/* ============================================
   星炉 Star Furnace 官网样式
   调性对齐桌面端：暖米白 + 暖棕 + 磨砂玻璃
   ============================================ */

:root {
  --bg: #f7f5f2;
  --panel: #ffffff;
  --soft: #faf8f5;
  --text: #2d2722;
  --text-2: #70675f;
  --text-3: #a79f97;
  --border: #e7e1dc;
  --border-strong: #d3c8bf;
  --primary: #6f5140;
  --primary-hover: #5d4132;
  --accent: #9c745d;
  --accent-soft: #f4ede8;
  --accent-text: #6f4935;
  --ember: #f25c54;
  --radius-card: 20px;
  --radius-control: 12px;
  --radius-pill: 999px;
  --glass-bg: linear-gradient(160deg, rgba(255, 255, 255, 0.62), rgba(255, 255, 255, 0.34));
  --glass-border: rgba(255, 255, 255, 0.65);
  --shadow-card: 0 24px 60px -36px rgba(62, 51, 44, 0.35), 0 4px 16px -10px rgba(62, 51, 44, 0.18);
  --shadow-float: 0 40px 90px -48px rgba(62, 51, 44, 0.45);
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---------- 背景光斑：让磨砂玻璃有东西可透 ---------- */

.bg-scene {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background:
    radial-gradient(880px 620px at 82% -6%, rgba(242, 92, 84, 0.14), transparent 62%),
    radial-gradient(760px 560px at 8% 12%, rgba(156, 116, 93, 0.18), transparent 60%),
    radial-gradient(900px 700px at 50% 108%, rgba(178, 138, 87, 0.16), transparent 58%),
    linear-gradient(180deg, #faf8f5 0%, #f7f5f2 42%, #f4efe9 100%);
}

.bg-scene::before,
.bg-scene::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
}

.bg-scene::before {
  width: 560px;
  height: 560px;
  top: -180px;
  right: -120px;
  background: radial-gradient(circle, rgba(242, 133, 92, 0.35), transparent 70%);
  animation: drift 26s var(--ease) infinite alternate;
}

.bg-scene::after {
  width: 640px;
  height: 640px;
  bottom: -260px;
  left: -160px;
  background: radial-gradient(circle, rgba(156, 116, 93, 0.32), transparent 70%);
  animation: drift 32s var(--ease) infinite alternate-reverse;
}

@keyframes drift {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(48px, 36px) scale(1.08); }
}

/* ---------- 通用 ---------- */

.container {
  width: min(1120px, calc(100% - 48px));
  margin-inline: auto;
}

.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72), var(--shadow-card);
  -webkit-backdrop-filter: blur(18px) saturate(1.08);
  backdrop-filter: blur(18px) saturate(1.08);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.6);
  color: var(--accent-text);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ember);
  box-shadow: 0 0 10px rgba(242, 92, 84, 0.65);
}

.section-title {
  margin: 18px 0 12px;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: 0.01em;
}

.section-lede {
  max-width: 640px;
  margin: 0;
  color: var(--text-2);
  font-size: 16px;
}

/* ---------- 导航 ---------- */

.site-nav {
  position: sticky;
  top: 16px;
  z-index: 100;
  width: min(1120px, calc(100% - 48px));
  margin: 16px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 12px 10px 20px;
  border-radius: var(--radius-pill);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 17px;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  object-fit: cover;
  box-shadow: 0 10px 22px -12px rgba(62, 51, 44, 0.45);
}

.brand small {
  color: var(--text-3);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  color: var(--text-2);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: all 160ms var(--ease);
}

.nav-links a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.75);
}

.nav-links a.active {
  color: var(--accent-text);
  background: var(--accent-soft);
}

.nav-links a.nav-cta {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 10px 22px -10px rgba(111, 81, 64, 0.65);
}

.nav-links a.nav-cta:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 14px 30px;
  border: 0;
  border-radius: var(--radius-pill);
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: all 180ms var(--ease);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(150deg, #8a6450, var(--primary) 60%);
  box-shadow: 0 18px 36px -14px rgba(111, 81, 64, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 44px -16px rgba(111, 81, 64, 0.75), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.btn-ghost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--border-strong);
}

