/* ============================================================
   夏言 XIAYAN · 护肤品行业官网（新中式草本 · 夏日焕活）
   设计系统 / 共享样式
   ============================================================ */

/* ---------- 设计变量 ---------- */
:root {
  /* 色彩：参考图 —— 深棕页头 + 米白纸纹 + 青瓷绿 + 暖金 */
  --c-paper: #f4efe4;          /* 米白纸底 */
  --c-paper-2: #ede6d6;        /* 略深的纸底 */
  --c-surface: #ffffff;        /* 卡片白 */
  --c-ink: #2d261d;            /* 主墨色 */
  --c-ink-soft: #6a5f4e;       /* 次级文字 */
  --c-ink-faint: #978b73;      /* 弱文字 */
  --c-brand: #4c6b50;          /* 青瓷绿深 */
  --c-brand-deep: #34503c;     /* 青瓷绿更深的草本绿 */
  --c-brand-soft: #acd0b0;     /* 青瓷绿浅（瓶身） */
  --c-brand-pale: #d6e8d6;     /* 青瓷绿极浅 */
  --c-brown: #3a2a1b;          /* 深棕页头 */
  --c-brown-2: #553d28;        /* 斜切暖棕 */
  --c-brown-soft: #7a5a3c;     /* 暖棕浅 */
  --c-gold: #c09a58;           /* 暖金点缀 */
  --c-gold-soft: #e8d9b8;      /* 金色浅底 */
  --c-line: #ddd3bf;           /* 描边 */
  --c-danger: #b5574e;

  /* 字体 */
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  --font-serif: "Songti SC", "SimSun", "Noto Serif CJK SC", "Noto Serif SC", serif;
  --font-brush: "STKaiti", "KaiTi", "Kaiti SC", "BiauKai", "Noto Serif CJK SC", serif;

  /* 尺寸 */
  --container: 1200px;
  --header-h: 78px;
  --topbar-h: 40px;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 10px rgba(58, 42, 27, 0.07);
  --shadow-md: 0 14px 36px rgba(58, 42, 27, 0.13);
  --shadow-lg: 0 26px 64px rgba(58, 42, 27, 0.18);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 基础重置 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

[hidden] {
  display: none !important;
}

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-ink);
  background-color: var(--c-paper);
  background-image:
    radial-gradient(circle at 12% 18%, rgba(172, 208, 176, 0.14) 0, transparent 28%),
    radial-gradient(circle at 88% 8%, rgba(192, 154, 88, 0.12) 0, transparent 26%),
    radial-gradient(circle at 70% 82%, rgba(58, 42, 27, 0.05) 0, transparent 30%),
    repeating-linear-gradient(0deg, rgba(58, 42, 27, 0.012) 0, rgba(58, 42, 27, 0.012) 1px, transparent 1px, transparent 5px);
  -webkit-font-smoothing: antialiased;
}

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

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

ul,
ol {
  list-style: none;
}

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

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

/* ---------- 通用布局 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section--tint {
  background:
    linear-gradient(180deg, rgba(172, 208, 176, 0.12), rgba(172, 208, 176, 0.02)),
    var(--c-paper-2);
}

.section-head {
  max-width: 640px;
  margin-bottom: 48px;
}

.section-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-eyebrow {
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--c-brown-soft);
  margin-bottom: 12px;
}

.section-eyebrow::before {
  content: "◆ ";
  color: var(--c-gold);
}

.section-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(26px, 3.2vw, 40px);
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--c-ink);
}

.section-title em {
  color: var(--c-brand-deep);
  font-style: normal;
}

.section-desc {
  margin-top: 14px;
  color: var(--c-ink-soft);
  font-size: 16px;
}

.section-actions {
  margin-top: 40px;
  text-align: center;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: 999px;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease),
    background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.btn svg {
  width: 18px;
  height: 18px;
  transition: transform 0.3s var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

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

.btn--primary {
  background: var(--c-brown-2);
  color: #f8f1e2;
  box-shadow: 0 8px 20px rgba(58, 42, 27, 0.24);
}

.btn--primary:hover {
  background: var(--c-brown);
  box-shadow: 0 12px 28px rgba(58, 42, 27, 0.3);
}

.btn--gold {
  background: linear-gradient(135deg, #d8b36d, var(--c-gold));
  color: #3a2a1b;
  box-shadow: 0 8px 20px rgba(192, 154, 88, 0.3);
}

