/* ===========================================
    快乐公司 · FULL styles.css (v4, card images)
    - Global radius & transparency controls
    - Poppins font (modern industrial look)
    - Video hero + OpenArt-style chips/buttons
    - Cards now use LARGE BANNER IMAGES (not tiny icons)
    =========================================== */

/* ===== Google Font ===== */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700;800&display=swap');

/* ===== Root Tokens (edit these 2 first) ===== */
:root{
  --global-radius: 12px;        /* ◀︎ Roundness for ALL buttons/chips/eyebrow */
  --global-transparency: 0.80;  /* ◀︎ Fill opacity for gradient UI (0.5 glassy ~ 1 solid) */

  /* Theme */
  --bg: #060a12;
  --text: #eaf4ff;
  --muted: #9fb3c9;

  /* Gradient (from your sample) */
  --grad-top: #F2E6EE;
  --grad-bottom: #977DFF;
  
  /* === GEMINI MODIFICATION: Changed to Muted Blue-Violet Theme === */
  --accent-primary: #8A73FF;
  --accent-hover: #7059FF; /* A darker shade for hover */
  --accent-glow: rgba(138, 115, 255, 0.3);
  /* === END MODIFICATION === */

  /* Surfaces & effects */
  --border: rgba(255,255,255,.12);
  --radius: 16px;
  --shadow: 0 12px 40px rgba(0,0,0,.45);
  --shadow-purple: 0 8px 28px rgba(151,125,255,.30);

  /* ===== START: Added Chatbot Glass Variables ===== */
  /* These are needed for the chatbot's "glass" effect */
  --glass-bg: linear-gradient(180deg, rgba(15,36,54,.88), rgba(15,36,54,.78));
  --glass-border: rgba(255,255,255,.18);
  --glass-inset: rgba(255,255,255,.06);
  --glass-shadow: 0 18px 30px rgba(0,0,0,.35);
  /* ===== END: Added Chatbot Glass Variables ===== */
}

/* ===== Base ===== */
*{box-sizing:border-box; margin:0; padding:0}
html,body{height:100%}
body{
  font-family:'Poppins', system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color:var(--text); background:var(--bg); line-height:1.6;
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%; display:block}
.container{width:min(1120px,92%); margin:0 auto}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky; top:0; z-index:20;
  background:linear-gradient(to bottom, rgba(6,10,18,.9), rgba(6,10,18,.55), transparent);
  backdrop-filter: blur(8px);
}
.nav{display:flex; align-items:center; justify-content:space-between; padding:14px 0}
.brand{display:flex; align-items:center; gap:10px; text-decoration:none; color:var(--text)}
.brand__logo{width:34px; height:34px; object-fit:contain}
.brand__name{font-weight:800; font-size:1.1rem}
.menu{display:flex; gap:22px}
.menu a{color:var(--muted); text-decoration:none; font-weight:600; transition:.2s}
.menu a:hover{color:var(--text)}
.nav-cta{display:flex; gap:10px}

/* ===== Buttons (use global vars) ===== */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:11px 18px; font-weight:700; letter-spacing:.2px; text-decoration:none;
  border:1px solid rgba(255,255,255,.10); border-radius:var(--global-radius);
  transition:all .25s ease; backdrop-filter: blur(6px);
  cursor: pointer; /* Added for consistency */
}
/* Added: Disabled state for buttons */
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}


/* === GEMINI MODIFICATION: Re-styled Primary Button to Muted Blue-Violet === */
.btn--primary{
  color: #ffffff;
  background: var(--accent-primary);
  border: 1px solid var(--accent-primary);
  box-shadow: 0 4px 20px var(--accent-glow);
}
.btn--primary:hover:not(:disabled){
  color: #ffffff;
  background: var(--accent-hover);
  border: 1px solid var(--accent-hover);
  box-shadow: 0 6px 25px rgba(138, 115, 255, 0.4);
  transform: translateY(-1px);
}

/* === GEMINI MODIFICATION: Re-styled Ghost Button to Outline Muted Blue-Violet === */
.btn--ghost{
  color: var(--accent-primary);
  border: 1px solid var(--accent-primary);
  background: rgba(138, 115, 255, 0.1); /* Light blue-violet tint */
}
.btn--ghost:hover:not(:disabled){
  color: var(--accent-hover);
  background: rgba(138, 115, 255, 0.2);
  border-color: var(--accent-hover);
  box-shadow: 0 0 20px rgba(138, 115, 255, 0.2);
}
.btn--lg{padding:14px 24px; font-size:1.05rem}