.btn-ghost:hover {
  background: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

/* ---------- Hero ---------- */

.hero {
  padding: 96px 0 40px;
  text-align: center;
}

.hero h1 {
  margin: 26px 0 0;
  font-size: clamp(44px, 7.5vw, 76px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: 0.02em;
}

.hero h1 .grad {
  background: linear-gradient(120deg, var(--primary) 10%, var(--ember) 55%, #f2825c 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  max-width: 560px;
  margin: 22px auto 0;
  color: var(--text-2);
  font-size: clamp(16px, 2.2vw, 19px);
}

.hero-sub strong { color: var(--accent-text); }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 36px;
}

.hero-note {
  margin-top: 14px;
  color: var(--text-3);
  font-size: 13px;
}

/* ---------- Hero 模拟窗口 ---------- */

.hero-window {
  max-width: 880px;
  margin: 64px auto 0;
  border-radius: var(--radius-card);
  overflow: hidden;
  text-align: left;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72), var(--shadow-float);
}

.hw-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 18px;
  border-bottom: 1px solid rgba(231, 225, 220, 0.7);
}

.hw-dot { width: 11px; height: 11px; border-radius: 50%; }
.hw-dot.r { background: #f97066; }
.hw-dot.y { background: #f5c04f; }
.hw-dot.g { background: #55c27a; }

.hw-title {
  margin-left: 10px;
  color: var(--text-3);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.hw-body {
  position: relative;
  overflow: hidden;
  height: 350px;
  padding: 26px 28px 30px;
}

.hero-chat-loop {
  display: flex;
  flex-direction: column;
  gap: 0;
  animation: hero-chat-loop 14s ease-in-out infinite;
}

.hero-chat-loop > .chat-row {
  max-height: 0;
  margin-top: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(12px);
  animation-duration: 14s;
  animation-timing-function: ease-in-out;
  animation-iteration-count: infinite;
}

.chat-row { display: flex; }

.chat-row.user {
  justify-content: flex-end;
  animation-name: hero-row-user;
}

.hero-chat-loop > .chat-row:nth-child(2) {
  animation-name: hero-row-editor;
}

.hero-chat-loop > .chat-row:nth-child(3) {
  animation-name: hero-row-writing;
}

.chat-bubble {
  max-width: 78%;
  padding: 12px 18px;
  border-radius: 16px;
  font-size: 14.5px;
  line-height: 1.75;
}

.chat-row.user .chat-bubble {
  background: var(--accent-soft);
  border: 1px solid #dbcac0;
  color: var(--accent-text);
  border-bottom-right-radius: 6px;
}

.chat-row.ai .chat-bubble {
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--border);
  color: var(--text);
  border-bottom-left-radius: 6px;
}

.chat-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
  color: var(--ember);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.chat-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.chat-typing {
  display: inline-flex;
  gap: 5px;
  padding: 4px 2px 0;
}

.chat-typing i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-3);
  animation: blink 1.2s infinite;
}

.chat-typing i:nth-child(2) { animation-delay: 0.2s; }
.chat-typing i:nth-child(3) { animation-delay: 0.4s; }

@keyframes blink {
  0%, 60%, 100% { opacity: 0.25; }
  30% { opacity: 1; }
}

/* ---------- 首页正文演示 ---------- */

.chat-writing-demo {
  width: min(650px, 78%);
  min-height: 118px;
}

.chat-writing-status {
  display: flex;
  align-items: center;
  gap: 8px;
}

.chat-writing-demo .chat-tag {
  margin-bottom: 0;
}

.chat-writing-output {
  display: grid;
  gap: 3px;
  margin-top: 10px;
  color: var(--text);
  font-size: 14.5px;
  line-height: 1.85;
}

.chat-writing-output span {
  display: block;
  width: fit-content;
  max-width: 100%;
  overflow: hidden;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(3px);
  clip-path: inset(0 100% 0 0);
  animation-duration: 14s;
  animation-timing-function: ease;
  animation-iteration-count: infinite;
}

