/* 凤凰出版传媒集团介绍 · 苹果风：渐变 · 混排 · 留白
   底色只用 #FFF / #F5F5F7 / #000；渐变（红-橙-金，3 色阶）只给关键词与数字页 */
:root {
  --bg: #FFFFFF; --bg-soft: #F5F5F7; --bg-dark: #000000;
  --ink: #1D1D1F; --ink-2: #6E6E73; --ink-3: #86868B;
  --line: rgba(0,0,0,.08);
  --g-phoenix: linear-gradient(90deg, #C8202F 0%, #F06620 52%, #EEB355 100%);
  --font: "Inter", "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --wrap: 1120px;
  --pad: clamp(20px, 5vw, 48px);
  --nav-h: 52px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 8px); -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 17px/1.6 var(--font); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
a { color: inherit; }
h1, h2, h3, p, ol, ul { margin: 0; }
sup { font-size: .62em; line-height: 0; margin-left: 1px; color: var(--ink-3); font-weight: 500; }
sup a { text-decoration: none; color: inherit; padding: 0 1px; }
sup a:hover { color: #F06620; }
.grad { background: var(--g-phoenix); -webkit-background-clip: text; background-clip: text; color: transparent; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--pad); }
.br-m { display: none; }

/* 导航 */
.nav { position: sticky; top: 0; z-index: 50; height: var(--nav-h); background: rgba(255,255,255,.72); -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px); border-bottom: 1px solid var(--line); }
.nav-in { max-width: var(--wrap); height: 100%; margin: 0 auto; padding: 0 var(--pad); display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 15px; letter-spacing: .02em; text-decoration: none; white-space: nowrap; }
.brand-mark { width: 20px; height: 20px; border-radius: 5px; display: block; }
.nav-links { display: flex; gap: 26px; font-size: 13px; color: var(--ink-2); }
.nav-links a { text-decoration: none; transition: color .2s; white-space: nowrap; }
.nav-links a:hover, .nav-links a.on { color: var(--ink); }

/* 首屏 */
.hero { position: relative; min-height: calc(100svh - var(--nav-h)); display: flex; align-items: center; overflow: hidden; background: var(--bg); }
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-word { position: absolute; left: 50%; bottom: -0.16em; transform: translateX(-50%); font: 800 clamp(120px, 24vw, 360px)/1 "Inter", sans-serif; letter-spacing: -0.04em; color: #000; opacity: .045; white-space: nowrap; }
.plume { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .32; }
.hero-in { position: relative; width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 72px var(--pad) 120px; }
.eyebrow { font: 500 13px/1.4 "Inter", sans-serif; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 22px; }
.hero-title { font-weight: 900; font-size: clamp(36px, 9.6vw, 132px); line-height: 1.06; letter-spacing: -0.02em; white-space: nowrap; }
.hero-sub { margin-top: 30px; max-width: 40em; font-size: clamp(15px, 1.35vw, 19px); line-height: 1.7; color: var(--ink-2); font-weight: 400; }
.pills { margin-top: 40px; display: inline-flex; align-items: center; gap: 14px; padding: 10px 24px; border-radius: 999px; background: rgba(255,255,255,.6); border: 1px solid rgba(0,0,0,.06); -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px); font-size: 14px; font-weight: 500; color: var(--ink); }
.pill-sep { color: var(--ink-3); font-weight: 300; }
.scroll-hint { position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%); font-size: 12px; color: var(--ink-3); text-decoration: none; letter-spacing: .1em; }
.scroll-hint::after { content: ""; display: block; width: 1px; height: 28px; margin: 8px auto 0; background: linear-gradient(var(--ink-3), transparent); }

/* 通用分节 */
.sec { padding: clamp(88px, 12vw, 160px) 0; }
.soft { background: var(--bg-soft); }
.dark { background: var(--bg-dark); color: #F5F5F7; }
.kicker { font-size: 13px; font-weight: 500; letter-spacing: .08em; color: var(--ink-3); margin-bottom: 18px; }
.kicker-d { color: #86868B; }
.h2 { font-weight: 700; font-size: clamp(32px, 5.2vw, 64px); line-height: 1.12; letter-spacing: -0.02em; color: var(--ink); }
.h2-d { color: #F5F5F7; }
.head { margin-bottom: clamp(48px, 7vw, 88px); }
.note { margin-top: 20px; font-size: 13px; line-height: 1.7; color: var(--ink-3); font-weight: 300; max-width: 46em; }
.lead { font-size: clamp(19px, 1.9vw, 24px); line-height: 1.6; font-weight: 500; color: var(--ink); }
.body { margin-top: 22px; font-size: 16px; line-height: 1.75; color: var(--ink-2); }

