/* pages.css — Shared page layout components (mobile-first)
   目标：全站页面更“松弛”、更好读；按钮/卡片/FAQ 更统一。
   注意：本文件会被多页面引用，建议只写“通用模块”，不要写某个页面专属的特殊样式。
*/

:root{
  /* 这些变量尽量从 site.css 继承（方便全站统一换挡） */
  --p-ink: var(--text);
  --p-muted: rgba(15,23,42,.72);
  --p-line: var(--border);
  --p-card: var(--card);
  --p-radius: var(--radius-lg);
  --p-shadow: var(--shadow-md);

  /* 轻背景/强调色（提供 fallback：先写 rgba，再写 color-mix） */
  --p-soft-bg: rgba(224,242,255,.65);
  --p-accent-bg: rgba(31,111,235,.10);
  --p-accent-line: rgba(31,111,235,.18);
}

/* 如果浏览器支持 color-mix，会自动用更“跟随主题色”的版本 */
@supports (color: color-mix(in srgb, #000 50%, #fff)){
  :root{
    --p-soft-bg: color-mix(in srgb, var(--brand) 65%, transparent);
    --p-accent-bg: color-mix(in srgb, var(--accent) 12%, transparent);
    --p-accent-line: color-mix(in srgb, var(--accent) 18%, transparent);
  }
}

/* 页面整体留白（解决“太紧凑”） */
.page-wrap{
  padding: var(--space-page-y) 0 var(--space-page-bottom);
}

/* 统一隐藏 breadcrumbs（即使 HTML 里残留也不会显示） */
.breadcrumbs{ display:none !important; }

/* 内容窄版（阅读更舒服） */
.page-narrow{
  max-width: var(--content-max);
  margin: 0 auto;
}

/* ---------- Small UI bits ---------- */
.kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size: 12px;
  letter-spacing:.18em;
  text-transform: uppercase;
  color: rgba(15,23,42,.55);
  margin: 0 0 10px;
}

/* ---------- Hero ---------- */
.hero{
  background:
    radial-gradient(1200px 520px at 20% 0%,
      rgba(255,255,255,.92),
      rgba(255,255,255,.55) 55%,
      rgba(255,255,255,.10) 100%),
    linear-gradient(180deg, var(--brand), rgba(255,255,255,.65));
  border: 1px solid rgba(15,23,42,.10);
  border-radius: var(--p-radius);
  box-shadow: var(--p-shadow);
  padding: var(--space-hero);
}

.hero-grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-items:center;
}

/* 关键修复：避免右侧媒体（尤其是高分辨率图片）在 CSS Grid 下触发 min-content 宽度，
   导致整体网格溢出 hero 容器（表现为右侧图片“跑出板块”）。 */
.hero-grid > *{ min-width: 0; }

.hero h1{
  font-size: clamp(26px, 4.2vw, 40px);
  line-height: 1.15;
  margin: 6px 0 10px;
  color: var(--p-ink);
}

.hero p.lead{
  margin: 0;
  color: var(--p-muted);
  font-size: 15px;
  line-height: 1.65;
}

.hero .hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  margin-top: 14px;
}

/* 关键修复：按钮样式只作用于“正文页面区域”，避免覆盖悬浮表单按钮(.btn 在 site.css 里) */
.page-wrap .btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  border-radius: 999px;
  padding: 10px 14px;
  font-weight: 700;
  text-decoration:none;
  border: 1px solid rgba(15,23,42,.18);
  background: #fff;
  color: var(--p-ink);
  transition: transform var(--motion-fast) var(--ease-out), background var(--motion-fast) var(--ease-out), border-color var(--motion-fast) var(--ease-out);
}
.page-wrap .btn:hover{ transform: translateY(-1px); }
.page-wrap .btn:active{ transform: translateY(0px); }

.page-wrap .btn.primary{
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.page-wrap .btn.ghost{
  background: rgba(255,255,255,.65);
}

.hero-figure{
  /* figure 元素在浏览器默认样式里有 margin（常见是左右 40px），
     会导致 hero 右侧媒体块“超出板块范围”。这里显式归零。 */
  margin: 0;
  width: 100%;
  min-width: 0;
  border-radius: var(--radius-md);
  overflow:hidden;
  border: 1px solid rgba(15,23,42,.10);
  background: #fff;
}

.hero-figure img{
  display:block;
  width:100%;
  height: 220px;
  object-fit: cover;
}