.chat-writing-output span:nth-child(1) {
  animation-name: writing-line-1;
}

.chat-writing-output span:nth-child(2) {
  animation-name: writing-line-2;
}

.chat-writing-output span:nth-child(3) {
  animation-name: writing-line-3;
}

.chat-tool-row {
  max-height: 0;
  margin-top: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(10px);
}

.chat-tool-canon {
  animation: tool-row-canon 14s ease-in-out infinite;
}

.chat-tool-save {
  animation: tool-row-save 14s ease-in-out infinite;
}

.chat-tool-demo {
  max-width: 58%;
  color: var(--text-2);
  box-shadow: 0 12px 28px -24px rgba(84, 62, 47, 0.46);
}

.chat-tool-demo .chat-tag {
  margin-bottom: 4px;
}

@keyframes hero-chat-loop {
  0% {
    opacity: 0;
    transform: translateY(12px);
  }

  6%, 58% {
    opacity: 1;
    transform: translateY(0);
  }

  70%, 77% {
    opacity: 1;
    transform: translateY(-96px);
  }

  84%, 88% {
    opacity: 1;
    transform: translateY(-184px);
  }

  94%, 100% {
    opacity: 0;
    transform: translateY(-184px);
  }
}

@keyframes hero-row-user {
  0%, 4% {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    transform: translate(18px, 10px);
  }

  9%, 88% {
    max-height: 80px;
    margin-top: 0;
    opacity: 1;
    transform: translate(0, 0);
  }

  94%, 100% {
    max-height: 80px;
    margin-top: 0;
    opacity: 0;
    transform: translateY(-4px);
  }
}

@keyframes hero-row-editor {
  0%, 14% {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    transform: translate(-12px, 10px);
  }

  20%, 88% {
    max-height: 112px;
    margin-top: 14px;
    opacity: 1;
    transform: translate(0, 0);
  }

  94%, 100% {
    max-height: 112px;
    margin-top: 14px;
    opacity: 0;
    transform: translateY(-4px);
  }
}

@keyframes hero-row-writing {
  0%, 29% {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    transform: translate(-12px, 10px);
  }

  35%, 88% {
    max-height: 170px;
    margin-top: 14px;
    opacity: 1;
    transform: translate(0, 0);
  }

  94%, 100% {
    max-height: 170px;
    margin-top: 14px;
    opacity: 0;
    transform: translateY(-4px);
  }
}

@keyframes writing-line-1 {
  0%, 38% {
    opacity: 0;
    transform: translateY(3px);
    clip-path: inset(0 100% 0 0);
  }

  40% {
    opacity: 1;
    transform: translateY(0);
  }

  48%, 88% {
    opacity: 1;
    transform: translateY(0);
    clip-path: inset(0 0 0 0);
  }

  94%, 100% {
    opacity: 0;
    transform: translateY(-3px);
    clip-path: inset(0 0 0 0);
  }
}

@keyframes writing-line-2 {
  0%, 46% {
    opacity: 0;
    transform: translateY(3px);
    clip-path: inset(0 100% 0 0);
  }

  48% {
    opacity: 1;
    transform: translateY(0);
  }

  56%, 88% {
    opacity: 1;
    transform: translateY(0);
    clip-path: inset(0 0 0 0);
  }

  94%, 100% {
    opacity: 0;
    transform: translateY(-3px);
    clip-path: inset(0 0 0 0);
  }
}

@keyframes writing-line-3 {
  0%, 54% {
    opacity: 0;
    transform: translateY(3px);
    clip-path: inset(0 100% 0 0);
  }

  56% {
    opacity: 1;
    transform: translateY(0);
  }

  64%, 88% {
    opacity: 1;
    transform: translateY(0);
    clip-path: inset(0 0 0 0);
  }

  94%, 100% {
    opacity: 0;
    transform: translateY(-3px);
    clip-path: inset(0 0 0 0);
  }
}

@keyframes tool-row-canon {
  0%, 62% {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    transform: translateY(10px);
  }

  68%, 88% {
    max-height: 96px;
    margin-top: 14px;
    opacity: 1;
    transform: translateY(0);
  }

  94%, 100% {
    max-height: 96px;
    margin-top: 14px;
    opacity: 0;
    transform: translateY(-4px);
  }
}

@keyframes tool-row-save {
  0%, 73% {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    transform: translateY(10px);
  }

