/* =============================================================
   铭赞网络 · 德语网站建设
   德国设计感 · 工业极简 · 多语种建站营销页
   ============================================================= */

/* ---------- Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}
* {
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family:
    "Noto Sans SC", "Manrope", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #1a1d24;
  background: #f8fafc;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img,
svg {
  display: block;
  max-width: 100%;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
  border: 0;
  background: none;
  cursor: pointer;
  color: inherit;
}
ul,
ol {
  list-style: none;
}
:focus-visible {
  outline: 2px solid #d72638;
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Tokens ---------- */
:root {
  --c-ink: #0b0f19;
  --c-red: #d72638;
  --c-red-dark: #a41c2a;
  --c-gold: #c7a661;
  --c-bg: #f8fafc;
  --c-bg-alt: #eef1f5;
  --c-bg-dark: #0b0f19;
  --c-text: #1a1d24;
  --c-muted: #6b7280;
  --c-line: #e5e7eb;
  --c-white: #ffffff;

  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 16px;
  --shadow-sm:
    0 1px 2px rgba(11, 15, 25, 0.04), 0 1px 1px rgba(11, 15, 25, 0.03);
  --shadow: 0 10px 30px -12px rgba(11, 15, 25, 0.18);
  --shadow-lg: 0 30px 60px -20px rgba(11, 15, 25, 0.3);

  --easing: cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}
.section--alt {
  background: var(--c-bg-alt);
}
.section--dark {
  background: var(--c-bg-dark);
  color: var(--c-white);
}
.section--accent {
  background: linear-gradient(180deg, #fff 0%, #fff7f0 100%);
}

.section__head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 64px;
}
.section__head--light .section__title {
  color: #fff;
}
.section__head--light .section__desc {
  color: rgba(255, 255, 255, 0.7);
}
.section__kicker {
  display: inline-block;
  font-family: "Manrope", sans-serif;
  font-size: 12px;
  letter-spacing: 0.3em;
  font-weight: 700;
  color: var(--c-red);
  margin-bottom: 16px;
  text-transform: uppercase;
}
.section__title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--c-ink);
  margin-bottom: 16px;
}
.section__desc {
  font-size: 16px;
  color: var(--c-muted);
  line-height: 1.8;
}

/* ---------- Topbar ---------- */
.topbar {
  background: var(--c-ink);
  color: rgba(255, 255, 255, 0.78);
  font-size: 12px;
  letter-spacing: 0.02em;
  height: 36px;
  display: flex;
  align-items: center;
}
.topbar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.topbar__left {
  display: flex;
  align-items: center;
  gap: 10px;
}
.topbar__right {
  display: flex;
  align-items: center;
  gap: 22px;
}
.topbar__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.78);
  transition: color 0.25s var(--easing);
}
.topbar__link:hover {
  color: var(--c-gold);
}
.topbar__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-red);
  box-shadow: 0 0 0 3px rgba(215, 38, 56, 0.25);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 3px rgba(215, 38, 56, 0.25);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(215, 38, 56, 0.05);
  }
}

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow 0.3s var(--easing);
}
.header.is-scrolled {
  box-shadow: var(--shadow-sm);
}
.header__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 72px;
}
.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-weight: 800;
  color: var(--c-ink);
  flex: 0 0 auto;
}
.brand__name {
  font-size: 20px;
  display: inline-flex;
  align-items: flex-start;
}
.brand__reg {
  font-size: 10px;
  color: var(--c-red);
  margin-left: 2px;
  margin-top: 2px;
}
.brand__sep {
  color: var(--c-line);
  font-weight: 400;
}
.brand__biz {
  font-size: 16px;
  color: var(--c-muted);
  font-weight: 500;
}

.nav {
  flex: 1;
}
.nav__list {
  display: flex;
  gap: 4px;
  justify-content: center;
}
.nav__link {
  position: relative;
  display: inline-block;
  padding: 10px 14px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--c-ink);
  transition: color 0.25s var(--easing);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 6px;
  height: 2px;
  background: var(--c-red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--easing);
}
.nav__link:hover {
  color: var(--c-red);
}
.nav__link:hover::after,
.nav__link.is-active::after {
  transform: scaleX(1);
}

