/* ==========================================================================
   食光宝盒 TO GO BOX — 优化版样式
   设计原则：惜食 · 轻奢 · 可持续
   主色：墨黑 + 鲜绿（环保惜食暗示） /  撞色：暖橙（惊喜盲盒）
   ========================================================================== */

:root {
  --ink:        #0E0E0E;          /* 墨黑 - 主品牌色 */
  --ink-2:      #1A1A1A;
  --ink-3:      #2A2A2A;
  --line:       #E5E1D8;          /* 纸感分隔线 */
  --line-2:     #D6D0C2;
  --paper:      #FAF7F2;          /* 奶油纸感底 */
  --paper-2:    #F1ECE3;
  --bone:       #E9E2D3;
  --green:      #00A651;          /* 鲜绿 - 惜食/环保 */
  --green-deep: #007236;
  --green-soft: #E5F4EC;
  --orange:     #FF6B2C;          /* 撞色橙 - 惊喜 */
  --orange-deep:#E04D0D;
  --cream:      #FFF8EE;
  --text:       #1A1A1A;
  --text-2:     #5A5A5A;
  --text-3:     #6B6B6B;
  --white:      #FFFFFF;
  --radius-sm:  6px;
  --radius:     12px;
  --radius-lg:  20px;
  --radius-xl:  28px;
  --shadow-1:   0 2px 8px rgba(14,14,14,.04);
  --shadow-2:   0 12px 32px rgba(14,14,14,.08);
  --shadow-3:   0 24px 64px rgba(14,14,14,.12);
  --container:  1280px;
  --ease:       cubic-bezier(.2,.7,.2,1);
  --t-fast:     .25s;
  --t:          .5s;
  --t-slow:     .9s;
}

/* ===== Reset & Base =================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--t-fast) var(--ease); }
a:hover { color: var(--green); }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 700; line-height: 1.15; letter-spacing: -.01em; }
p { margin: 0; }
input, textarea, select { font: inherit; }
:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 4px; }

/* ===== Layout Helpers ================================================ */
.wrap { max-width: var(--container); margin: 0 auto; padding: 0 28px; }
@media (max-width: 720px) { .wrap { padding: 0 20px; } }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; font-weight: 600; letter-spacing: .18em; text-transform: uppercase;
  color: var(--green-deep);
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--green); }
.eyebrow.inv { color: var(--green); }
.eyebrow.inv::before { background: var(--green); }

.section { padding: 120px 0; }
@media (max-width: 720px) { .section { padding: 72px 0; } }
.section-head { max-width: 760px; margin: 0 0 64px; }
.section-head.center { margin: 0 auto 64px; text-align: center; }
.section-head h2 {
  font-size: clamp(32px, 4.2vw, 54px);
  letter-spacing: -.02em;
  margin: 16px 0 18px;
  /* 自动平衡行宽，避免"标点/单字独占一行" */
  text-wrap: balance;
  word-break: keep-all;
  overflow-wrap: break-word;
}
.section-head p {
  color: var(--text-2);
  font-size: clamp(15px, 1.4vw, 18px);
  line-height: 1.7;
  word-break: keep-all;
  overflow-wrap: break-word;
}

/* ===== Buttons ======================================================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 16px 28px; border-radius: 999px; font-weight: 600; font-size: 15px;
  transition: transform var(--t-fast) var(--ease), background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
  white-space: nowrap;
}
.btn .arrow { transition: transform var(--t-fast) var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }
.btn-primary { background: var(--ink); color: var(--white); }
.btn-primary:hover { background: var(--green); color: var(--white); transform: translateY(-2px); box-shadow: var(--shadow-2); }
.btn-green { background: var(--green-deep); color: var(--white); }
.btn-green:hover { background: #00582B; color: var(--white); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(0,114,54,.35); }
.btn-ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--white); }
.btn-ghost-light { background: transparent; color: var(--white); border: 1.5px solid rgba(255,255,255,.6); }
.btn-ghost-light:hover { background: var(--white); color: var(--ink); border-color: var(--white); }
.btn-lg { padding: 19px 36px; font-size: 16px; }