  80%, 88% {
    max-height: 96px;
    margin-top: 14px;
    opacity: 1;
    transform: translateY(0);
  }

  94%, 100% {
    max-height: 96px;
    margin-top: 14px;
    opacity: 0;
    transform: translateY(-4px);
  }
}

/* ---------- 三大卖点 ---------- */

.pillars {
  padding: 88px 0 20px;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 44px;
}

.pillar {
  position: relative;
  display: block;
  padding: 30px 28px 34px;
  border-radius: var(--radius-card);
  text-decoration: none;
  color: inherit;
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease);
}

.pillar:hover {
  transform: translateY(-6px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72), var(--shadow-float);
}

.pillar-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  font-size: 24px;
  background: linear-gradient(150deg, #fff, var(--accent-soft));
  border: 1px solid var(--border);
  box-shadow: 0 10px 22px -14px rgba(111, 81, 64, 0.55);
}

.pillar h3 {
  margin: 20px 0 8px;
  font-size: 20px;
  font-weight: 800;
}

.pillar p {
  margin: 0;
  color: var(--text-2);
  font-size: 14.5px;
}

.pillar .more {
  display: inline-block;
  margin-top: 16px;
  color: var(--accent-text);
  font-size: 13.5px;
  font-weight: 700;
}

.pillar .more::after {
  content: " →";
  transition: margin 160ms var(--ease);
}

.pillar:hover .more::after { margin-left: 4px; }

/* ---------- 工作流三步 ---------- */

.flow {
  padding: 96px 0 30px;
}

.flow-head {
  max-width: 620px;
}

.flow-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 48px;
  counter-reset: step;
}

.flow-step {
  position: relative;
  padding: 34px 28px 30px;
  border-radius: var(--radius-card);
}

.flow-num {
  font-size: 42px;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(160deg, var(--accent), var(--ember));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: 0.85;
}

.flow-step h3 {
  margin: 16px 0 8px;
  font-size: 19px;
  font-weight: 800;
}

.flow-step p {
  margin: 0;
  color: var(--text-2);
  font-size: 14.5px;
}

/* ---------- 下载区 ---------- */

.download {
  padding: 100px 0 90px;
}

.download-card {
  padding: clamp(40px, 6vw, 72px);
  border-radius: 28px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.download-card::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  top: -220px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 92, 84, 0.22), transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}

.download-card h2 {
  margin: 14px 0 10px;
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800;
}

.download-card > p {
  max-width: 480px;
  margin: 0 auto;
  color: var(--text-2);
}

.dl-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 34px;
}

.dl-soon {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
}

.dl-soon span {
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  border: 1px dashed var(--border-strong);
  color: var(--text-3);
  font-size: 13.5px;
  font-weight: 600;
}

.windows-install-note {
  width: min(680px, 100%);
  margin: 28px auto 0;
  padding: 18px 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  text-align: left;
  border: 1px solid rgba(194, 158, 123, 0.38);
  border-radius: 16px;
  background: rgba(255, 250, 244, 0.72);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.78);
}

.windows-install-note-icon {
  flex: 0 0 auto;
  width: 23px;
  height: 23px;
  display: grid;
  place-items: center;
  margin-top: 1px;
  border: 1px solid rgba(156, 116, 93, 0.34);
  border-radius: 50%;
  color: var(--accent-text);
  background: rgba(244, 237, 232, 0.92);
  font-family: Georgia, serif;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
}

.windows-install-note-content {
  min-width: 0;
}

.windows-install-note-content > strong {
  display: block;
  color: var(--text);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.6;
}

.windows-install-note-content > p {
  margin: 5px 0 0;
  color: var(--text-2);
  font-size: 13px;
  line-height: 1.75;
}

.windows-install-guide {
  margin-top: 8px;
}

.windows-install-guide summary {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--accent-text);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.6;
  cursor: pointer;
  list-style: none;
  border-radius: 6px;
}

.windows-install-guide summary::-webkit-details-marker {
  display: none;
}

.windows-install-guide-chevron {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(156, 116, 93, 0.1);
  box-shadow: inset 0 0 0 1px rgba(156, 116, 93, 0.16);
  transition:
    transform 180ms var(--ease),
    background-color 160ms var(--ease),
    box-shadow 160ms var(--ease);
}

