/* ==========================================================================
   福伍企服 · 企业官网
   设计系统：近白底 + 单色青，克制编辑风
   ========================================================================== */

/* ---------- 设计 token ---------- */
:root {
  /* 白天模式 */
  --bg: #f6f7f4;
  --bg-alt: #edeee9;
  --surface: #ffffff;
  --surface-soft: #fbfaf7;
  --ink: #0f1211;
  --ink-2: #3a403d;
  --ink-3: #5f6663;
  --ink-4: #6b7270;
  --line: #d5d8d1;
  --line-soft: #e0e2dc;
  --brand: #0e8274;
  --brand-ink: #ffffff;
  --brand-soft: #f0f5f2;
  --brand-line: rgba(14, 130, 116, 0.28);
  --shadow: 0 1px 2px rgba(15, 18, 17, 0.04), 0 12px 32px rgba(15, 18, 17, 0.05);
  --nav-bg: rgba(246, 247, 244, 0.82);

  /* 排版 */
  --font: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-num: "Sarasa Mono SC", "SF Mono", "JetBrains Mono", ui-monospace, Menlo,
    Consolas, monospace;

  /* 节奏 */
  --gutter: 120px;
  --radius: 2px;
  --sec-y: 112px;
}

[data-theme="dark"] {
  --bg: #0a0b0c;
  --bg-alt: #070809;
  --surface: #0d0f10;
  --surface-soft: #111415;
  --ink: #f2f4f5;
  --ink-2: #dde3e2;
  --ink-3: #8c9296;
  --ink-4: #7c8488;
  --line: #22262a;
  --line-soft: #1c2023;
  --brand: #35e0c0;
  --brand-ink: #06090a;
  --brand-soft: #0c1113;
  --brand-line: rgba(53, 224, 192, 0.32);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 16px 40px rgba(0, 0, 0, 0.32);
  --nav-bg: rgba(10, 11, 12, 0.82);
}

/* ---------- 基础 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.32s ease, color 0.32s ease;
}

h1,
h2,
h3,
h4,
p,
figure,
ul {
  margin: 0;
  padding: 0;
}

ul {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

[hidden] {
  display: none !important;
}

button {
  font: inherit;
  color: inherit;
  border: 0;
  background: none;
  cursor: pointer;
}

::selection {
  background: var(--brand);
  color: var(--brand-ink);
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
}

/* ---------- 布局容器 ---------- */
.wrap {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--sec-y);
}

.section--alt {
  background: var(--bg-alt);
}

/* ---------- 通用小标题 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 1.6px;
  color: var(--ink-4);
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  flex: none;
}

.sec-head {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 52px;
}

.sec-title {
  font-size: clamp(24px, 3.05vw, 44px);
  font-weight: 300;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.sec-desc {
  max-width: 700px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-3);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 30px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  transition: transform 0.18s ease, background-color 0.2s ease,
    border-color 0.2s ease, color 0.2s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  background: var(--brand);
  color: var(--brand-ink);
}

.btn--primary:hover {
  filter: brightness(1.08);
}

.btn--ghost {
  border: 1px solid var(--line);
  color: var(--ink-2);
  background: transparent;
}

.btn--ghost:hover {
  border-color: var(--brand);
  color: var(--brand);
}

/* ==========================================================================
   导航
   ========================================================================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, background-color 0.32s ease;
}

.nav.is-scrolled {
  border-bottom-color: var(--line-soft);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  height: 84px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.brand__mark {
  width: 26px;
  height: 26px;
  flex: none;
  color: var(--brand);
}

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.brand__name {
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.2;
  color: var(--ink);
}

.brand__latin {
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: 1.2px;
  line-height: 1.2;
  color: var(--ink-4);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav__link {
  position: relative;
  font-size: 14px;
  color: var(--ink-3);
  transition: color 0.2s ease;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 1px;
  background: var(--brand);
  transition: width 0.24s ease;
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--ink);
}

.nav__link:hover::after,
.nav__link.is-active::after {
  width: 100%;
}

.nav__right {
  display: flex;
  align-items: center;
  gap: 20px;
  flex: none;
}

.nav__phone {
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.4px;
  color: var(--ink-3);
}

.nav__phone:hover {
  color: var(--brand);
}

.nav__cta {
  padding: 11px 22px;
  font-size: 14px;
}

/* 主题切换 */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink-3);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.theme-toggle:hover {
  color: var(--brand);
  border-color: var(--brand);
}