.header__cta {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  background: var(--c-ink);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: all 0.3s var(--easing);
}
.header__cta:hover {
  background: var(--c-red);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px -8px rgba(215, 38, 56, 0.55);
}

.burger {
  display: none;
}

/* ---------- Mobile menu ---------- */
.mobile-menu {
  position: fixed;
  inset: 108px 0 0 0;
  background: rgba(11, 15, 25, 0.96);
  backdrop-filter: blur(12px);
  z-index: 49;
  display: flex;
  flex-direction: column;
  padding: 24px;
  gap: 6px;
  transform: translateY(-100%);
  transition: transform 0.35s var(--easing);
  pointer-events: none;
}
.mobile-menu.is-open {
  transform: translateY(0);
  pointer-events: auto;
}
.mobile-menu a {
  color: #fff;
  font-size: 18px;
  padding: 14px 4px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: var(--c-ink);
  color: #fff;
  overflow: hidden;
  isolation: isolate;
  padding: 120px 0 100px;
}
.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(
    ellipse at center,
    #000 30%,
    transparent 75%
  );
}
.hero__glow {
  position: absolute;
  width: 800px;
  height: 800px;
  top: -200px;
  right: -200px;
  background: radial-gradient(
    circle,
    rgba(215, 38, 56, 0.25) 0%,
    transparent 60%
  );
  filter: blur(40px);
}
.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 8px 16px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.25em;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 32px;
  text-transform: uppercase;
}
.hero__eyebrow-line {
  width: 24px;
  height: 1px;
  background: var(--c-gold);
}

.hero__title {
  font-size: clamp(40px, 7vw, 88px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 32px;
  max-width: 18ch;
}
.hero__title > span {
  display: block;
  opacity: 0;
  transform: translateY(40px);
  animation: rise 1s var(--easing) forwards;
}
.hero__title > span:nth-child(1) {
  animation-delay: 0.1s;
}
.hero__title > span:nth-child(2) {
  animation-delay: 0.25s;
}
.hero__title > span:nth-child(3) {
  animation-delay: 0.4s;
}
.hero__title-accent {
  background: linear-gradient(135deg, var(--c-red) 0%, #ff5c6c 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
  display: inline-block !important;
}
.hero__title-accent::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 6px;
  height: 12px;
  background: rgba(215, 38, 56, 0.2);
  z-index: -1;
}
@keyframes rise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero__sub {
  font-size: clamp(15px, 1.4vw, 18px);
  color: rgba(255, 255, 255, 0.72);
  max-width: 60ch;
  margin-bottom: 40px;
  opacity: 0;
  animation: rise 1s var(--easing) 0.55s forwards;
}
.hero__sub strong {
  color: var(--c-gold);
  font-weight: 700;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 80px;
  opacity: 0;
  animation: rise 1s var(--easing) 0.7s forwards;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.3s var(--easing);
  white-space: nowrap;
}
.btn--primary {
  background: var(--c-red);
  color: #fff;
  box-shadow: 0 8px 20px -6px rgba(215, 38, 56, 0.55);
}
.btn--primary:hover {
  background: var(--c-red-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -8px rgba(215, 38, 56, 0.7);
}
.btn--ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.5);
}
.btn--ghost-dark {
  background: transparent;
  color: var(--c-ink);
  border: 1px solid var(--c-line);
}
.btn--ghost-dark:hover {
  background: var(--c-ink);
  color: #fff;
  border-color: var(--c-ink);
}
.btn--outline-light {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
}
.btn--outline-light:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: #fff;
}

.hero__metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.08);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.hero__metrics li {
  background: var(--c-ink);
  padding: 28px 20px;
  text-align: left;
}
.hero__metrics strong {
  display: inline-block;
  font-family: "Manrope", sans-serif;
  font-size: 44px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
  font-feature-settings: "tnum";
  margin-right: 4px;
}
.hero__metrics span {
  color: var(--c-gold);
  font-weight: 600;
  font-size: 18px;
}
.hero__metrics p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
  margin-top: 6px;
}