.windows-install-guide-chevron::before {
  content: "";
  width: 5px;
  height: 5px;
  margin-top: -2px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
}

.windows-install-guide[open] .windows-install-guide-chevron {
  transform: rotate(180deg);
}

.windows-install-guide summary:hover {
  color: var(--primary-hover);
}

.windows-install-guide summary:hover .windows-install-guide-chevron {
  background: rgba(156, 116, 93, 0.17);
  box-shadow: inset 0 0 0 1px rgba(156, 116, 93, 0.26);
}

.windows-install-guide summary:focus-visible {
  outline: 2px solid rgba(111, 81, 64, 0.42);
  outline-offset: 3px;
}

.windows-install-guide summary:focus-visible .windows-install-guide-chevron {
  background: rgba(156, 116, 93, 0.18);
  box-shadow:
    inset 0 0 0 1px rgba(156, 116, 93, 0.3),
    0 0 0 3px rgba(156, 116, 93, 0.1);
}

.windows-install-guide-body {
  margin-top: 9px;
  padding: 14px;
  border-left: 2px solid rgba(156, 116, 93, 0.28);
  background: rgba(255, 255, 255, 0.38);
}

.windows-install-guide-step {
  display: grid;
  gap: 11px;
}

.windows-install-guide-step + .windows-install-guide-step {
  margin-top: 15px;
  padding-top: 14px;
  border-top: 1px solid rgba(194, 158, 123, 0.2);
}

.windows-install-guide-heading {
  display: flex;
  align-items: flex-start;
  gap: 9px;
}

.windows-install-guide-number {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  margin-top: 1px;
  border-radius: 50%;
  color: #fff;
  background: var(--accent);
  font-size: 11px;
  font-weight: 800;
  line-height: 1;
}

.windows-install-guide-heading p {
  margin: 0;
  color: var(--text-2);
  font-size: 12.5px;
  line-height: 1.7;
}

.windows-install-guide-heading strong {
  display: block;
  color: var(--accent-text);
  font-size: 13px;
}

.windows-install-guide-screenshots {
  display: grid;
  grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.92fr);
  align-items: start;
  gap: 10px;
}

.windows-install-guide-screenshots figure {
  min-width: 0;
  margin: 0;
  padding: 7px;
  border: 1px solid rgba(211, 200, 191, 0.72);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 8px 20px -18px rgba(62, 51, 44, 0.45);
}

.windows-install-guide-screenshots a {
  display: block;
  overflow: hidden;
  border-radius: 8px;
  cursor: zoom-in;
}

.windows-install-guide-screenshots a:focus-visible {
  outline: 2px solid rgba(111, 81, 64, 0.48);
  outline-offset: 2px;
}

.windows-install-guide-screenshots img {
  display: block;
  width: 100%;
  height: auto;
  background: #f4f2ef;
}

.windows-install-guide-screenshots figcaption {
  margin-top: 6px;
  color: var(--text-3);
  font-size: 11.5px;
  line-height: 1.5;
  text-align: center;
}

/* ---------- 页脚 ---------- */

.site-footer {
  padding: 34px 0 44px;
  border-top: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.45);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.footer-links {
  display: flex;
  gap: 22px;
}

.footer-links a {
  color: var(--text-2);
  font-size: 13.5px;
  text-decoration: none;
}

.footer-links a:hover { color: var(--accent-text); }

.footer-copy {
  color: var(--text-3);
  font-size: 13px;
}

/* ============================================
   功能介绍页
   ============================================ */

.page-hero {
  padding: 84px 0 24px;
}

.page-hero .section-lede { max-width: 720px; }

.principle {
  margin-top: 34px;
  padding: 26px 30px;
  border-radius: var(--radius-card);
  border-left: 4px solid var(--ember);
  font-size: 15.5px;
  color: var(--text-2);
}

.principle strong { color: var(--accent-text); }

/* 功能区块 */

.features-wrap {
  display: grid;
  gap: 26px;
  padding: 56px 0 30px;
}

.feature-card {
  padding: clamp(28px, 4vw, 44px);
  border-radius: var(--radius-card);
  scroll-margin-top: 110px;
}