.theme-toggle svg {
  width: 16px;
  height: 16px;
}

.theme-toggle .icon-sun {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-sun {
  display: block;
}

[data-theme="dark"] .theme-toggle .icon-moon {
  display: none;
}

/* 汉堡 */
.nav__burger {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  margin-right: -8px;
  color: var(--ink-2);
}

.nav__burger svg {
  width: 20px;
  height: 20px;
}

/* 手机抽屉 */
.drawer {
  display: none;
  border-top: 1px solid var(--line-soft);
  background: var(--bg);
  overflow: hidden;
}

.drawer__list {
  padding: 8px 20px 20px;
}

.drawer__list a {
  display: block;
  padding: 14px 0;
  font-size: 15px;
  color: var(--ink-2);
  border-bottom: 1px solid var(--line-soft);
}

.drawer__list a:last-child {
  border-bottom: 0;
}

.drawer__foot {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 0 20px 24px;
}

.drawer__phone {
  font-family: var(--font-num);
  font-size: 15px;
  color: var(--ink-3);
  letter-spacing: 0.5px;
}

/* ==========================================================================
   首屏
   ========================================================================== */
.hero {
  padding-top: 86px;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 60px;
  align-items: start;
}

.hero__copy {
  display: flex;
  flex-direction: column;
  gap: 30px;
  max-width: 740px;
}

.hero__title {
  font-size: clamp(34px, 5.15vw, 74px);
  font-weight: 200;
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.hero__title em {
  font-style: normal;
  color: var(--brand);
}

.hero__sub {
  max-width: 560px;
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink-3);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding-top: 4px;
}

/* 数据列 */
.stats {
  display: flex;
  flex-direction: column;
  padding-top: 8px;
}

.stats__label {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 1.4px;
  color: var(--ink-4);
  margin-bottom: 8px;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 0;
  border-top: 1px solid var(--line-soft);
}

.stat__value {
  font-family: var(--font-num);
  font-size: 36px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.5px;
  color: var(--ink);
}

.stat__value--brand {
  color: var(--brand);
}

.stat__value .unit {
  margin-left: 3px;
  font-size: 0.62em;
  font-weight: 500;
}

[data-theme="dark"] .cta {
  background: #101415;
}

.stat__label {
  font-size: 12px;
  color: var(--ink-4);
}

/* 首屏图像带 */
.hero__media {
  margin-top: 56px;
}

.hero__figure {
  position: relative;
  overflow: hidden;
  border-radius: 3px;
  background: var(--line-soft);
  aspect-ratio: 1400 / 440;
}

/* 轮播舞台 */
.hero__track {
  position: absolute;
  inset: 0;
}

.hero__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.9s ease;
}

.hero__slide.is-active {
  opacity: 1;
}

.hero__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 16%;
  transform: scale(1.045);
  transition: transform 7.5s linear;
}

.hero__slide.is-active img {
  transform: scale(1);
}

.hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: linear-gradient(
    100deg,
    rgba(15, 18, 17, 0.34) 0%,
    rgba(15, 18, 17, 0.06) 46%,
    rgba(15, 18, 17, 0.22) 100%
  );
}

[data-theme="dark"] .hero__figure::after {
  background: linear-gradient(
    100deg,
    rgba(0, 0, 0, 0.6) 0%,
    rgba(0, 0, 0, 0.25) 46%,
    rgba(0, 0, 0, 0.5) 100%
  );
}

/* 轮播指示条 */
.hero__dots {
  position: absolute;
  left: 20px;
  bottom: 14px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 4px;
}

.hero__dot {
  position: relative;
  width: 22px;
  height: 22px;
  padding: 0;
  display: block;
}

.hero__dot::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 22px;
  height: 2px;
  margin-top: -1px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.5);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.45);
  transform-origin: left center;
  transition: background-color 0.28s ease, transform 0.28s ease;
}

.hero__dot:hover::after {
  background: rgba(255, 255, 255, 0.72);
}

.hero__dot.is-active::after {
  background: #ffffff;
  transform: scaleX(1.28);
}

.hero__caption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-top: 14px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--ink-4);
}

.hero__caption span:first-child {
  transition: opacity 0.24s ease;
}

.hero__caption span:last-child {
  color: var(--ink-4);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* ==========================================================================
   痛点对比
   ========================================================================== */
.compare {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding-inline: 32px;
  background: transparent;
}

.compare__head,
.compare__row {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px;
  align-items: center;
}

.compare__head {
  padding-block: 18px;
  border-bottom: 1px solid var(--line);
}