.page-nav{
  /* 全站移除顶部快捷锚点按钮，避免占位留白 */
  display:none !important;
  margin:0 !important;
}

.chip{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(15,23,42,.14);
  background: rgba(255,255,255,.70);
  color: rgba(15,23,42,.88);
  text-decoration:none;
  font-weight: 650;
  font-size: 13px;
  transition: background var(--motion-fast) var(--ease-out), transform var(--motion-fast) var(--ease-out);
}

.chip:hover{
  background: #fff;
  transform: translateY(-1px);
}

/* ---------- Sections ---------- */
.section{
  margin-top: var(--space-section);
}

.section h2{
  font-size: 20px;
  margin: 0 0 10px;
  color: var(--p-ink);
}

.section p{
  margin: 0 0 12px;
  color: var(--p-muted);
  line-height: 1.75;
}

/* ---------- Grid / Cards ---------- */
.grid{
  display:grid;
  gap: var(--space-grid);
}

.grid.cols-2{ grid-template-columns: 1fr; }
.grid.cols-3{ grid-template-columns: 1fr; }

.card{
  background: var(--p-card);
  border: 1px solid rgba(15,23,42,.10);
  border-radius: var(--p-radius);
  box-shadow: var(--shadow-sm);
  padding: var(--space-card);
}

.card h3{
  margin: 0 0 8px;
  font-size: 16px;
  color: var(--p-ink);
}

.card p{
  margin: 0;
  color: var(--p-muted);
}

.badge{
  display:inline-flex;
  align-items:center;
  border-radius: 999px;
  padding: 5px 10px;
  background: var(--p-accent-bg);
  color: var(--accent);
  border: 1px solid var(--p-accent-line);
  font-size: 12px;
  font-weight: 700;
}

.split{
  display:grid;
  grid-template-columns: 1fr;
  gap: var(--space-grid);
}

.media-card{
  display:grid;
  grid-template-columns: 1fr;
  gap: 12px;
  align-items: start;
}

.media-card img{
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid rgba(15,23,42,.10);
}

.media-card .meta{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom: 8px;
}

.ul{
  margin: 0;
  padding-left: 18px;
  color: var(--p-muted);
  line-height: 1.75;
}

.ul li{ margin: 6px 0; }

/* ---------- Steps ---------- */
.steps{
  counter-reset: step;
  margin: 0;
  padding: 0;
  list-style: none;
  display:grid;
  gap: 10px;
}

.steps li{
  counter-increment: step;
  background: #fff;
  border: 1px solid rgba(15,23,42,.10);
  border-radius: var(--radius-md);
  padding: 12px 12px 12px 46px;
  position: relative;
  box-shadow: var(--shadow-sm);
}

.steps li::before{
  content: counter(step);
  position:absolute;
  left: 12px;
  top: 12px;
  width: 26px;
  height: 26px;
  border-radius: 999px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight: 800;
  color: var(--p-ink);
  background: var(--p-soft-bg);
  border: 1px solid rgba(15,23,42,.10);
}

/* ---------- FAQ ---------- */
.faq{
  display:grid;
  gap: 10px;
}

.faq details{
  background:#fff;
  border:1px solid rgba(15,23,42,.10);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  box-shadow: var(--shadow-sm);
}

.faq summary{
  cursor:default;
  font-weight: 800;
  color: var(--p-ink);
  list-style:none;
  display:block;
}

.faq summary::-webkit-details-marker{ display:none; }
.faq summary::marker{
  content:"";
  font-size:0;
}

.faq details > div{
  margin-top: 10px;
  color: var(--p-muted);
  line-height: 1.75;
}

/* FAQ: 参考首页的“淡入出现”效果（由 site.js 给 section#faq 加 data-animate="1" 并给每条 details 加 is-visible） */
section#faq[data-animate="1"] details{
  opacity: 0;
  transform: translate3d(0, 10px, 0);
  transition:
    opacity .72s cubic-bezier(.22,.61,.36,1) var(--delay, 0ms),
    transform .72s cubic-bezier(.22,.61,.36,1) var(--delay, 0ms);
  will-change: opacity, transform;
  backface-visibility: hidden;
}
section#faq[data-animate="1"] details.is-visible{
  opacity: 1;
  transform: translate3d(0, 0, 0);
}
@media (prefers-reduced-motion: reduce){
  section#faq[data-animate="1"] details{
    transition: none;
    opacity: 1;
    transform: none;
  }
}