/* ===== Video Background ===== */
.bg{position:fixed; inset:0; z-index:-2}
.bg__video{position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
  filter:saturate(1.15) contrast(1.05) brightness(.85)}
.bg__overlay{position:absolute; inset:0; pointer-events:none;
  background:
    radial-gradient(1000px 600px at 50% 10%, rgba(151,125,255,.18), transparent 55%),
    radial-gradient(900px 500px at 70% 70%, rgba(242,230,238,.18), transparent 60%),
    linear-gradient(180deg, rgba(6,10,18,.35), rgba(6,10,18,.75) 30%, rgba(6,10,18,.9))}
@media (prefers-reduced-motion:reduce){.bg__video{display:none}}

/* ===== Hero ===== */
.hero{
  padding: 120px 0 80px; 
  min-height: 72vh; 
  display: flex; 
  align-items: center;
}

.hero__inner{
  text-align: left;
}

.hero__subtitle {
  font-size: 1.15rem;
  color: var(--muted);
  margin: 20px 0 30px;
  max-width: 550px;
  line-height: 1.7;
}

.hero__title{
  margin: 0; 
  font-weight:800; letter-spacing:-.5px; line-height:1.06;
  font-size:min(66px,10vw); text-shadow:0 10px 50px rgba(0,0,0,.35)
}
.hero__cta{
  display:flex; 
  gap:12px; 
  justify-content: flex-start; 
  margin-top:12px
}


/* ===== Sections ===== */
.section{padding:80px 0}
.section__title{font-size:34px; margin:0 0 12px}
.section__lead{color:var(--muted); margin:0 0 26px}

/* ===== Solutions (cards x5) ===== */
.cards{display:grid; gap:16px; grid-template-columns:repeat(5,1fr)}
.card{
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:rgba(255,255,255,.05);
  box-shadow:var(--shadow);
  overflow:hidden; 
  display:flex; flex-direction:column;
}

.card__icon,
.card > img{
  width:100%;
  height:200px; 
  object-fit:cover;
  border-radius:0; 
  margin:0; 
  display:block;
}

.card > *:not(img):not(.card__icon){padding:16px 18px}
.card h3{margin:0 0 6px}
.card p{color:var(--muted); margin:0 0 8px}
.card__bullets{margin:4px 0 14px 20px; padding:0}
.card__bullets li{margin:6px 0}
.card__link{margin-top:auto; color:var(--grad-bottom); text-decoration:none; padding:0 18px 18px}

/* ===== Use Cases ===== */
.usecases{display:grid; grid-template-columns:1fr; gap:18px}
.usecase{
  display:grid; grid-template-columns:160px 1fr; gap:16px;
  padding:14px; border-radius:var(--radius);
  border:1px solid var(--border); background:rgba(255,255,255,.03)
}
.usecase img{width:160px; height:110px; object-fit:cover; border-radius:12px}

/* ===== Cases / Resources (MODIFIED) ===== */
.casegrid{display:grid; grid-template-columns:repeat(3,1fr); gap:18px}
.case{
  border:1px solid var(--border); border-radius:var(--radius);
  background:rgba(255,255,255,.03); padding:14px;
  transition: all .2s ease;
}
.case img{height:160px; width:100%; object-fit:cover; border-radius:12px; margin-bottom:10px}

.resources{display:grid; grid-template-columns:repeat(3,1fr); gap:18px}
.res{
  padding:14px; border:1px solid var(--border); border-radius:var(--radius);
  background:rgba(255,255,255,.03);
    transition: all .2s ease; /* Added for consistency on all resource cards */
  cursor: pointer; /* Added for consistency on all resource cards */
}
.res img{height:120px; width:100%; object-fit:cover; border-radius:12px; margin-bottom:10px}
.link{color:var(--grad-bottom); text-decoration:none}

/* ===== CTA Band ===== */
.section--cta{padding:64px 0}
.cta{
  display:flex; align-items:center; justify-content:space-between; gap:24px;
  border:1px solid var(--border); border-radius:20px; padding:24px 28px;
  background:linear-gradient(180deg, rgba(151,125,255,.25), rgba(242,230,238,.12) 70%)
}
.cta__copy p{color:var(--muted); margin:.3rem 0 0}