/* ===== Header / Nav =================================================== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 18px 0;
  background: rgba(250,247,242,.72);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid transparent;
  transition: background var(--t) var(--ease), border-color var(--t) var(--ease), padding var(--t) var(--ease);
}
.site-header.is-stuck {
  background: rgba(250,247,242,.96);
  border-bottom-color: var(--line);
  padding: 12px 0;
}
.nav {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 48px; width: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-text strong { font-size: 17px; letter-spacing: -.01em; color: var(--ink); }
.brand-text span { font-size: 10px; letter-spacing: .25em; color: var(--text-3); margin-top: 4px; }

.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-links a {
  position: relative; font-size: 14px; font-weight: 500; color: var(--text-2); padding: 6px 0;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 1.5px; background: var(--green); transform: scaleX(0); transform-origin: left;
  transition: transform var(--t) var(--ease);
}
.nav-links a:hover, .nav-links a.is-active { color: var(--ink); }
.nav-links a:hover::after, .nav-links a.is-active::after { transform: scaleX(1); }

.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-cta .btn { padding: 11px 20px; font-size: 14px; }

.nav-toggle { display: none; width: 40px; height: 40px; align-items: center; justify-content: center; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block; width: 22px; height: 1.5px; background: var(--ink); transition: transform var(--t-fast) var(--ease), opacity var(--t-fast) var(--ease);
}
.nav-toggle span { position: relative; }
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; }
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after  { top: 7px; }
.nav-toggle.is-open span { background: transparent; }
.nav-toggle.is-open span::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span::after  { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 960px) {
  .nav-links, .nav-cta .desktop-only { display: none; }
  .nav-toggle { display: inline-flex; }
}

/* ===== Mobile Drawer ================================================== */
.drawer {
  position: fixed; inset: 0; z-index: 90; pointer-events: none;
}
.drawer::before {
  content: ""; position: absolute; inset: 0; background: rgba(14,14,14,.5);
  opacity: 0; transition: opacity var(--t) var(--ease);
}
.drawer-panel {
  position: absolute; right: 0; top: 0; bottom: 0; width: min(360px, 86vw);
  background: var(--paper); padding: 96px 28px 28px;
  transform: translateX(100%); transition: transform var(--t) var(--ease);
  display: flex; flex-direction: column; gap: 8px; overflow-y: auto;
}
.drawer.is-open { pointer-events: auto; }
.drawer.is-open::before { opacity: 1; }
.drawer.is-open .drawer-panel { transform: translateX(0); }
.drawer a { display: block; padding: 14px 0; font-size: 18px; font-weight: 600; border-bottom: 1px solid var(--line); }
.drawer .btn { margin-top: 24px; }

/* ===== Hero =========================================================== */
.hero {
  position: relative; padding: 168px 0 100px; overflow: hidden;
  background: linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
}
.hero::before {
  content: ""; position: absolute; right: -200px; top: -120px; width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(0,166,81,.12) 0%, transparent 60%);
  pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; left: -200px; bottom: -200px; width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(255,107,44,.08) 0%, transparent 60%);
  pointer-events: none;
}
.hero-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 80px; align-items: center;
}
@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; gap: 48px; } }