/* ---------- FAQ System (4 UI types, non-home) ---------- */
body[data-faq-ui="level1"]{
  --faq-wrap-border: rgba(37,99,235,.16);
  --faq-wrap-bg:
    radial-gradient(760px 300px at 100% 0%, rgba(167,243,208,.16), rgba(167,243,208,0) 64%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(239,250,255,.92));
  --faq-card-border: rgba(37,99,235,.14);
  --faq-card-bg: linear-gradient(180deg, rgba(255,255,255,.98), rgba(242,249,255,.92));
  --faq-card-shadow: 0 8px 20px rgba(30,64,175,.10);
  --faq-title-ink: rgba(15,23,42,.92);
  --faq-body-ink: rgba(15,23,42,.74);
}

body[data-faq-ui="level2"]{
  --faq-wrap-border: rgba(15,23,42,.10);
  --faq-wrap-bg: linear-gradient(180deg, rgba(255,255,255,.98), rgba(246,250,255,.96));
  --faq-card-border: rgba(15,23,42,.10);
  --faq-card-bg: #fff;
  --faq-card-shadow: 0 8px 20px rgba(2,6,23,.06);
  --faq-title-ink: rgba(15,23,42,.92);
  --faq-body-ink: rgba(15,23,42,.72);
}

body[data-faq-ui="coop"]{
  --faq-wrap-border: rgba(15,23,42,.12);
  --faq-wrap-bg:
    radial-gradient(760px 300px at 0% 0%, rgba(147,197,253,.18), rgba(147,197,253,0) 66%),
    linear-gradient(180deg, rgba(255,255,255,.98), rgba(240,246,255,.94));
  --faq-card-border: rgba(15,23,42,.10);
  --faq-card-bg: rgba(248,251,255,.92);
  --faq-card-shadow: 0 9px 18px rgba(15,23,42,.06);
  --faq-title-ink: rgba(15,23,42,.92);
  --faq-body-ink: rgba(15,23,42,.74);
}

body[data-faq-ui]:not([data-faq-ui="home"]) section#faq:not(.sy-faq),
body[data-faq-ui]:not([data-faq-ui="home"]) section#hub-faq,
body[data-faq-ui]:not([data-faq-ui="home"]) section#faq.sy-faq .sy-faq-inner{
  border:1px solid var(--faq-wrap-border);
  border-radius:var(--radius-lg);
  background:var(--faq-wrap-bg);
  box-shadow:var(--shadow-sm);
  padding:clamp(14px, 2.4vw, 22px);
}

body[data-faq-ui]:not([data-faq-ui="home"]) section#faq:not(.sy-faq) .faq,
body[data-faq-ui]:not([data-faq-ui="home"]) section#faq.sy-faq .sy-faq-list,
body[data-faq-ui]:not([data-faq-ui="home"]) section#hub-faq .hub-faq-list{
  display:grid;
  gap:10px;
  margin-top:12px;
}

body[data-faq-ui]:not([data-faq-ui="home"]) section#faq:not(.sy-faq) .faq details,
body[data-faq-ui]:not([data-faq-ui="home"]) section#faq.sy-faq .sy-qa,
body[data-faq-ui]:not([data-faq-ui="home"]) section#hub-faq .hub-faq-item{
  border:1px solid var(--faq-card-border);
  border-radius:var(--radius-md);
  background:var(--faq-card-bg);
  box-shadow:var(--faq-card-shadow);
}

body[data-faq-ui]:not([data-faq-ui="home"]) section#faq:not(.sy-faq) .faq details,
body[data-faq-ui]:not([data-faq-ui="home"]) section#hub-faq .hub-faq-item{
  padding:12px 14px;
}

body[data-faq-ui]:not([data-faq-ui="home"]) section#faq.sy-faq .sy-qa{
  padding:0;
  overflow:hidden;
}

body[data-faq-ui]:not([data-faq-ui="home"]) section#faq.sy-faq .sy-qa summary{
  padding:12px 14px 8px;
  cursor:default;
  font-weight:760;
  color:var(--faq-title-ink);
}

body[data-faq-ui]:not([data-faq-ui="home"]) section#faq.sy-faq .sy-qa .sy-qa-body{
  padding:0 14px 12px;
  color:var(--faq-body-ink);
  font-size:13px;
  line-height:1.75;
}