.hero__scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 22px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 12px;
}
.hero__scroll span {
  position: absolute;
  top: 6px;
  left: 50%;
  width: 3px;
  height: 8px;
  background: #fff;
  border-radius: 2px;
  transform: translateX(-50%);
  animation: scroll 1.8s var(--easing) infinite;
}
@keyframes scroll {
  0% {
    transform: translate(-50%, 0);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, 14px);
    opacity: 0;
  }
}

/* ---------- Grid & cards ---------- */
.grid {
  display: grid;
  gap: 24px;
}
.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}
.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}
.grid--5 {
  grid-template-columns: repeat(5, 1fr);
}

.card {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all 0.35s var(--easing);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-red) 0%, var(--c-gold) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--easing);
}
.card:hover {
  border-color: transparent;
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}
.card:hover::before {
  transform: scaleX(1);
}
.card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, #fff5f6 0%, #fde7ea 100%);
  color: var(--c-red);
  margin-bottom: 20px;
}
.card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--c-ink);
}
.card p {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.7;
}

/* ---------- Advantages ---------- */
.advantage {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  position: relative;
  transition: all 0.35s var(--easing);
  border: 1px solid transparent;
}
.advantage:hover {
  border-color: var(--c-line);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.advantage__no {
  font-family: "Manrope", sans-serif;
  font-size: 48px;
  font-weight: 800;
  line-height: 1;
  color: var(--c-red);
  margin-bottom: 16px;
  letter-spacing: -0.04em;
}
.advantage h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
}
.advantage p {
  color: var(--c-muted);
  font-size: 14.5px;
}

/* ---------- Timeline ---------- */
.timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 16px;
  counter-reset: step;
}
.timeline::before {
  content: "";
  position: absolute;
  top: 28px;
  left: 0;
  right: 0;
  height: 1px;
  background: repeating-linear-gradient(
    90deg,
    var(--c-line) 0 6px,
    transparent 6px 12px
  );
}
.timeline__item {
  position: relative;
  text-align: center;
  padding-top: 76px;
}
.timeline__dot {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--c-ink);
  color: var(--c-ink);
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s var(--easing);
}
.timeline__item:hover .timeline__dot {
  background: var(--c-red);
  color: #fff;
  border-color: var(--c-red);
  transform: translateX(-50%) scale(1.1);
}
.timeline__body h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}
.timeline__body p {
  font-size: 13.5px;
  color: var(--c-muted);
  line-height: 1.6;
}

/* ---------- Pricing ---------- */
.pricing .plan {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  position: relative;
  transition: all 0.35s var(--easing);
}
.pricing .plan:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.3);
}
.pricing .plan h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}
.plan__desc {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  margin-bottom: 28px;
  min-height: 44px;
}
.plan__price {
  font-family: "Manrope", sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--c-gold);
  margin-bottom: 24px;
  line-height: 1;
}
.plan__price > span {
  font-size: 24px;
  vertical-align: top;
  margin-right: 2px;
}
.plan__price {
  font-size: 56px;
  color: #fff;
}
.plan__price small {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  margin-left: 4px;
  font-weight: 400;
}
.plan__list {
  margin-bottom: 32px;
}
.plan__list li {
  padding: 10px 0 10px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  position: relative;
}
.plan__list li:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.plan__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 14px;
  height: 6px;
  border-left: 2px solid var(--c-gold);
  border-bottom: 2px solid var(--c-gold);
  transform: rotate(-45deg);
}
.plan--featured {
  background: linear-gradient(
    180deg,
    rgba(215, 38, 56, 0.15) 0%,
    rgba(215, 38, 56, 0.05) 100%
  );
  border-color: var(--c-red);
  transform: scale(1.03);
}
.plan--featured:hover {
  transform: scale(1.03) translateY(-4px);
}
.plan__tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--c-red);
  color: #fff;
  padding: 6px 18px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
}
.pricing__note {
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
  margin-top: 32px;
}

/* ---------- Industries ---------- */
.industries .industry {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #fff;
  padding: 22px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--c-line);
  transition: all 0.3s var(--easing);
  color: var(--c-ink);
  font-weight: 500;
}
.industries .industry:hover {
  border-color: var(--c-red);
  background: linear-gradient(135deg, #fff 0%, #fff7f7 100%);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}
.industry__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: #f3f4f6;
  color: var(--c-ink);
  flex-shrink: 0;
  transition: all 0.3s var(--easing);
}
.industries .industry:hover .industry__icon {
  background: var(--c-red);
  color: #fff;
}