.hero h1 {
  font-size: clamp(44px, 6vw, 84px);
  letter-spacing: -.035em; line-height: 1.05;
  margin: 24px 0 28px;
  /* 自动平衡行宽，避免"标点/单字独占一行" */
  text-wrap: balance;
  word-break: keep-all;
  overflow-wrap: break-word;
}
.hero h1 .hl {
  position: relative; display: inline-block; color: var(--green);
  white-space: nowrap;
}
.hero h1 .hl::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 6%;
  height: 22%; background: rgba(255,107,44,.22); z-index: -1; border-radius: 4px;
}
.hero-lede {
  font-size: clamp(16px, 1.5vw, 19px);
  color: var(--text-2); line-height: 1.7; max-width: 540px; margin-bottom: 40px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  margin-top: 64px; padding-top: 32px; border-top: 1px solid var(--line);
  max-width: 540px;
}
.hero-stat strong {
  display: block; font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 700; letter-spacing: -.02em; line-height: 1; color: var(--ink);
}
.hero-stat strong sup { font-size: .5em; color: var(--green); margin-left: 2px; }
.hero-stat span { display: block; font-size: 13px; color: var(--text-3); margin-top: 8px; letter-spacing: .02em; }

.hero-visual { position: relative; }
.hero-card {
  position: relative; aspect-ratio: 4/5; border-radius: var(--radius-xl); overflow: hidden;
  box-shadow: var(--shadow-3);
  background: var(--ink);
}
.hero-card img { width: 100%; height: 100%; object-fit: cover; }
.hero-card .label {
  position: absolute; left: 24px; top: 24px;
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.92); backdrop-filter: blur(10px);
  padding: 8px 14px; border-radius: 999px;
  font-size: 12px; font-weight: 600; color: var(--ink);
}
.hero-card .label::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--green); animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.4); opacity: .5; } }

.hero-float {
  position: absolute; right: -28px; bottom: 48px;
  background: var(--white); border-radius: var(--radius-lg);
  padding: 20px 24px; box-shadow: var(--shadow-3);
  display: flex; align-items: center; gap: 16px;
  max-width: 280px;
}
.hero-float .ico {
  width: 48px; height: 48px; border-radius: 12px; background: var(--green-soft);
  display: flex; align-items: center; justify-content: center; color: var(--green-deep); flex-shrink: 0;
}
.hero-float strong { display: block; font-size: 15px; color: var(--ink); }
.hero-float small { display: block; font-size: 12px; color: var(--text-3); margin-top: 2px; }

@media (max-width: 720px) {
  .hero-float { right: 12px; bottom: 12px; padding: 14px 18px; max-width: 240px; }
}

/* ===== Trust Strip ==================================================== */
.trust {
  background: var(--ink); color: var(--white);
  padding: 36px 0; border-block: 1px solid var(--ink-3);
}
.trust-row { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.trust-label { font-size: 12px; letter-spacing: .25em; text-transform: uppercase; color: rgba(255,255,255,.5); }
.trust-logos { display: flex; align-items: center; gap: clamp(24px, 4vw, 56px); flex-wrap: wrap; }
.trust-logos span {
  font-size: clamp(16px, 1.6vw, 22px); font-weight: 700; letter-spacing: -.01em;
  color: rgba(255,255,255,.92); opacity: .9;
  transition: opacity var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}
.trust-logos span:hover { opacity: 1; transform: translateY(-2px); }

/* ===== Triple Win (Why) =============================================== */
.triple { background: var(--paper); }
.triple-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
@media (max-width: 960px) { .triple-grid { grid-template-columns: 1fr; } }