.btn--outline {
  border: 1.5px solid var(--c-brand);
  color: var(--c-brand-deep);
  background: transparent;
}

.btn--outline:hover {
  background: var(--c-brand-soft);
  border-color: var(--c-brand-deep);
}

.btn--ghost {
  border: 1.5px solid rgba(248, 241, 226, 0.55);
  color: #f8f1e2;
  background: transparent;
}

.btn--ghost:hover {
  background: rgba(248, 241, 226, 0.14);
  border-color: #f8f1e2;
}

.btn--sm {
  padding: 9px 18px;
  font-size: 14px;
}

/* ---------- 顶部信息条 ---------- */
.topbar {
  background: var(--c-brown);
  color: #d8c9a8;
  font-size: 13px;
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--topbar-h);
}

.topbar__left {
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.06em;
}

.topbar__left svg {
  width: 15px;
  height: 15px;
  fill: var(--c-gold);
}

.topbar__hotline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.topbar__hotline b {
  font-size: 16px;
  font-family: var(--font-serif);
  color: #f2e7cb;
  letter-spacing: 0.06em;
}

/* ---------- 顶部导航 ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--c-brown);
  transition: box-shadow 0.3s var(--ease);
}

.header.is-scrolled {
  box-shadow: 0 8px 26px rgba(20, 14, 8, 0.35);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #f2e7cb;
}

.brand__mark {
  width: 42px;
  height: 42px;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand__name {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #f2e7cb;
}

.brand__sub {
  font-size: 10px;
  letter-spacing: 0.34em;
  color: var(--c-gold-soft);
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav a {
  padding: 8px 14px;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: #e7dabb;
  border-radius: 8px;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}

.nav a:hover {
  color: #fff;
  background: rgba(248, 241, 226, 0.1);
}

.nav a.is-active {
  color: #fff;
  font-weight: 600;
}

.nav a.is-active::after {
  content: "";
  display: block;
  height: 2px;
  margin-top: 4px;
  border-radius: 2px;
  background: var(--c-gold);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header__actions .btn--sm {
  color: var(--c-brown);
  background: linear-gradient(135deg, #d8b36d, var(--c-gold));
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border: 1px solid rgba(248, 241, 226, 0.35);
  border-radius: 10px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 22px;
  background: #f2e7cb;
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- 页脚 ---------- */
.footer {
  background: var(--c-brown);
  color: #cdbfa2;
  padding-top: 72px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 44px;
  padding-bottom: 52px;
  border-bottom: 1px solid rgba(232, 217, 184, 0.16);
}

.footer .brand__name {
  color: #f2e7cb;
}

.footer__intro {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.9;
  color: #b6a98c;
}

.footer__socials {
  display: flex;
  gap: 12px;
  margin-top: 22px;
}

.footer__socials a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(232, 217, 184, 0.28);
  border-radius: 50%;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease);
}

.footer__socials a:hover {
  background: rgba(232, 217, 184, 0.14);
  transform: translateY(-3px);
}

.footer__socials svg {
  width: 20px;
  height: 20px;
  fill: #d8c9a8;
}

.footer__col-title {
  font-family: var(--font-serif);
  font-size: 17px;
  color: #f2e7cb;
  margin-bottom: 18px;
  letter-spacing: 0.08em;
}

.footer__grid li {
  margin-bottom: 11px;
}

.footer__grid li a {
  font-size: 14px;
  color: #b6a98c;
  transition: color 0.25s var(--ease);
}

.footer__grid li a:hover {
  color: #f2e7cb;
}

.footer__hotline {
  font-size: 14px;
  color: #b6a98c;
}

.footer__hotline span {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  color: #9a8c6f;
}

.footer__hotline b {
  font-family: var(--font-serif);
  font-size: 24px;
  letter-spacing: 0.08em;
  color: #f2e7cb;
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 24px 0;
  font-size: 12.5px;
  color: #9a8c6f;
}

.footer__bottom a:hover {
  color: #f2e7cb;
}

/* ============================================================
   首页：Hero —— 夏日新品（参考图主视觉）
   ============================================================ */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 80% 12%, rgba(214, 232, 214, 0.5) 0, transparent 34%),
    radial-gradient(circle at 8% 70%, rgba(192, 154, 88, 0.12) 0, transparent 30%),
    var(--c-paper);
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  align-items: center;
  gap: 48px;
  min-height: 600px;
  padding-top: 56px;
  padding-bottom: 96px;
}