/* ---------- Strength ---------- */
.strength__item {
  text-align: center;
  padding: 20px 0;
}
.strength__num {
  font-family: "Manrope", sans-serif;
  font-size: 64px;
  font-weight: 800;
  line-height: 1;
  color: var(--c-ink);
  letter-spacing: -0.04em;
  font-feature-settings: "tnum";
}
.strength__num small {
  font-size: 20px;
  color: var(--c-red);
  margin-left: 2px;
  font-weight: 600;
}
.strength__item p {
  margin-top: 8px;
  color: var(--c-muted);
  font-size: 14px;
  letter-spacing: 0.05em;
}
.certs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 60px;
  padding-top: 60px;
  border-top: 1px solid var(--c-line);
}
.cert {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 22px 16px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: #fff;
  transition: all 0.3s var(--easing);
}
.cert:hover {
  border-color: var(--c-ink);
  transform: translateY(-2px);
}
.cert span {
  font-family: "Manrope", sans-serif;
  font-size: 22px;
  font-weight: 800;
  color: var(--c-ink);
  letter-spacing: 0.04em;
}
.cert small {
  color: var(--c-muted);
  font-size: 12px;
}

/* ---------- FAQ ---------- */
.faq {
  max-width: 920px;
  margin: 0 auto;
}
.faq__item {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  margin-bottom: 12px;
  transition: all 0.3s var(--easing);
  overflow: hidden;
}
.faq__item[open] {
  border-color: var(--c-ink);
  box-shadow: var(--shadow-sm);
}
.faq__item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-ink);
  cursor: pointer;
  list-style: none;
}
.faq__item summary::-webkit-details-marker {
  display: none;
}
.faq__toggle {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  position: relative;
  transition: transform 0.3s var(--easing);
}
.faq__toggle::before,
.faq__toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--c-ink);
  transition: all 0.3s var(--easing);
}
.faq__toggle::before {
  width: 14px;
  height: 2px;
  transform: translate(-50%, -50%);
}
.faq__toggle::after {
  width: 2px;
  height: 14px;
  transform: translate(-50%, -50%);
}
.faq__item[open] .faq__toggle::after {
  opacity: 0;
}
.faq__item:hover {
  border-color: var(--c-muted);
}
.faq__a {
  padding: 0 28px 24px;
  color: var(--c-muted);
  font-size: 14.5px;
  line-height: 1.85;
}
.faq__a p {
  max-width: none;
}

/* ---------- Contact ---------- */
.section--contact {
  background: linear-gradient(180deg, #fff 0%, #fff5f5 100%);
}
.contact {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 60px;
  align-items: start;
}
.contact__list {
  margin: 40px 0 36px;
  display: grid;
  gap: 0;
}
.contact__list li {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--c-line);
  align-items: center;
}
.contact__list li:first-child {
  border-top: 1px solid var(--c-line);
}
.contact__label {
  color: var(--c-muted);
  font-size: 13px;
  letter-spacing: 0.05em;
}
.contact__value {
  font-size: 17px;
  font-weight: 600;
  color: var(--c-ink);
  transition: color 0.25s var(--easing);
}
a.contact__value:hover {
  color: var(--c-red);
}
.contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}
.contact__weibo {
  background: #e6162d;
  border-color: #e6162d;
  color: #fff;
}
.contact__weibo:hover {
  background: #c8112b;
  color: #fff;
  border-color: #c8112b;
}