.t-card {
  position: relative; padding: 40px 32px; border-radius: var(--radius-lg);
  background: var(--white); border: 1px solid var(--line);
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease), border-color var(--t) var(--ease);
}
.t-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-2); border-color: var(--ink); }
.t-card .num {
  position: absolute; top: 28px; right: 32px;
  font-size: 12px; font-weight: 700; color: var(--text-3); letter-spacing: .15em;
}
.t-card .tag {
  display: inline-block; padding: 4px 10px; border-radius: 999px;
  font-size: 11px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  background: var(--green-soft); color: var(--green-deep);
  margin-bottom: 20px;
}
.t-card.alt .tag { background: rgba(255,107,44,.12); color: var(--orange-deep); }
.t-card.alt2 .tag { background: var(--paper-2); color: var(--ink); }
.t-card .ico {
  width: 56px; height: 56px; border-radius: 16px; background: var(--paper-2);
  display: flex; align-items: center; justify-content: center; color: var(--ink);
  margin-bottom: 24px;
}
.t-card.alt .ico { background: rgba(255,107,44,.12); color: var(--orange-deep); }
.t-card.alt2 .ico { background: var(--green-soft); color: var(--green-deep); }
.t-card h3 { font-size: 22px; margin-bottom: 12px; }
.t-card p { color: var(--text-2); font-size: 15px; line-height: 1.7; margin-bottom: 20px; }
.t-card ul { display: flex; flex-direction: column; gap: 8px; }
.t-card li {
  position: relative; padding-left: 22px; font-size: 14px; color: var(--text-2);
}
.t-card li::before {
  content: ""; position: absolute; left: 0; top: 8px; width: 12px; height: 12px;
  background: var(--green); border-radius: 50%;
  background-image: radial-gradient(circle, var(--white) 30%, transparent 30%);
}

/* ===== Box Types ====================================================== */
.boxes { background: var(--ink); color: var(--white); position: relative; overflow: hidden; }
.boxes::before {
  content: ""; position: absolute; right: -200px; top: -200px; width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,166,81,.18) 0%, transparent 60%);
}
.boxes .section-head h2 { color: var(--white); }
.boxes .section-head p { color: rgba(255,255,255,.7); }
.boxes .eyebrow { color: var(--green); }
.boxes .eyebrow::before { background: var(--green); }

.box-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  position: relative; z-index: 1;
}
@media (max-width: 960px) { .box-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .box-grid { grid-template-columns: 1fr; } }

.box {
  position: relative; aspect-ratio: 1/1; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--ink-2);
  transition: transform var(--t) var(--ease);
  cursor: pointer;
}
.box:hover { transform: translateY(-6px); }
.box img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--t-slow) var(--ease); }
.box:hover img { transform: scale(1.06); }
.box::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,.75) 100%);
}
.box .meta {
  position: absolute; left: 24px; right: 24px; bottom: 22px; z-index: 2;
}
.box .meta h3 { font-size: 22px; color: var(--white); margin-bottom: 4px; }
.box .meta span { font-size: 12px; color: rgba(255,255,255,.7); letter-spacing: .08em; }
.box .tag-top {
  position: absolute; top: 18px; left: 18px; z-index: 2;
  display: inline-block; padding: 5px 10px; border-radius: 999px;
  background: rgba(255,255,255,.92); color: var(--ink);
  font-size: 11px; font-weight: 600; letter-spacing: .12em;
}

/* ===== How it works =================================================== */
.flow { background: var(--paper); }
.flow-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative;
}
@media (max-width: 960px) { .flow-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .flow-grid { grid-template-columns: 1fr; } }

.flow-grid::before {
  content: ""; position: absolute; left: 8%; right: 8%; top: 28px; height: 1px;
  background: repeating-linear-gradient(to right, var(--line) 0 8px, transparent 8px 16px);
  z-index: 0;
}
@media (max-width: 960px) { .flow-grid::before { display: none; } }

.step { position: relative; z-index: 1; padding-top: 80px; }
.step .ball {
  position: absolute; top: 0; left: 0; width: 56px; height: 56px; border-radius: 50%;
  background: var(--white); border: 1.5px solid var(--ink);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 18px; color: var(--ink);
}
.step h4 { font-size: 18px; margin: 24px 0 8px; }
.step p { font-size: 14px; color: var(--text-2); line-height: 1.7; }

/* ===== Case Studies =================================================== */
.cases { background: var(--paper-2); }
.case-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
@media (max-width: 960px) { .case-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .case-grid { grid-template-columns: 1fr; } }