/* ===== Contact ===== */
.contact{display:grid; gap:16px}
.contact .grid{display:grid; grid-template-columns:repeat(2,1fr); gap:16px}
.contact label{display:flex; flex-direction:column; gap:6px}
input,select,textarea{
  background:rgba(255,255,255,.03); border:1px solid var(--border); color:var(--text);
  border-radius:12px; padding:12px; outline:none;
  font-family: inherit; /* Ensure custom inputs inherit font */
  font-size: 14px; /* Standardize font size */
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 10px var(--accent-glow);
}
textarea{min-height:120px; resize:vertical}

/* ===== START: FIX for Dropdown Option Readability ===== */
/* This rule ensures that the <option> elements inside a dropdown 
   have dark text, making them readable against the browser's 
   default light-colored dropdown list background. */
select option {
  color: #1a202c; /* A dark text color */
  background: #FFFFFF; /* A standard white background */
}
/* ===== END: FIX for Dropdown Option Readability ===== */


/* ===== Footer ===== */
.footer{padding:40px 0; border-top:1px solid var(--border); background:rgba(0,0,0,.4)}
.footer__grid{display:flex; align-items:center; justify-content:space-between}
.footer__brand{display:flex; align-items:center; gap:14px}
.footer__brand img{width:28px; height:28px}
.footer__links{display:flex; gap:18px}
.footer__links a{color:var(--muted); text-decoration:none}
.footer__links a:hover{color:var(--text)}

/* ===== Trust row ===== */
.trust{
  display:flex; 
  align-items:center; 
  gap:16px; 
  margin-top: 40px; 
  justify-content: flex-start;
}
.trust img{height:50px; opacity:.9}

/* ===== Scroll Indicator (optional) ===== */
.scroll-indicator{
  --size:26px; position:absolute; left:50%; transform:translateX(-50%);
  bottom:28px; width:var(--size); height:var(--size);
  border-radius:999px; border:1px solid rgba(255,255,255,.18);
  box-shadow:0 0 20px rgba(151,125,255,.25);
  background:
    radial-gradient(closest-side, rgba(255,255,255,.85), rgba(255,255,255,0) 70%),
    linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.02))
}
.scroll-indicator::after{
  content:""; position:absolute; inset:0; margin:auto; width:6px; height:6px;
  border-radius:50%; background:var(--grad-bottom); animation:drop 1.6s infinite
}
@keyframes drop{0%{transform:translateY(4px);opacity:1}70%{transform:translateY(12px);opacity:.1}100%{transform:translateY(4px);opacity:1}}

/* ===== Responsive ===== */
@media (max-width:1200px){
  .cards{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1024px){
  .hero__title{font-size:min(52px,12vw)}
  .casegrid,.resources{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .menu{display:none}
  .cards{grid-template-columns:1fr}
  .casegrid,.resources{grid-template-columns:1fr}
  .usecase{grid-template-columns:1fr}
  .contact .grid{grid-template-columns:1fr}
}


/* ======================================================== */
/* ===== START: ROBOT CHAT BOT STYLES (Integrated) ===== */
/* ======================================================== */

.hidden{ display:none !important }

.chat-fab{ 
  position:fixed; 
  right:22px; 
  bottom:22px; 
  width:64px; 
  height:64px; 
  border-radius:50%; 
  padding:0; 
  border:none; 
  outline:none; 
  background:transparent; 
  overflow:hidden; 
  cursor:pointer; 
  z-index:40; 
}
.chat-fab:focus-visible{ outline:3px solid rgba(255,255,255,.35) }
.chat-fab video{ 
  position:absolute; 
  inset:0; 
  width:100%; 
  height:100%; 
  object-fit:contain; 
  pointer-events:none; 
  display:block; 
  background:transparent; 
}

.chat-panel{
  position:fixed; 
  right:22px; 
  bottom:90px;
  width:min(520px, 92vw); 
  height:min(560px, 80vh);
  display:flex; 
  flex-direction:column; 
  overflow:hidden; 
  z-index:50;
  border-radius:18px;
  background: var(--glass-bg);
  border:1px solid var(--glass-border);
  box-shadow: var(--glass-shadow), 0 0 0 1px var(--glass-inset) inset;
  backdrop-filter: blur(10px) saturate(120%);
  -webkit-backdrop-filter: blur(10px) saturate(120%);
  color: var(--text); 
}