.contact__qr {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  box-shadow: var(--shadow);
  position: sticky;
  top: 120px;
}
.qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.qr img {
  width: 220px;
  height: 220px;
  border-radius: 8px;
  background: #f3f4f6;
  object-fit: cover;
  border: 1px solid var(--c-line);
}
.qr span {
  font-size: 14px;
  color: var(--c-ink);
  font-weight: 500;
  letter-spacing: 0.05em;
}
.qr__note {
  font-size: 13px;
  color: var(--c-muted);
  line-height: 1.7;
  border-top: 1px dashed var(--c-line);
  padding-top: 14px;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--c-ink);
  color: rgba(255, 255, 255, 0.65);
  padding: 60px 0 24px;
  font-size: 13.5px;
}
.footer__top {
  display: grid;
  grid-template-columns: 1.4fr repeat(5, 1fr);
  gap: 32px 24px;
  margin-bottom: 40px;
}
.footer__brand .brand__name,
.footer__brand .brand__biz {
  color: #fff;
}
.footer__brand .brand__sep {
  color: rgba(255, 255, 255, 0.3);
}
.footer__brand p {
  margin-top: 12px;
  line-height: 1.8;
  font-size: 13px;
}
.footer__brand a {
  color: rgba(255, 255, 255, 0.85);
  transition: color 0.25s var(--easing);
}
.footer__brand a:hover {
  color: var(--c-gold);
}
.footer__group h4 {
  font-size: 13px;
  color: #fff;
  font-weight: 600;
  letter-spacing: 0.15em;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.footer__group a {
  display: block;
  padding: 4px 0;
  color: rgba(255, 255, 255, 0.55);
  font-size: 13px;
  transition: color 0.25s var(--easing);
}
.footer__group a:hover {
  color: var(--c-gold);
}
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 12.5px;
}
.footer__bottom a {
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.25s var(--easing);
}
.footer__bottom a:hover {
  color: var(--c-gold);
}

/* ---------- Float QR ---------- */
.float-qr {
  position: fixed;
  right: 24px;
  bottom: 32px;
  z-index: 60;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: var(--c-red);
  color: #fff;
  border-radius: 50%;
  box-shadow: 0 12px 30px -8px rgba(215, 38, 56, 0.55);
  transition: all 0.3s var(--easing);
  font-size: 12px;
  font-weight: 500;
  gap: 2px;
}
.float-qr:hover {
  transform: translateY(-4px) scale(1.05);
  background: var(--c-red-dark);
}
.float-qr span {
  line-height: 1;
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.8s var(--easing),
    transform 0.8s var(--easing);
}
.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid--5 {
    grid-template-columns: repeat(3, 1fr);
  }
  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid--4 {
    grid-template-columns: repeat(3, 1fr);
  }
  .timeline {
    grid-template-columns: repeat(4, 1fr);
  }
  .timeline::before {
    display: none;
  }
  .footer__top {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }
  .section__head {
    margin-bottom: 40px;
  }

  .topbar {
    display: none;
  }

  .header__inner {
    height: 60px;
  }
  .nav,
  .header__cta {
    display: none;
  }
  .burger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    margin-left: auto;
    padding: 8px;
  }
  .burger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--c-ink);
    border-radius: 2px;
    transition: all 0.3s var(--easing);
  }
  .burger.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .burger.is-open span:nth-child(2) {
    opacity: 0;
  }
  .burger.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  .mobile-menu {
    inset: 60px 0 0 0;
  }

  .hero {
    padding: 64px 0 80px;
  }
  .hero__title {
    font-size: clamp(34px, 9vw, 56px);
  }
  .hero__metrics {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero__metrics strong {
    font-size: 32px;
  }
  .hero__cta .btn {
    flex: 1;
    justify-content: center;
  }

  .grid--3,
  .grid--4,
  .grid--5 {
    grid-template-columns: 1fr 1fr;
  }
  .timeline {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .certs {
    grid-template-columns: repeat(2, 1fr);
  }

  .plan--featured {
    transform: none;
  }
  .plan--featured:hover {
    transform: translateY(-4px);
  }

  .contact {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .contact__qr {
    position: static;
  }

  .footer__top {
    grid-template-columns: 1fr 1fr;
  }

  .float-qr {
    width: 52px;
    height: 52px;
    right: 16px;
    bottom: 16px;
  }
  .float-qr span {
    display: none;
  }
}

@media (max-width: 480px) {
  .grid--3,
  .grid--4,
  .grid--5 {
    grid-template-columns: 1fr;
  }
  .hero__metrics {
    grid-template-columns: 1fr 1fr;
  }
  .contact__list li {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .contact__label {
    font-size: 12px;
  }
  .footer__top {
    grid-template-columns: 1fr;
  }
}