.compare__head span {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 1.4px;
  color: var(--ink-3);
}

.compare__head span:last-child {
  color: var(--brand);
}

.compare__row {
  padding-block: 24px;
  border-bottom: 1px solid var(--line-soft);
}

.compare__row:last-child {
  border-bottom: 0;
}

.compare__dim {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-3);
}

.compare__old {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-3);
}

.compare__new {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.compare__note {
  margin-top: 20px;
  font-size: 13px;
  color: var(--ink-4);
}

/* ==========================================================================
   能力卡
   ========================================================================== */
.cards-3,
.cards-2,
.cards-4 {
  display: grid;
  gap: 20px;
}

.cards-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cards-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 20px;
}

.cards-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.cap {
  display: flex;
  flex-direction: column;
  gap: 26px;
  padding: 30px;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  transition: border-color 0.24s ease, transform 0.24s ease,
    box-shadow 0.24s ease;
}

.cap:hover {
  border-color: var(--line);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.cap--accent {
  background: var(--brand-soft);
  border-color: var(--brand-line);
}

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

.cap__icon {
  width: 22px;
  height: 22px;
  color: var(--brand);
  flex: none;
}

.cap__no {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--line);
}

[data-theme="dark"] .cap__no {
  color: var(--ink-4);
}

.cap--accent .cap__no {
  color: var(--brand);
  opacity: 0.6;
}

.cap__body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.cap__title {
  font-size: 20px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--ink);
}

.cap__desc {
  font-size: 14px;
  line-height: 1.78;
  color: var(--ink-3);
}

.cap--accent .cap__desc {
  color: var(--ink-3);
}

.cap__meta {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.8px;
  color: var(--brand);
}

/* ==========================================================================
   流程
   ========================================================================== */
.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 40px;
  border-top: 1px solid var(--line);
  padding-top: 30px;
}

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

.step__no {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 1.2px;
  color: var(--brand);
}

.step__title {
  font-size: 19px;
  font-weight: 500;
  color: var(--ink);
}

.step__desc {
  font-size: 13px;
  line-height: 1.85;
  color: var(--ink-3);
}

/* ==========================================================================
   合规保障
   ========================================================================== */
.trust__grid {
  display: grid;
  grid-template-columns: 480px minmax(0, 1fr);
  gap: 60px;
  align-items: start;
}

.trust__copy {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.trust__title {
  font-size: clamp(24px, 2.78vw, 40px);
  font-weight: 200;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.trust__desc {
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-3);
}

.trust__list {
  border-top: 1px solid var(--line);
}

.trust__item {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 24px;
  align-items: baseline;
  padding-block: 22px;
  border-bottom: 1px solid var(--line-soft);
}

.trust__name {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
}

.trust__text {
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-3);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 48px;
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

.metric__value {
  font-family: var(--font-num);
  font-size: clamp(32px, 3.05vw, 44px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.5px;
  color: var(--ink);
}

.metric__value--brand {
  color: var(--brand);
}

.metric__label {
  margin-top: 10px;
  font-size: 12px;
  color: var(--ink-4);
}

/* ==========================================================================
   行业场景
   ========================================================================== */
.industry {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.24s ease, background-color 0.24s ease;
}

.industry:hover {
  border-color: var(--brand-line);
}

.industry__name {
  font-size: 17px;
  font-weight: 500;
  color: var(--ink);
}

.industry__desc {
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-3);
  flex: 1;
}

.industry__tag {
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: 0.8px;
  color: var(--ink-4);
}

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq {
  border-top: 1px solid var(--line);
}

.faq__item {
  border-bottom: 1px solid var(--line-soft);
}

.faq__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
  padding-block: 26px;
  text-align: left;
  font-size: 16px;
  font-weight: 500;
  color: var(--ink-2);
  transition: color 0.2s ease;
}

.faq__q:hover {
  color: var(--brand);
}

.faq__icon {
  position: relative;
  width: 14px;
  height: 14px;
  flex: none;
  color: var(--ink-3);
}

.faq__icon::before,
.faq__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: currentColor;
  transform: translate(-50%, -50%);
  transition: transform 0.26s ease, opacity 0.26s ease;
}

.faq__icon::before {
  width: 14px;
  height: 1.2px;
}

.faq__icon::after {
  width: 1.2px;
  height: 14px;
}

.faq__item.is-open .faq__icon {
  color: var(--brand);
}

.faq__item.is-open .faq__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.faq__a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease;
}