body[data-faq-ui]:not([data-faq-ui="home"]) section#faq:not(.sy-faq) .faq summary{
  cursor:default;
  font-weight:760;
  color:var(--faq-title-ink);
}

body[data-faq-ui]:not([data-faq-ui="home"]) section#faq:not(.sy-faq) .faq details > div{
  color:var(--faq-body-ink);
  font-size:13px;
}

body[data-faq-ui]:not([data-faq-ui="home"]) section#hub-faq .hub-faq-item h3{
  margin:0;
  font-weight:760;
  color:var(--faq-title-ink);
}

body[data-faq-ui]:not([data-faq-ui="home"]) section#hub-faq .hub-faq-item p{
  margin-top:8px;
  margin-bottom:0;
  color:var(--faq-body-ink);
  font-size:13px;
  line-height:1.72;
}

body[data-faq-ui="level2"] section#faq:not(.sy-faq) .faq summary,
body[data-faq-ui="level2"] section#faq.sy-faq .sy-qa summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}

body[data-faq-ui="level2"] section#faq:not(.sy-faq) .faq summary::after,
body[data-faq-ui="level2"] section#faq.sy-faq .sy-qa summary::after{
  content:"";
  width:8px;
  height:8px;
  border-radius:999px;
  background:rgba(30,64,175,.38);
  flex:0 0 8px;
}

/* FAQ: hub-faq staggered fade-in */
section#hub-faq[data-animate="1"] .hub-faq-item{
  opacity: 0;
  transform: translate3d(0, 10px, 0);
  transition:
    opacity .72s cubic-bezier(.22,.61,.36,1) var(--delay, 0ms),
    transform .72s cubic-bezier(.22,.61,.36,1) var(--delay, 0ms);
  will-change: opacity, transform;
  backface-visibility: hidden;
}

section#hub-faq[data-animate="1"] .hub-faq-item.is-visible{
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

@media (prefers-reduced-motion: reduce){
  section#hub-faq[data-animate="1"] .hub-faq-item{
    transition: none;
    opacity: 1;
    transform: none;
  }
}

.note{
  background: rgba(15,23,42,.03);
  border: 1px dashed rgba(15,23,42,.18);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  color: rgba(15,23,42,.82);
  line-height: 1.75;
}

/* ---------- Transition divider banner ---------- */
.transition-banner{
  margin-top: 18px;
  border-radius: var(--p-radius);
  overflow: hidden;
  border: 1px solid rgba(15,23,42,.10);
  box-shadow: var(--shadow-sm);
  background:
    linear-gradient(120deg,
      rgba(219,234,254,.92) 0%,
      rgba(239,246,255,.96) 42%,
      rgba(236,253,245,.90) 100%);
  min-height: 140px;
  position: relative;
  isolation: isolate;
}

.transition-banner::before{
  content: "";
  position: absolute;
  inset: -28% -10%;
  background:
    radial-gradient(58% 86% at 20% 28%,
      rgba(59,130,246,.26),
      rgba(59,130,246,0) 72%),
    radial-gradient(52% 76% at 82% 76%,
      rgba(16,185,129,.22),
      rgba(16,185,129,0) 74%);
  pointer-events: none;
}

.transition-banner::after{
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(118deg,
      rgba(255,255,255,0) 0 24px,
      rgba(59,130,246,.16) 24px 30px,
      rgba(255,255,255,0) 30px 68px);
  opacity: .45;
  mix-blend-mode: soft-light;
  pointer-events: none;
}

.transition-banner-inner{
  position: relative;
  padding: var(--space-hero);
  min-height: 140px;
  display:flex;
  align-items:flex-end;
}

.transition-banner-text{
  display:inline-block;
  padding: 10px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.86);
  border: 1px solid rgba(15,23,42,.10);
  color: rgba(15,23,42,.92);
  font-weight: 800;
  letter-spacing: .02em;
}

/* desktop */
@media (min-width: 860px){
  .hero{ padding: calc(var(--space-hero) + 4px); }
  .hero-grid{ grid-template-columns: 1.15fr .85fr; gap: 18px; }
  .hero-figure img{ height: 260px; }
  .grid.cols-2{ grid-template-columns: 1fr 1fr; }
  .grid.cols-3{ grid-template-columns: 1fr 1fr 1fr; }
  .split{ grid-template-columns: 1fr 1fr; }
  .media-card{ grid-template-columns: 200px 1fr; }
  .media-card img{ height: 140px; }
}