.case {
  position: relative; aspect-ratio: 4/3; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--ink);
  cursor: pointer;
}
.case img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--t-slow) var(--ease); }
.case:hover img { transform: scale(1.08); }
.case::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.05) 0%, rgba(0,0,0,.7) 100%);
}
.case .meta {
  position: absolute; left: 24px; right: 24px; bottom: 22px; z-index: 2; color: var(--white);
}
.case .meta h3 { font-size: 20px; }
.case .meta span { font-size: 12px; color: rgba(255,255,255,.75); letter-spacing: .1em; }
.case .badge {
  position: absolute; top: 18px; right: 18px; z-index: 2;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 10px; border-radius: 999px;
  background: rgba(0,166,81,.92); color: var(--white);
  font-size: 11px; font-weight: 600; letter-spacing: .08em;
}

/* ===== Impact / Stats ================================================= */
.impact {
  background: var(--ink); color: var(--white); position: relative; overflow: hidden;
}
.impact::before {
  content: ""; position: absolute; left: -200px; bottom: -200px; width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,166,81,.16) 0%, transparent 60%);
}
.impact .section-head h2 { color: var(--white); }
.impact .section-head p { color: rgba(255,255,255,.7); }

.stat-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; position: relative; z-index: 1;
}
@media (max-width: 960px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } }
.stat {
  padding: 36px 28px; border-radius: var(--radius-lg);
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.1);
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.stat:hover { background: rgba(255,255,255,.07); border-color: var(--green); }
.stat .v {
  font-size: clamp(36px, 4.5vw, 56px);
  font-weight: 700; letter-spacing: -.03em; line-height: 1;
  background: linear-gradient(180deg, var(--white) 0%, rgba(255,255,255,.7) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat .v sup { font-size: .42em; color: var(--green); -webkit-text-fill-color: var(--green); }
.stat .l { font-size: 13px; color: rgba(255,255,255,.65); margin-top: 12px; line-height: 1.5; }

/* ===== Scene Showcase ================================================= */
.scenes { background: var(--paper); }
.scene-grid {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 20px;
}
@media (max-width: 960px) { .scene-grid { grid-template-columns: 1fr; } }

.scene {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--ink);
}
.scene.tall { aspect-ratio: 4/5; }
.scene.wide { aspect-ratio: 4/3; }
.scene img { width: 100%; height: 100%; object-fit: cover; }
.scene .cap {
  position: absolute; left: 28px; right: 28px; bottom: 26px; z-index: 2; color: var(--white);
}
.scene .cap small {
  display: inline-block; padding: 4px 10px; border-radius: 999px;
  background: rgba(0,166,81,.92); font-size: 11px; font-weight: 600; letter-spacing: .12em;
  margin-bottom: 12px;
}
.scene .cap h3 { font-size: clamp(22px, 2.6vw, 30px); max-width: 360px; }
.scene .cap p { color: rgba(255,255,255,.85); font-size: 14px; max-width: 360px; margin-top: 6px; }
.scene::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,.65) 100%);
}
.scene-stack { display: flex; flex-direction: column; gap: 20px; }
@media (max-width: 960px) { .scene-stack { flex-direction: row; } }
@media (max-width: 560px) { .scene-stack { flex-direction: column; } }

/* ===== News =========================================================== */
.news { background: var(--paper-2); }
.news-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 24px; }
@media (max-width: 960px) { .news-grid { grid-template-columns: 1fr; } }

.news-card {
  background: var(--white); border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--line); transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
  display: flex; flex-direction: column;
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); }
.news-card .thumb { position: relative; aspect-ratio: 16/10; overflow: hidden; background: var(--paper-2); }
.news-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--t-slow) var(--ease); }
.news-card:hover .thumb img { transform: scale(1.05); }
.news-card .body { padding: 24px 24px 28px; display: flex; flex-direction: column; flex: 1; }
.news-card .meta { display: flex; align-items: center; gap: 12px; font-size: 12px; color: var(--text-3); margin-bottom: 12px; }
.news-card .meta .tag { padding: 3px 8px; border-radius: 4px; background: var(--green-soft); color: var(--green-deep); font-weight: 600; }
.news-card h3 { font-size: 19px; line-height: 1.4; margin-bottom: 10px; }
.news-card .feat h3 { font-size: 24px; }
.news-card p { color: var(--text-2); font-size: 14px; line-height: 1.6; flex: 1; }
.news-card .more {
  margin-top: 16px; display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 600; color: var(--green-deep);
}