.faq__item.is-open .faq__a {
  grid-template-rows: 1fr;
}

.faq__a-inner {
  overflow: hidden;
}

.faq__a p {
  max-width: 860px;
  padding-bottom: 26px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--ink-3);
}

/* ==========================================================================
   企业新闻
   ========================================================================== */
.news__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 48px;
}

.news__head .sec-head {
  margin-bottom: 0;
}

.news__more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: none;
  padding-bottom: 5px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 1.2px;
  color: var(--ink-3);
  border-bottom: 1px solid var(--line);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.news__more svg {
  width: 14px;
  height: 14px;
  transition: transform 0.24s ease;
}

.news__more:hover {
  color: var(--brand);
  border-color: var(--brand);
}

.news__more:hover svg {
  transform: translateX(3px);
}

.news-list {
  border-top: 1px solid var(--line);
}

.news-item {
  display: grid;
  grid-template-columns: 104px 92px minmax(0, 1fr) 22px;
  gap: 24px;
  align-items: center;
  padding-block: 22px;
  border-bottom: 1px solid var(--line-soft);
}

.news-item__date {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.6px;
  color: var(--ink-4);
  font-variant-numeric: tabular-nums;
}

.news-item__tag {
  justify-self: start;
  padding: 2px 9px;
  font-size: 11px;
  line-height: 1.6;
  color: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: 2px;
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.news-item__title {
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink-2);
  transition: color 0.2s ease;
}

.news-item__arrow {
  font-family: var(--font-num);
  font-size: 14px;
  color: var(--line);
  text-align: right;
  transition: color 0.2s ease, transform 0.24s ease;
}

.news-item:hover .news-item__title {
  color: var(--brand);
}

.news-item:hover .news-item__tag {
  color: var(--brand);
  border-color: var(--brand-line);
}

.news-item:hover .news-item__arrow {
  color: var(--brand);
  transform: translateX(3px);
}

.news-empty {
  padding-block: 40px;
  font-size: 14px;
  color: var(--ink-4);
}

/* 新闻列表页 */
.page-head {
  padding-top: 72px;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-title {
  font-size: clamp(30px, 4.2vw, 56px);
  font-weight: 200;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-desc {
  max-width: 620px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-3);
}

.news-page {
  padding-bottom: var(--sec-y);
}

.news-page .news-list {
  margin-top: 8px;
}

.news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.chip {
  padding: 6px 14px;
  font-size: 12px;
  line-height: 1.4;
  color: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: 2px;
  transition: color 0.2s ease, border-color 0.2s ease,
    background-color 0.2s ease;
}

.chip:hover {
  color: var(--brand);
  border-color: var(--brand-line);
}

.chip.is-active {
  color: var(--brand);
  border-color: var(--brand);
  background: var(--brand-soft);
}

/* 新闻详情 */
.article {
  max-width: 780px;
  padding-top: 56px;
}

.article__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 1.2px;
  color: var(--ink-4);
  transition: color 0.2s ease;
}

.article__back:hover {
  color: var(--brand);
}

.article__meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 30px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--ink-4);
}

.article__title {
  margin-top: 16px;
  font-size: clamp(23px, 2.9vw, 36px);
  font-weight: 300;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.article__lead {
  margin-top: 22px;
  padding-left: 16px;
  border-left: 2px solid var(--brand-line);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-3);
}

.article__body {
  margin-top: 34px;
  padding-top: 30px;
  border-top: 1px solid var(--line-soft);
}

.article__body p {
  margin-bottom: 20px;
  font-size: 15px;
  line-height: 1.95;
  color: var(--ink-2);
}

.article__body p:last-child {
  margin-bottom: 0;
}

.article__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--ink-4);
}

.article__foot a {
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--brand);
}

/* ==========================================================================
   转化区
   ========================================================================== */
.cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 56px;
  align-items: center;
  padding: 56px;
  background: var(--surface);
  border: 1px solid var(--brand-line);
  border-radius: 3px;
  box-shadow: var(--shadow);
}

.cta__copy {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.cta__title {
  font-size: clamp(26px, 2.64vw, 38px);
  font-weight: 200;
  line-height: 1.42;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.cta__desc {
  max-width: 520px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-3);
}

.form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
  gap: 12px;
  padding-top: 8px;
}

.field {
  display: flex;
  align-items: center;
  height: 48px;
  padding-inline: 16px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.field:focus-within {
  border-color: var(--brand);
  background: var(--surface);
}