.chat-head{
  display:flex; 
  align-items:center; 
  justify-content:space-between;
  padding:12px 14px;
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.02));
  border-bottom:1px solid var(--glass-border);
}
.chat-title{ font-weight:900; letter-spacing:.2px; color:var(--text) }
.chat-actions{ display:flex; gap:8px; align-items:center }

.chat-panel .chip{ 
  font-size:12px; 
  padding:6px 10px; 
  border-radius:999px; 
  background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03)); 
  border:1px solid rgba(255,255,255,.12); 
  color:var(--text);
  box-shadow: none; 
  font-weight: normal; 
}
.chat-panel .chip:hover{
  transform: none;
  background:linear-gradient(180deg, rgba(255,255,255,.12), rgba(255,255,255,.05));
  box-shadow: none;
}

#chatClose.btn{
  background:transparent;
  color:var(--text);
  border:1px solid rgba(255,255,255,.22);
  padding:6px 10px; 
  border-radius:10px;
  font-weight:800;
  letter-spacing: normal;
  display:inline-flex;
  line-height:1;
  box-shadow:none;
  backdrop-filter:none;
}
#chatClose.btn:hover{
  background:rgba(255,255,255,.1);
  color:var(--text);
  box-shadow:none;
  transform:none;
}

.chat-body{ flex:1; display:grid; grid-template-columns: 1fr 240px; min-height:0 }
@media (max-width:820px){ .chat-body{ grid-template-columns:1fr } .sidebar.chat-side { display: none; } }

.thread.chat-thread{
  padding:14px; 
  overflow:auto; 
  display:flex; 
  flex-direction:column; 
  gap:12px;
  background: linear-gradient(180deg, rgba(0,0,0,.25), rgba(0,0,0,.45));
  border-right:1px solid var(--glass-border);
}
.msg{ 
  max-width:85%; 
  padding:10px 12px; 
  border-radius:14px; 
  background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03)); 
  border:1px solid rgba(255,255,255,.12); 
  color:var(--text);
  line-height: 1.5; 
}
.me{ 
  align-self:flex-end; 
  background:linear-gradient(180deg, rgba(255,213,119,.22), rgba(0,0,0,.55)); 
  border-color:rgba(255,213,119,.45); 
}

.sidebar.chat-side{
  display:flex; 
  flex-direction:column; 
  gap:10px; 
  padding:14px;
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border-left:1px solid var(--glass-border); 
  color:var(--text);
}
.side-item.chat-side-item{ 
  padding:10px 12px; 
  border-radius:10px; 
  background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03)); 
  font-size:12px; 
  color:var(--text); 
  border:1px solid rgba(255,255,255,.12); 
  cursor: pointer;
}
.side-item.chat-side-item:hover {
  background:linear-gradient(180deg, rgba(255,255,255,.1), rgba(255,255,255,.05)); 
}
.side-title{ 
  font-size:12px; 
  color:var(--muted); 
  font-weight:800; 
  margin-bottom:6px; 
}

.chat-input{
  display:flex; 
  gap:10px; 
  padding:12px;
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border-top:1px solid var(--glass-border);
}
.chat-input textarea{ 
  resize:none; 
  height:44px; 
  flex:1; 
  border-radius:12px; 
  border:1px solid rgba(255,255,255,.22); 
  background:rgba(0,0,0,.25); 
  color:var(--text); 
  padding:10px 12px; 
  outline:none;
  font-family: inherit; 
  font-size: 14px;
}
.chat-input textarea:focus {
  border-color: rgba(255,255,255,.5);
  box-shadow: 0 0 10px var(--accent-glow); 
}
.send-btn{ 
  height:44px; 
  padding:0 16px; 
  border-radius:12px; 
  border:1px solid rgba(255,213,119,.45); 
  background:linear-gradient(180deg, rgba(255,213,119,.28), rgba(0,0,0,.45)); 
  color:var(--text); 
  font-weight:800; 
  cursor:pointer; 
  font-family: inherit; 
}
.send-btn:hover{ 
  box-shadow:0 0 0 1px rgba(255,213,119,.35) inset; 
  background:linear-gradient(180deg, rgba(255,213,119,.35), rgba(0,0,0,.55)); 
}