/* 斜切棕色色块（参考图右下角） */
.hero__wedge {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 52%;
  height: 220px;
  background: var(--c-brown-2);
  clip-path: polygon(28% 0, 100% 0, 100% 100%, 0 100%);
  opacity: 0.12;
  pointer-events: none;
}

.hero__wedge--line {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 52%;
  height: 220px;
  background: linear-gradient(135deg, rgba(192, 154, 88, 0.35), rgba(192, 154, 88, 0));
  clip-path: polygon(28% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px;
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.22em;
  color: var(--c-brand-deep);
  background: var(--c-brand-pale);
  border-left: 3px solid var(--c-brand);
  border-radius: 0 999px 999px 0;
}

.hero__title {
  margin-top: 22px;
  font-family: var(--font-serif);
  font-size: clamp(34px, 4.6vw, 60px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.02em;
}

.hero__title small {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-serif);
  font-size: clamp(16px, 2vw, 22px);
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--c-brown-soft);
}

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

.hero__subtitle {
  margin-top: 20px;
  max-width: 480px;
  color: var(--c-ink-soft);
  font-size: 16px;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 30px;
  color: var(--c-ink-soft);
  font-size: 13.5px;
}

.hero__meta li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero__meta svg {
  width: 16px;
  height: 16px;
  fill: var(--c-brand);
}

/* 右侧视觉：青瓷绿瓶群 + 书法大字「夏」 */
.hero__visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 480px;
}

.hero__visual::before {
  content: "";
  position: absolute;
  inset: 6% 8%;
  border-radius: 50%;
  background:
    radial-gradient(circle, var(--c-brand-pale) 0, rgba(214, 232, 214, 0.4) 55%, transparent 72%);
  filter: blur(2px);
}

.hero__calligraph {
  position: absolute;
  top: 2%;
  left: 2%;
  font-family: var(--font-brush);
  font-size: clamp(120px, 15vw, 190px);
  line-height: 1;
  color: var(--c-brand-deep);
  opacity: 0.9;
  filter: drop-shadow(0 6px 14px rgba(52, 80, 60, 0.18));
  z-index: 1;
}

.hero__calligraph--shadow {
  left: 7%;
  top: 7%;
  color: rgba(192, 154, 88, 0.4);
  filter: none;
  z-index: 0;
}

.hero__bottles {
  position: relative;
  z-index: 2;
  width: min(440px, 100%);
}

.hero__scene {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero__scene-title {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-brown);
  margin-bottom: 4px;
}

.hero__scene-en {
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--c-brand-soft);
}

.hero__scene-en::before,
.hero__scene-en::after {
  content: "——";
  color: var(--c-gold);
}

/* 滚动浮现 */
.ingredient-art__caption {
  margin-top: 18px;
  text-align: center;
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--c-ink-faint);
}

/* ============================================================
   首页：品牌格言条
   ============================================================ */
.motto {
  padding: 46px 0;
  background: var(--c-brown);
  color: #e7dabb;
}

.motto__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 18px 34px;
  text-align: center;
}

.motto__item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 15px;
  letter-spacing: 0.1em;
}

.motto__item svg {
  width: 18px;
  height: 18px;
  fill: var(--c-gold);
}

.motto__item::after {
  content: "·";
  margin-left: 14px;
  color: var(--c-gold);
}

.motto__item:last-child::after {
  display: none;
}

/* ============================================================
   首页：夏日新品
   ============================================================ */
.season-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.season-card {
  position: relative;
  overflow: hidden;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.season-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

.season-card__visual {
  position: relative;
  display: grid;
  place-items: center;
  height: 220px;
  background:
    radial-gradient(circle at 50% 30%, var(--c-brand-pale) 0, transparent 68%),
    var(--c-paper-2);
  overflow: hidden;
}

.season-card__tag {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 4px 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-brown);
  background: var(--c-gold-soft);
  border: 1px solid var(--c-gold);
  border-radius: 999px;
}

.season-card__body {
  padding: 22px 24px 26px;
}

.season-card__cat {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-brand);
}

.season-card__name {
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 600;
  margin: 6px 0 8px;
}

.season-card__desc {
  font-size: 14px;
  color: var(--c-ink-soft);
  line-height: 1.7;
}

.season-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
}

.season-card__price {
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--c-brown);
}

.season-card__price small {
  font-size: 13px;
  color: var(--c-ink-faint);
  margin-left: 2px;
}