.field input {
  width: 100%;
  border: 0;
  background: none;
  font: inherit;
  font-size: 13px;
  color: var(--ink);
  outline: none;
}

.field input::placeholder {
  color: var(--ink-4);
  opacity: 1;
}

.form .btn {
  height: 48px;
  padding-inline: 26px;
}

.form__hint {
  grid-column: 1 / -1;
  font-size: 11px;
  line-height: 1.7;
  color: var(--ink-4);
}

.form__hint.is-done {
  color: var(--brand);
}

/* 二维码列 */
.qr {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.qr__label {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 1.2px;
  color: var(--ink-4);
}

.qr__row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.qr__item {
  display: flex;
  flex-direction: column;
  gap: 9px;
  min-width: 0;
}

.qr__box {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1 / 1;
  background: var(--brand-soft);
  border: 1px dashed var(--brand-line);
  border-radius: var(--radius);
  font-family: var(--font-num);
  font-size: 9px;
  letter-spacing: 0.6px;
  color: var(--brand);
  opacity: 0.72;
  text-align: center;
  padding: 4px;
  line-height: 1.4;
}

.qr__name {
  display: flex;
  flex-direction: column;
  gap: 1px;
  font-size: 11px;
  line-height: 1.45;
  color: var(--ink-2);
}

.qr__type {
  font-size: 10px;
  color: var(--ink-4);
}

/* ==========================================================================
   页脚
   ========================================================================== */
.footer {
  padding-top: 72px;
  padding-bottom: 36px;
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
}

.footer__top {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 60px;
  align-items: start;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer__name {
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
}

.footer__tagline {
  font-size: 12px;
  line-height: 1.85;
  color: var(--ink-3);
}

.footer__contact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 4px;
}

.footer__contact a {
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.5px;
  color: var(--ink-3);
  transition: color 0.2s ease;
}

.footer__contact a:hover {
  color: var(--brand);
}

.footer__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, auto));
  justify-content: end;
  gap: 72px;
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.footer__col h4 {
  font-family: var(--font-num);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 1.4px;
  color: var(--ink-4);
}

.footer__col a {
  font-size: 13px;
  color: var(--ink-3);
  transition: color 0.2s ease;
}

.footer__col a:hover {
  color: var(--brand);
}

.footer__giant {
  margin-top: 40px;
  font-size: clamp(64px, 11.6vw, 168px);
  font-weight: 200;
  line-height: 1.05;
  letter-spacing: 0.03em;
  color: var(--line);
  user-select: none;
  white-space: nowrap;
  overflow: hidden;
}

[data-theme="dark"] .footer__giant {
  color: var(--line);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.6px;
  color: var(--ink-4);
}

.footer__bottom a {
  color: var(--ink-4);
}

.footer__bottom a:hover {
  color: var(--brand);
}

/* ==========================================================================
   滚动入场
   ========================================================================== */
/* 默认可见；仅在 JS 就绪时才做入场动画，避免脚本失败导致正文消失 */
.reveal {
  opacity: 1;
  transform: none;
}

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.js .reveal.is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ==========================================================================
   断点：1200 以下
   ========================================================================== */
@media (max-width: 1199px) {
  :root {
    --gutter: 40px;
    --sec-y: 88px;
  }

  .nav__links {
    gap: 24px;
  }

  .nav__phone {
    display: none;
  }

  .hero__grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 40px;
  }

  .hero__title {
    font-size: clamp(32px, 4.6vw, 56px);
  }

  .cards-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px;
  }

  .trust__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
  }

  .trust__copy {
    max-width: 620px;
  }

  .cta {
    grid-template-columns: minmax(0, 1fr);
    padding: 40px;
  }

  .qr__row {
    max-width: 380px;
  }

  .footer__top {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
  }

  .footer__cols {
    justify-content: start;
    gap: 56px;
  }

  .news-item {
    grid-template-columns: 92px 84px minmax(0, 1fr) 20px;
    gap: 18px;
  }
}

/* ==========================================================================
   断点：900 以下（能力卡转两列，导航收汉堡）
   ========================================================================== */
@media (max-width: 899px) {
  .nav__links,
  .nav__right .btn {
    display: none;
  }

  .nav__burger {
    display: inline-flex;
  }

  .nav__inner {
    height: 64px;
  }

  .drawer.is-open {
    display: block;
  }

  .cards-3,
  .cards-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .form {
    grid-template-columns: minmax(0, 1fr);
  }

  .form .btn {
    width: 100%;
  }

  .compare {
    padding-inline: 20px;
  }

  .compare__head {
    display: none;
  }

  .compare__row {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
    padding-block: 22px;
  }