/* ======================================================== */
/* ===== END: ROBOT CHAT BOT STYLES (Integrated) ===== */
/* ======================================================== */



/* ======================================================== */
/* ===== START: Added by Gemini (Card Link) ===== */
/* ======================================================== */

.case-link {
  text-decoration: none;
  color: inherit;
  display: block;
  border-radius: var(--radius);
  transition: all .2s ease;
  outline: none;
}
.case-link:hover .case {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
  border-color: rgba(255,255,255,.25);
}
.case-link:focus-visible {
  outline: 2px solid var(--grad-bottom);
  outline-offset: 2px;
}
.case-link:focus-visible .case {
  border-color: rgba(255,255,255,.25);
}


/* ======================================================== */
/* ===== START: Added by Gemini (Video Player Page) ===== */
/* ======================================================== */

.video-header {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  background: rgba(6,10,18,.5); 
  margin-bottom: 30px;
}

.video-page-wrapper {
  display: grid;
  grid-template-columns: 1fr; 
  gap: 24px;
  padding-bottom: 60px; 
  width: min(1400px, 92%);
}

.video-player-container {
  width: 100%;
  background: #000;
  border-radius: var(--global-radius); 
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 10px 40px rgba(0,0,0,.3);
}
.video-player-container video {
  width: 100%;
  display: block;
}

.video-info { margin-top: 20px; }
.video-info h1 { font-size: 28px; font-weight: 700; color: var(--text); line-height: 1.3; }
.video-stats { color: var(--muted); font-size: 0.9rem; margin-top: 8px; }
.video-stats span + span { margin-left: 12px; }

.video-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.video-tags .tag {
  background: rgba(255,255,255,.1);
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: var(--global-radius);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

.video-description {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  line-height: 1.7;
}

.video-sidebar {
  background: rgba(255,255,255,.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  height: fit-content; 
}
.video-sidebar h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 16px; color: var(--text); }

.video-playlist { display: flex; flex-direction: column; gap: 12px; }

.chapter-item {
  display: flex;
  gap: 12px;
  cursor: pointer; 
  background: rgba(0,0,0,.2);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid transparent;
  transition: all .2s ease;
}
.chapter-item:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--border);
}
.chapter-item img { width: 120px; height: 70px; object-fit: cover; flex-shrink: 0; }
.chapter-item-info { padding: 8px 10px 8px 0; color: var(--text); }
.chapter-item-info h4 { font-size: 0.9rem; font-weight: 600; margin: 0 0 4px; }
.chapter-item-info span { font-size: 0.8rem; color: var(--muted); }

@media (min-width: 900px) {
  .video-page-wrapper {
    grid-template-columns: 3fr 1fr; 
  }
}

/* --- START: 从 Index_2.html 移入的新增样式 --- */
.card {
  position: relative;
  transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow, 0 12px 40px rgba(0,0,0,.45));
}
.card .card-click-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2; 
}
.card > *:not(.card-click-overlay) {
  position: relative;
  z-index: 1;
}
.card .card__link {
  color: var(--brand, #8A73FF); 
  font-weight: 600;
}

/* --- START: 新增的合作伙伴区域样式 --- */
#partners {
  padding-top: 40px; 
  padding-bottom: 40px; 
}
#partners .section__title {
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}
#partners .section__lead {
  letter-spacing: 0.2em; 
  font-size: 1.1rem; 
  margin-top: -10px; 
  margin-bottom: 40px; 
  color: var(--muted, #9fb3c9); 
}
.partner-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-radius: var(--radius, 16px); 
  overflow: hidden; 
  border: 1px solid var(--border, rgba(255,255,255,.12));
  box-shadow: var(--shadow, 0 12px 40px rgba(0,0,0,.45));
}
.partner-card {
  padding: 40px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05); 
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-right: 1px solid var(--border, rgba(255,255,255,.12));
  border-bottom: 1px solid var(--border, rgba(255,255,255,.12));
}
.partner-grid .partner-card:nth-child(3n) { border-right: none; }
.partner-grid .partner-card:nth-child(n+4) { border-bottom: none; }
.partner-card img {
  max-width: 100%;
  height: 60px; 
  object-fit: contain;
  transition: filter 0.3s ease, opacity 0.3s ease;
}
.partner-card:hover img { opacity: 1; }