/* ===== CTA Banner ===================================================== */
.cta-band {
  position: relative; padding: 100px 0; overflow: hidden;
  background: var(--ink); color: var(--white); text-align: center;
}
.cta-band::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(0,166,81,.2) 0%, transparent 70%);
}
.cta-band .wrap { position: relative; z-index: 1; }
.cta-band h2 {
  font-size: clamp(34px, 4.6vw, 56px);
  letter-spacing: -.02em; max-width: 800px; margin: 0 auto 20px;
  /* 自动平衡行宽，避免"标点/单字独占一行" */
  text-wrap: balance;
  word-break: keep-all;
  overflow-wrap: break-word;
}
.cta-band p {
  color: rgba(255,255,255,.7); max-width: 560px; margin: 0 auto 36px;
  font-size: clamp(15px, 1.4vw, 18px); line-height: 1.7;
}
.cta-band .actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.cta-band .note { font-size: 12px; color: rgba(255,255,255,.45); margin-top: 24px; letter-spacing: .08em; }

/* ===== Footer ========================================================= */
.footer {
  background: var(--ink-2); color: rgba(255,255,255,.7);
  padding: 80px 0 40px;
}
.footer a { color: rgba(255,255,255,.7); }
.footer a:hover { color: var(--white); }
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.4fr; gap: 48px;
  padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,.08);
}
@media (max-width: 960px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

.footer h3 { color: var(--white); font-size: 13px; letter-spacing: .18em; text-transform: uppercase; margin-bottom: 20px; }
.footer .brand { margin-bottom: 20px; }
.footer .brand img { height: 32px; filter: brightness(0) invert(1); }
.footer .brand-text strong { color: var(--white); }
.footer .brand-text span { color: rgba(255,255,255,.5); }
.footer p.tagline { color: rgba(255,255,255,.6); font-size: 14px; line-height: 1.7; max-width: 320px; }

.footer-list { display: flex; flex-direction: column; gap: 12px; }
.footer-list a { font-size: 14px; }
.footer-list .ic {
  display: inline-flex; align-items: center; justify-content: center;
  width: 16px; height: 16px; margin-right: 8px; color: var(--green);
}

.subscribe input {
  width: 100%; padding: 14px 18px; border-radius: 999px;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
  color: var(--white); font-size: 14px; margin-bottom: 10px;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.subscribe input::placeholder { color: rgba(255,255,255,.4); }
.subscribe input:focus { border-color: var(--green); background: rgba(0,166,81,.06); outline: none; }
.subscribe button { width: 100%; }
.subscribe small { display: block; font-size: 12px; color: rgba(255,255,255,.62); margin-top: 12px; line-height: 1.5; }

.legal {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px;
  padding-top: 28px; font-size: 12px; color: rgba(255,255,255,.58);
}
.legal a { color: rgba(255,255,255,.68); }
.legal .links { display: flex; gap: 18px; flex-wrap: wrap; }

/* ===== A/B Test Variants ============================================
   abtest.js 在 <head> 同步执行并设置 data-variant，
   首次绘制时就是最终状态 → 零闪烁、零 CLS
   ==================================================================== */
[data-variant="a"] .ab-b { display: none !important; }
[data-variant="b"] .ab-a { display: none !important; }

/* ===== Reveal Animation ============================================== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal[data-delay="1"] { transition-delay: .1s; }
.reveal[data-delay="2"] { transition-delay: .2s; }
.reveal[data-delay="3"] { transition-delay: .3s; }
.reveal[data-delay="4"] { transition-delay: .4s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}