  .compare__dim {
    font-size: 14px;
  }
}

/* ==========================================================================
   断点：768 以下（单栏）
   ========================================================================== */
@media (max-width: 767px) {
  :root {
    --gutter: 20px;
    --sec-y: 60px;
  }

  body {
    font-size: 14px;
  }

  .hero {
    padding-top: 32px;
  }

  .hero__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .hero__copy {
    gap: 20px;
  }

  .hero__title {
    font-size: clamp(28px, 8.6vw, 34px);
    line-height: 1.36;
  }

  .hero__sub {
    font-size: 14px;
    line-height: 1.8;
  }

  .hero__actions {
    flex-direction: column;
    gap: 10px;
  }

  .hero__actions .btn {
    width: 100%;
    height: 46px;
    padding-block: 0;
    font-size: 14px;
  }

  .stats {
    padding-top: 0;
    border-top: 1px solid var(--line-soft);
  }

  .stats__label {
    margin-top: 16px;
  }

  .stat {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    gap: 16px;
  }

  .stat__value {
    font-size: 22px;
  }

  .stat__label {
    text-align: right;
  }

  .hero__media {
    margin-top: 0;
  }

  .hero__figure {
    aspect-ratio: 4 / 3;
  }

  .hero__figure img {
    object-position: 64% center;
  }

  .hero__caption {
    font-size: 10px;
  }

  .sec-head {
    margin-bottom: 32px;
    gap: 12px;
  }

  .sec-desc {
    font-size: 14px;
  }

  .cards-3,
  .cards-2,
  .cards-4,
  .steps,
  .metrics {
    grid-template-columns: minmax(0, 1fr);
  }

  .cards-2 {
    margin-top: 10px;
  }

  .cap {
    padding: 20px;
    gap: 18px;
  }

  .cap__title {
    font-size: 17px;
  }

  .cap__desc {
    font-size: 13px;
  }

  .steps {
    gap: 0;
    padding-top: 4px;
  }

  .step {
    padding-block: 16px;
    border-bottom: 1px solid var(--line-soft);
  }

  .step:last-child {
    border-bottom: 0;
  }

  .trust__item {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    padding-block: 16px;
  }

  .metrics {
    gap: 24px;
    margin-top: 40px;
    padding-top: 24px;
  }

  .metric {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
  }

  .metric__value {
    font-size: 26px;
  }

  .metric__label {
    margin-top: 0;
    text-align: right;
  }

  .industry {
    padding: 18px;
  }

  .faq__q {
    padding-block: 18px;
    font-size: 14px;
    gap: 16px;
  }

  .faq__a p {
    padding-bottom: 18px;
    font-size: 13px;
  }

  .cta {
    padding: 24px;
    gap: 28px;
  }

  .cta__title {
    font-size: 22px;
  }

  .qr__row {
    gap: 12px;
    max-width: none;
  }

  .footer {
    padding-top: 40px;
    padding-bottom: 28px;
  }

  .footer__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
    justify-content: start;
  }

  .footer__giant {
    font-size: 22vw;
    margin-top: 28px;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .hero__dots {
    left: 14px;
    bottom: 10px;
    gap: 2px;
  }

  .hero__dot {
    width: 18px;
    height: 20px;
  }

  .hero__dot::after {
    width: 18px;
  }

  .news__head {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    margin-bottom: 28px;
  }

  .news-item {
    grid-template-areas: "date tag . arrow" "title title title title";
    grid-template-columns: auto auto minmax(0, 1fr) 18px;
    gap: 10px 12px;
    padding-block: 18px;
  }

  .news-item__date {
    grid-area: date;
  }

  .news-item__tag {
    grid-area: tag;
  }

  .news-item__title {
    grid-area: title;
    font-size: 15px;
  }

  .news-item__arrow {
    grid-area: arrow;
  }

  .page-head {
    padding-top: 40px;
    padding-bottom: 26px;
    gap: 14px;
  }

  .news-filter {
    margin-top: 20px;
    gap: 6px;
  }

  .article {
    padding-top: 34px;
  }

  .article__meta {
    margin-top: 20px;
  }

  .article__lead {
    font-size: 14px;
    margin-top: 18px;
  }

  .article__body {
    margin-top: 26px;
    padding-top: 24px;
  }

  .article__body p {
    font-size: 14px;
    line-height: 1.9;
  }

  .article__foot {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    margin-top: 34px;
  }
}