.split { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(32px, 6vw, 96px); align-items: start; }

/* 数字页 */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 64px 48px; margin-top: 28px; }
.stat-n { font: 700 clamp(48px, 5.6vw, 80px)/1 "Inter", sans-serif; letter-spacing: -0.03em; white-space: nowrap; }
.stat-n small { font: 500 clamp(15px, 1.4vw, 19px)/1 var(--font); letter-spacing: 0; margin-left: 6px; color: #F5F5F7; }
.stat-t { margin-top: 16px; font-size: 14px; line-height: 1.6; color: #A1A1A6; max-width: 20em; }
.dark sup { color: #6E6E73; }

/* 时间线 */
.timeline { list-style: none; padding: 0; position: relative; max-width: 880px; }
.timeline::before { content: ""; position: absolute; left: 132px; top: 8px; bottom: 8px; width: 1px; background: var(--line); }
.timeline li { display: grid; grid-template-columns: 132px 1fr; gap: 0; padding: 22px 0; position: relative; }
.timeline li::before { content: ""; position: absolute; left: 129px; top: 34px; width: 7px; height: 7px; border-radius: 50%; background: #F06620; }
.t-year { font: 700 32px/1 "Inter", sans-serif; letter-spacing: -0.02em; color: var(--ink); padding-top: 4px; }
.timeline li > div { padding-left: 36px; }
.timeline h3 { font-size: 19px; font-weight: 600; line-height: 1.4; }
.timeline p { margin-top: 6px; font-size: 15px; color: var(--ink-2); line-height: 1.65; }

/* 业务卡片 */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.card { background: #fff; border-radius: 28px; padding: clamp(28px, 3.4vw, 44px); }
.card-k { font-size: 15px; font-weight: 600; color: var(--ink); }
.card-n { margin-top: 26px; font: 700 clamp(44px, 4.6vw, 60px)/1 "Inter", sans-serif; letter-spacing: -0.03em; color: var(--ink); }
.card-n small { font: 500 16px/1 var(--font); margin-left: 6px; letter-spacing: 0; }
.card-cap { margin-top: 10px; font-size: 13px; color: var(--ink-3); }
.card-list { margin-top: 26px; padding: 22px 0 0; border-top: 1px solid var(--line); list-style: none; display: grid; gap: 10px; }
.card-list li { position: relative; padding-left: 16px; font-size: 15px; line-height: 1.6; color: var(--ink-2); }
.card-list li::before { content: ""; position: absolute; left: 0; top: .72em; width: 5px; height: 5px; border-radius: 50%; background: #C8C8CC; }

/* 数字化 */
.dm { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(28px, 5vw, 80px); padding-bottom: clamp(48px, 6vw, 72px); border-bottom: 1px solid rgba(255,255,255,.12); }
.dm-name { font-size: clamp(22px, 2.4vw, 30px); font-weight: 700; line-height: 1.35; color: #F5F5F7; }
.dm-en { margin-top: 10px; font: 400 13px/1.5 "Inter", var(--font); color: #86868B; }
.dm-r p { font-size: 16px; line-height: 1.8; color: #A1A1A6; }
.dm-r p + p { margin-top: 16px; }
.tiles { margin-top: clamp(48px, 6vw, 72px); display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.tile { background: #1D1D1F; border-radius: 24px; padding: 30px 28px 32px; }
.tile h3 { font-size: 19px; font-weight: 600; color: #F5F5F7; }
.tile p { margin-top: 12px; font-size: 14px; line-height: 1.7; color: #A1A1A6; }
.dfacts { margin-top: clamp(56px, 7vw, 88px); display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.df-n { font: 700 clamp(30px, 3.4vw, 44px)/1.1 "Inter", var(--font); letter-spacing: -0.02em; color: #F5F5F7; }
.df-t { margin-top: 10px; font-size: 13px; line-height: 1.6; color: #86868B; }