@media (max-width: 768px) {
  .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .partner-grid .partner-card:nth-child(3n) { border-right: 1px solid var(--border, rgba(255,255,255,.12)); }
  .partner-grid .partner-card:nth-child(2n) { border-right: none; }
  .partner-grid .partner-card:nth-child(n+4) { border-bottom: 1px solid var(--border, rgba(255,255,255,.12)); }
  .partner-grid .partner-card:nth-child(n+5) { border-bottom: none; }
}

@media (max-width: 480px) {
  .partner-grid { grid-template-columns: 1fr; }
  .partner-grid .partner-card { border-right: none; border-bottom: 1px solid var(--border, rgba(255,255,255,.12)); }
  .partner-grid .partner-card:last-child { border-bottom: none; }
}
/* --- END: W(q)= ( (q-1) * (I(q)-I(q-1)) + I(1) ) / q
 合作伙伴样式 --- */


/* ======================================================== */
/* ===== START: NEW PDF Download Modal Styles (BASE THEME) ===== */
/* ======================================================== */

.modal-hidden {
  display: none;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-panel {
  position: relative;
  width: min(480px, 90vw);
  /* Re-use the chat panel's glass effect for consistency */
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow), 0 0 0 1px var(--glass-inset) inset;
  border-radius: var(--radius);
  padding: 28px 24px 24px;
  z-index: 101;
  color: var(--text);
}

.modal-panel h3 {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 8px;
}

.modal-lead {
  color: var(--muted);
  margin: 0 0 20px;
  font-size: 15px;
}

.modal-close-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 20px;
  font-weight: 700;
  padding: 8px;
  line-height: 1;
  cursor: pointer;
  border-radius: 50%;
  transition: all .2s ease;
}
.modal-close-btn:hover {
  color: var(--text);
  background: rgba(255,255,255,0.1);
}

.modal-overlay.modal-hidden {
  display: none;
}

#pdf-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Use same styles as contact form */
#pdf-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
}

/* Use same styles as contact form inputs */
#pdf-form input,
#pdf-form select {
  background: rgba(0,0,0,.25); /* Darker than main contact form for better contrast in modal */
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 12px;
  padding: 12px;
  outline: none;
  font-family: inherit;
  font-size: 15px;
}

#pdf-form input:focus,
#pdf-form select:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 10px var(--accent-glow);
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 8px;
}
.form-actions .btn {
  width: 100%; /* Make button full width */
}

.form-status-msg {
  font-size: 14px;
  text-align: center;
  margin-top: 10px;
  color: var(--muted);
}
.form-status-msg.error {
  color: #ffaaaa; /* A light red for errors */
}
/* ======================================================== */
/* ===== END: NEW PDF Download Modal Styles (BASE THEME) ===== */
/* ======================================================== */

/* ======================================================== */
/* ===== NEW QR Code Modal Styles (Customized from PDF Modal) ===== */
/* ======================================================== */

/* General modal panel styles are inherited, only adjust size and content */
.qr-popup-panel {
    width: min(350px, 90vw);
    text-align: center;
}

/* Style for the QR code image */
.qr-code-image {
    width: 250px; 
    max-width: 100%;
    height: auto;
    background-color: #FFFFFF; /* Ensures the QR code is readable against a white background */
    padding: 10px; 
    border-radius: var(--global-radius);
    margin: 15px auto 5px; 
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
    display: block;
}

/* --- Style for the WeChat/公众号 card image placeholder --- */
/* This will help hide any "博客封面" text if it was part of a placeholder image,
   and give the card a distinct background */
#wechat-card .wechat-image-placeholder {
    background-color: #00A859; /* WeChat green */
    object-fit: cover; /* Change from 'contain' to fill the area */
    padding: 0; /* Remove padding if using object-fit: cover */
    /* If the image "assets/blog-thumb.jpg" fails to load, this background color will show */
}
/* ======================================================== */
/* ===== END: NEW QR Code Modal Styles ===== */
/* ======================================================== */


/* ======================================================== */
/* ===== START: FIX for Dropdown Visibility (NEW) ===== */
/* ======================================================== */

.dropdown-menu {
  /* This is the key fix. It forces the menu to be hidden,
     overridden ONLY by the specific :hover rule in products.css */
  display: none !important; 
  /* Also reset pointer events for safety */
  pointer-events: none;
}

/* ======================================================== */
/* ===== END: FIX for Dropdown Visibility (NEW) ===== */
/* ======================================================== */