.feature-head {
  display: flex;
  align-items: flex-start;
  gap: 18px;
}

.feature-no {
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  font-size: 17px;
  font-weight: 900;
  color: #fff;
  background: linear-gradient(150deg, var(--accent), var(--primary));
  box-shadow: 0 10px 22px -12px rgba(111, 81, 64, 0.7);
}

.feature-head h2 {
  margin: 8px 0 0;
  font-size: clamp(21px, 3vw, 26px);
  font-weight: 800;
  line-height: 1.3;
}

.feature-card > p {
  margin: 18px 0 0;
  color: var(--text-2);
  font-size: 15px;
}

.feature-card ul,
.feature-card ol {
  margin: 18px 0 0;
  padding-left: 22px;
  color: var(--text-2);
  font-size: 14.5px;
  display: grid;
  gap: 8px;
}

.feature-card li::marker { color: var(--accent); font-weight: 700; }

.feature-card li strong { color: var(--accent-text); }

/* 小表格 */

.feature-table {
  width: 100%;
  margin-top: 20px;
  border-collapse: collapse;
  font-size: 14.5px;
  border-radius: 14px;
  overflow: hidden;
}

.feature-table th,
.feature-table td {
  padding: 13px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.feature-table th {
  background: var(--accent-soft);
  color: var(--accent-text);
  font-weight: 800;
  white-space: nowrap;
}

.feature-table td { color: var(--text-2); background: rgba(255,255,255,0.55); }

.feature-table tr:last-child th,
.feature-table tr:last-child td { border-bottom: 0; }

/* 建议工作流 */

.workflow-cta {
  padding: 70px 0 90px;
}

.workflow-card {
  padding: clamp(34px, 5vw, 56px);
  border-radius: 28px;
}

.workflow-card ol {
  margin: 26px 0 0;
  padding-left: 24px;
  display: grid;
  gap: 12px;
  color: var(--text-2);
  font-size: 15px;
}

.workflow-card li::marker {
  color: var(--ember);
  font-weight: 900;
}

.workflow-card .btn { margin-top: 32px; }

/* ---------- 基础信息页 ---------- */

.legal-wrap {
  display: grid;
  gap: 24px;
  padding: 48px 0 90px;
}

.legal-card {
  padding: clamp(30px, 5vw, 52px);
  border-radius: var(--radius-card);
}

.legal-card h2 {
  margin: 30px 0 10px;
  font-size: clamp(20px, 3vw, 24px);
  font-weight: 800;
}

.legal-card h2:first-child { margin-top: 0; }

.legal-card p,
.legal-card li {
  color: var(--text-2);
  font-size: 15px;
}

.legal-card p {
  margin: 10px 0 0;
}

.legal-card ul,
.legal-card ol {
  margin: 14px 0 0;
  padding-left: 22px;
  display: grid;
  gap: 8px;
}

.legal-card li::marker {
  color: var(--accent);
  font-weight: 700;
}

.legal-meta {
  margin: 16px 0 0;
  color: var(--text-3);
  font-size: 13.5px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 24px;
}

.contact-item {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.5);
}

.contact-item strong {
  display: block;
  color: var(--text);
  font-size: 17px;
  font-weight: 800;
}

.contact-item span,
.contact-item a {
  display: block;
  margin-top: 8px;
  color: var(--text-2);
  font-size: 14.5px;
  overflow-wrap: anywhere;
}

.contact-item a:hover { color: var(--accent-text); }

/* ---------- 响应式 ---------- */

@media (max-width: 900px) {
  .pillars-grid,
  .flow-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 72px; }
}

@media (max-width: 640px) {
  .site-nav { padding: 8px 10px 8px 16px; }
  .brand small { display: none; }
  .nav-links a { padding: 7px 12px; font-size: 13px; }
  .hw-body { padding: 20px 16px 24px; }
  .chat-bubble { max-width: 92%; }
  .feature-head { gap: 14px; }
  .windows-install-note { padding: 16px; gap: 11px; }
  .windows-install-guide-screenshots { grid-template-columns: 1fr; }
}