.season-card__more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--c-brand-deep);
  font-weight: 500;
}

.season-card__more svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s var(--ease);
}

.season-card__more:hover svg {
  transform: translateX(3px);
}

/* ============================================================
   首页：关于我们（参考图中部棕色图文区）
   ============================================================ */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  align-items: center;
  gap: 56px;
}

.about-split__art {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  aspect-ratio: 4 / 3;
  background:
    linear-gradient(160deg, var(--c-brand-deep), var(--c-brand) 55%, var(--c-brand-soft));
}

.about-split__art svg {
  width: 100%;
  height: 100%;
}

.about-split__badge {
  position: absolute;
  left: 22px;
  bottom: 22px;
  padding: 12px 18px;
  background: rgba(248, 241, 226, 0.92);
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
}

.about-split__badge b {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--c-brown);
}

.about-split__badge span {
  display: block;
  font-size: 12px;
  color: var(--c-ink-soft);
}

.about-split__body {
  padding-left: 12px;
}

.about-split__list {
  margin-top: 24px;
  display: grid;
  gap: 16px;
}

.about-split__item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.about-split__item svg {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  fill: var(--c-brand);
  margin-top: 4px;
}

.about-split__item h4 {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
}

.about-split__item p {
  font-size: 14px;
  color: var(--c-ink-soft);
}

/* ============================================================
   首页：产品中心网格
   ============================================================ */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

.product-card__visual {
  position: relative;
  display: grid;
  place-items: center;
  padding: 30px 0 10px;
  height: 250px;
  background:
    radial-gradient(circle at 50% 36%, rgba(172, 208, 176, 0.35) 0, transparent 68%),
    var(--c-paper-2);
}

.product-card__visual svg {
  width: 150px;
  height: auto;
}

.product-card__tag {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 4px 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-brown);
  background: var(--c-gold-soft);
  border: 1px solid var(--c-gold);
  border-radius: 999px;
  z-index: 2;
}

.product-card__body {
  padding: 22px 24px 26px;
}

.product-card__cat {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-brand);
}

.product-card__name {
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 600;
  margin: 6px 0 8px;
}

.product-card__desc {
  font-size: 14px;
  color: var(--c-ink-soft);
  line-height: 1.7;
}

.product-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
}

.product-card__price {
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--c-brown);
}

.product-card__price small {
  font-size: 13px;
  color: var(--c-ink-faint);
}

.product-card__more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--c-brand-deep);
  font-weight: 500;
}

.product-card__more svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s var(--ease);
}

.product-card__more:hover svg {
  transform: translateX(3px);
}

/* ============================================================
   首页：成分与科技
   ============================================================ */
.ingredient-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}

.ingredient-art svg {
  width: 100%;
  max-width: 360px;
  margin: 0 auto;
}

.ingredient-list {
  margin-top: 28px;
  display: grid;
  gap: 14px;
}

.ingredient-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}

.ingredient-item__no {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--c-gold);
  border: 1px solid var(--c-gold);
  border-radius: 50%;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
}

.ingredient-item h4 {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 600;
}

.ingredient-item p {
  font-size: 13px;
  color: var(--c-ink-soft);
}

.ingredient-item__pct {
  margin-left: auto;
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--c-brand-deep);
}

/* ============================================================
   首页：新闻中心 & 案例
   ============================================================ */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.news-card__thumb {
  height: 170px;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 50% 40%, rgba(214, 232, 214, 0.6) 0, transparent 70%),
    var(--c-paper-2);
}

.news-card__thumb svg {
  width: 90px;
  height: 90px;
}

.news-card__body {
  padding: 20px 22px 24px;
}

.news-card__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--c-ink-faint);
}

.news-card__meta b {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--c-brand);
  letter-spacing: 0.1em;
}

.news-card__title {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  margin: 10px 0 8px;
  line-height: 1.5;
}

.news-card__desc {
  font-size: 13.5px;
  color: var(--c-ink-soft);
}

/* ============================================================
   新闻中心页面
   ============================================================ */
.news-cat-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 40px;
}

.news-cat-bar__label {
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--c-brown-soft);
  margin-right: 4px;
}

.news-cat {
  padding: 8px 18px;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--c-ink-soft);
  border: 1px solid var(--c-line);
  border-radius: 999px;
  background: var(--c-surface);
  transition: all 0.25s var(--ease);
}

.news-cat:hover {
  border-color: var(--c-brand);
  color: var(--c-brand-deep);
}