/* ===== User Voices (Testimonials) =================================== */
.voices { background: var(--paper); }
.voice-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
@media (max-width: 960px) { .voice-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .voice-grid { grid-template-columns: 1fr; } }

.voice {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 32px 28px; display: flex; flex-direction: column;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease), border-color var(--t) var(--ease);
}
.voice:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); border-color: var(--ink); }
.voice .stars { display: flex; gap: 2px; color: var(--orange); font-size: 13px; margin-bottom: 16px; letter-spacing: 2px; }
.voice .quote {
  font-size: 16px; line-height: 1.75; color: var(--ink); flex: 1; margin-bottom: 24px;
}
.voice .quote::before { content: "\201C"; color: var(--green); font-size: 40px; line-height: 0; vertical-align: -0.35em; margin-right: 4px; }
.voice .who { display: flex; align-items: center; gap: 12px; padding-top: 20px; border-top: 1px solid var(--line); }
.voice .who .av {
  width: 44px; height: 44px; border-radius: 50%; overflow: hidden; background: var(--paper-2); flex-shrink: 0;
}
.voice .who .av img { width: 100%; height: 100%; object-fit: cover; }
.voice .who strong { display: block; font-size: 14px; color: var(--ink); }
.voice .who span { display: block; font-size: 12px; color: var(--text-3); margin-top: 2px; }
.voice .tag-box {
  position: absolute; top: 24px; right: 24px;
  display: inline-block; padding: 4px 10px; border-radius: 999px;
  background: var(--green-soft); color: var(--green-deep);
  font-size: 11px; font-weight: 600; letter-spacing: .06em;
}
.voice { position: relative; }
.voice .who .n { flex: 1; }
.voice .meta-count { font-size: 11px; color: var(--text-3); text-align: right; }

/* ===== City Coverage =============================================== */
.cities { background: var(--ink); color: var(--white); position: relative; overflow: hidden; }
.cities::before {
  content: ""; position: absolute; right: -160px; top: -160px; width: 560px; height: 560px;
  background: radial-gradient(circle, rgba(0,166,81,.16) 0%, transparent 60%);
}
.cities .section-head h2 { color: var(--white); }
.cities .section-head p { color: rgba(255,255,255,.7); }
.cities .eyebrow { color: var(--green); }
.cities .eyebrow::before { background: var(--green); }

.city-summary {
  display: flex; gap: 40px; flex-wrap: wrap; justify-content: center;
  margin-bottom: 48px; position: relative; z-index: 1;
}
.city-summary div { text-align: center; }
.city-summary strong {
  display: block; font-size: clamp(32px, 4vw, 48px); font-weight: 700;
  letter-spacing: -.02em; line-height: 1; color: var(--white);
}
.city-summary span { display: block; font-size: 13px; color: rgba(255,255,255,.6); margin-top: 8px; }

.city-grid {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; position: relative; z-index: 1;
}
@media (max-width: 960px) { .city-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 560px) { .city-grid { grid-template-columns: repeat(2, 1fr); } }

.city {
  padding: 22px 20px; border-radius: var(--radius);
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.1);
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
  position: relative;
}
.city:hover { background: rgba(255,255,255,.08); border-color: var(--green); transform: translateY(-2px); }
.city strong { display: block; font-size: 19px; color: var(--white); letter-spacing: -.01em; }
.city .st { display: block; font-size: 13px; color: rgba(255,255,255,.62); margin-top: 6px; }
.city .sn { display: block; font-size: 11px; color: rgba(255,255,255,.4); margin-top: 4px; letter-spacing: .06em; }
.city.hot::after {
  content: "热门"; position: absolute; top: 12px; right: 12px;
  padding: 2px 7px; border-radius: 999px;
  background: var(--orange); color: var(--white);
  font-size: 10px; font-weight: 600;
}
.city.hot { border-color: rgba(255,107,44,.4); }

/* ===== Marquee (subtle) ============================================== */
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}