/* 出版单位 */
.brands { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border-radius: 24px; overflow: hidden; border: 1px solid var(--line); }
.brand-c { background: #fff; padding: 30px 26px 34px; min-height: 196px; }
.b-y { font: 600 13px/1 "Inter", var(--font); color: var(--ink-3); letter-spacing: .04em; }
.brand-c h3 { margin-top: 18px; font-size: 18px; font-weight: 700; line-height: 1.4; color: var(--ink); }
.brand-c p:last-child { margin-top: 10px; font-size: 14px; line-height: 1.65; color: var(--ink-2); }
.tagline { margin-top: 40px; font-size: 14px; color: var(--ink-2); }

/* 资料来源 */
.src { list-style: none; padding: 0; counter-reset: s; display: grid; gap: 4px; }
.src li { counter-increment: s; position: relative; padding: 18px 0 18px 44px; border-bottom: 1px solid var(--line); scroll-margin-top: calc(var(--nav-h) + 24px); }
.src li::before { content: counter(s); position: absolute; left: 0; top: 18px; font: 600 15px/1.5 "Inter", sans-serif; color: var(--ink-3); }
.src li:target { background: linear-gradient(90deg, rgba(240,102,32,.08), transparent); }
.src a { font-size: 16px; font-weight: 500; line-height: 1.5; color: var(--ink); text-decoration: none; word-break: break-word; }
.src a:hover { text-decoration: underline; text-underline-offset: 3px; }
.src span { display: block; margin-top: 4px; font-size: 13px; color: var(--ink-3); font-weight: 300; }

/* 页脚 */
.foot { background: var(--bg-soft); border-top: 1px solid var(--line); padding: 40px 0 56px; }
.foot-in { display: grid; gap: 10px; }
.foot-main { font-size: 14px; font-weight: 500; color: var(--ink); }
.foot-sub { font-size: 12px; line-height: 1.7; color: var(--ink-3); font-weight: 300; max-width: 60em; }
.foot-top { margin-top: 8px; font-size: 12px; color: var(--ink-2); }

/* 滚动渐显（克制） */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1); }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
}

/* 响应式 */
@media (max-width: 1024px) {
  .brands { grid-template-columns: repeat(3, 1fr); }
  .tiles { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 820px) {
  .split, .dm { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 48px 28px; }
  .cards { grid-template-columns: 1fr; }
  .brands { grid-template-columns: repeat(2, 1fr); }
  .dfacts { grid-template-columns: 1fr; gap: 28px; }
  .nav-links { gap: 18px; overflow-x: auto; scrollbar-width: none; -webkit-mask-image: linear-gradient(90deg, #000 85%, transparent); mask-image: linear-gradient(90deg, #000 85%, transparent); padding-right: 24px; }
  .nav-links::-webkit-scrollbar { display: none; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .br-d { display: none; }
  .br-m { display: inline; }
  .brand { font-size: 14px; }
  .hero-in { padding: 56px var(--pad) 112px; }
  .hero-title { font-size: clamp(44px, 14.4vw, 60px); white-space: normal; line-height: 1.1; }
  .eyebrow { font-size: 11px; letter-spacing: .14em; }
  .pills { gap: 10px; padding: 9px 18px; font-size: 13px; }
  .stats { grid-template-columns: 1fr 1fr; gap: 40px 20px; }
  .stat-n { font-size: 34px; }
  .stat-n small { font-size: 12px; margin-left: 3px; }
  .stat-t { font-size: 13px; }
  .timeline::before { left: 0; }
  .timeline li { grid-template-columns: 1fr; padding: 18px 0 18px 24px; }
  .timeline li::before { left: -3px; top: 26px; }
  .timeline li > div { padding-left: 0; margin-top: 8px; }
  .t-year { font-size: 26px; padding-top: 0; }
  .tiles { grid-template-columns: 1fr; }
  .brands { grid-template-columns: 1fr; }
  .brand-c { min-height: 0; padding: 24px 22px 26px; }
  .card { border-radius: 22px; }
}