.news-cat.is-active {
  color: #f8f1e2;
  background: var(--c-brown-2);
  border-color: var(--c-brown-2);
}

/* 精选头条 */
.news-feature {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  overflow: hidden;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: 48px;
}

.news-feature__visual {
  display: grid;
  place-items: center;
  min-height: 320px;
  background:
    radial-gradient(circle at 50% 42%, rgba(214, 232, 214, 0.55) 0, transparent 70%),
    linear-gradient(160deg, var(--c-brand-pale), var(--c-paper-2));
}

.news-feature__visual svg {
  width: 180px;
  height: 180px;
}

.news-feature__body {
  padding: 40px 42px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.news-feature__badge {
  align-self: flex-start;
  padding: 4px 14px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-brown);
  background: var(--c-gold-soft);
  border: 1px solid var(--c-gold);
  border-radius: 999px;
  margin-bottom: 16px;
}

.news-feature__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--c-ink-faint);
  margin-top: 14px;
}

.news-feature__meta b {
  font-family: var(--font-serif);
  color: var(--c-brand);
  letter-spacing: 0.1em;
}

.news-feature__title {
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.6vw, 32px);
  font-weight: 700;
  line-height: 1.4;
  margin: 14px 0 12px;
}

.news-feature__desc {
  color: var(--c-ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.news-feature__more {
  align-self: flex-start;
  margin-top: 22px;
}

/* 新闻列表（含分类筛选的卡片） */
.news-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-list .news-card__thumb {
  height: 200px;
}

.news-list .news-card__title {
  font-size: 19px;
}

.news-list__empty {
  grid-column: 1 / -1;
  padding: 48px;
  text-align: center;
  color: var(--c-ink-faint);
  background: var(--c-surface);
  border: 1px dashed var(--c-line);
  border-radius: var(--radius-lg);
  display: none;
}

.news-list__empty.is-visible {
  display: block;
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 48px;
}

.pagination a,
.pagination span {
  display: grid;
  place-items: center;
  min-width: 44px;
  height: 44px;
  padding: 0 10px;
  font-family: var(--font-serif);
  font-size: 15px;
  color: var(--c-ink-soft);
  border: 1px solid var(--c-line);
  border-radius: 10px;
  background: var(--c-surface);
  transition: all 0.25s var(--ease);
}

.pagination a:hover {
  border-color: var(--c-brand);
  color: var(--c-brand-deep);
}

.pagination a.is-active,
.pagination span.is-active {
  color: #f8f1e2;
  background: var(--c-brown-2);
  border-color: var(--c-brown-2);
}

/* ============================================================
   CTA 横幅
   ============================================================ */
.cta-banner {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 48px 52px;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(120deg, var(--c-brown-2), var(--c-brown));
  color: #f2e7cb;
  box-shadow: var(--shadow-md);
}

.cta-banner::before {
  content: "";
  position: absolute;
  right: 40px;
  top: -40px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(192, 154, 88, 0.35) 0, transparent 70%);
}

.cta-banner h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.cta-banner p {
  margin-top: 10px;
  color: #c9b98f;
  max-width: 560px;
}

.cta-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  position: relative;
  z-index: 1;
}

/* ============================================================
   内页：页头横幅
   ============================================================ */
.page-hero {
  position: relative;
  overflow: hidden;
  padding: 84px 0 70px;
  background:
    radial-gradient(circle at 82% 20%, rgba(214, 232, 214, 0.55) 0, transparent 36%),
    radial-gradient(circle at 10% 80%, rgba(192, 154, 88, 0.14) 0, transparent 32%),
    var(--c-paper);
}

.page-hero__path {
  font-family: var(--font-sans);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-ink-faint);
}

.page-hero__title {
  margin-top: 14px;
  font-family: var(--font-serif);
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-hero__title small {
  display: block;
  font-size: 13px;
  letter-spacing: 0.34em;
  color: var(--c-brown-soft);
  margin-bottom: 10px;
}

.page-hero__desc {
  margin-top: 16px;
  max-width: 640px;
  color: var(--c-ink-soft);
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--c-ink-faint);
}

.breadcrumb a {
  color: var(--c-brown-soft);
  transition: color 0.25s var(--ease);
}

.breadcrumb a:hover {
  color: var(--c-brand-deep);
}

.breadcrumb svg {
  width: 15px;
  height: 15px;
  fill: var(--c-gold);
}

/* ---------- 产品筛选 ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 36px;
  padding: 16px 18px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.filter-bar__label {
  font-size: 14px;
  color: var(--c-ink-soft);
  margin-right: 2px;
}

