding:0 16px; }
  .footer-grid{ grid-template-columns:1fr; }
  .section-header h2{ font-size:22px; }
  .page-hero h1{ font-size:24px; }
  .btn-primary-lg, .btn-secondary-lg{ padding:13px 28px; font-size:15px; }
}