.filter-btn {
  padding: 8px 18px;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--c-ink-soft);
  border: 1px solid var(--c-line);
  border-radius: 999px;
  background: var(--c-surface);
  transition: all 0.25s var(--ease);
}

.filter-btn:hover {
  border-color: var(--c-brand);
  color: var(--c-brand-deep);
}

.filter-btn.is-active {
  color: #f8f1e2;
  background: var(--c-brown-2);
  border-color: var(--c-brown-2);
}

.product-grid__empty {
  margin-top: 32px;
  padding: 40px;
  text-align: center;
  color: var(--c-ink-faint);
  background: var(--c-surface);
  border: 1px dashed var(--c-line);
  border-radius: var(--radius-lg);
  display: none;
}

.product-grid__empty.is-visible {
  display: block;
}

/* ============================================================
   品牌故事页
   ============================================================ */
.section--brand {
  background:
    linear-gradient(160deg, var(--c-brown-2), var(--c-brown));
  color: #e7dabb;
}

.section--brand .section-title {
  color: #f2e7cb;
}

.section--brand .section-title em {
  color: var(--c-gold-soft);
}

.section--brand .section-desc {
  color: #c9b98f;
}

.section--brand .section-eyebrow {
  color: var(--c-gold-soft);
}

.story-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  align-items: center;
  gap: 56px;
}

.story-layout--reverse {
  direction: rtl;
}

.story-layout--reverse > * {
  direction: ltr;
}

.story-layout__visual {
  display: grid;
  place-items: center;
  min-height: 300px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 50% 40%, rgba(214, 232, 214, 0.6) 0, transparent 70%),
    var(--c-paper-2);
  border: 1px solid var(--c-line);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.story-layout__visual svg {
  width: 100%;
  max-width: 360px;
}

.story-layout__text p {
  color: var(--c-ink-soft);
  margin-bottom: 16px;
}

.story-layout__text .section-title {
  margin-bottom: 16px;
}

.story-layout__text .hero__cta {
  margin-top: 26px;
}

/* 数据 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.stat-card {
  padding: 32px 20px;
  text-align: center;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.stat-card strong {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(30px, 3.4vw, 44px);
  font-weight: 700;
  color: var(--c-brand-deep);
  letter-spacing: 0.02em;
}

.stat-card strong i {
  font-style: normal;
  font-size: 0.5em;
  margin-left: 2px;
}

.stat-card span {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  color: var(--c-ink-soft);
}

/* 时间轴 */
.timeline {
  position: relative;
  max-width: 840px;
  margin: 0 auto;
  padding-left: 24px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(var(--c-gold), var(--c-brand-soft));
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding: 0 0 34px 34px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--c-surface);
  border: 3px solid var(--c-brand);
}

.timeline-item__year {
  font-family: var(--font-serif);
  font-size: 15px;
  letter-spacing: 0.14em;
  color: var(--c-gold);
  margin-bottom: 6px;
}

.timeline-item h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.timeline-item > p:last-child {
  color: var(--c-ink-soft);
  font-size: 15px;
}

/* 价值观 */
.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.value-card {
  padding: 34px 26px;
  background: rgba(248, 241, 226, 0.06);
  border: 1px solid rgba(232, 217, 184, 0.18);
  border-radius: var(--radius-lg);
  transition: transform 0.4s var(--ease), background 0.4s var(--ease);
}

.value-card:hover {
  transform: translateY(-6px);
  background: rgba(248, 241, 226, 0.12);
}

.value-card svg {
  width: 34px;
  height: 34px;
  fill: var(--c-gold);
  margin-bottom: 16px;
}

.value-card h3 {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  color: #f2e7cb;
  margin-bottom: 10px;
}

.value-card p {
  font-size: 14px;
  color: #c9b98f;
  line-height: 1.7;
}

/* ============================================================
   联系我们页
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 40px;
  align-items: start;
}

.contact-info {
  display: grid;
  gap: 18px;
}

.contact-card {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 24px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.contact-card__icon {
  flex: 0 0 auto;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--c-brand-pale);
}

.contact-card__icon svg {
  width: 26px;
  height: 26px;
  fill: var(--c-brand-deep);
}

.contact-card h3 {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 6px;
}

.contact-card p {
  font-size: 14px;
  color: var(--c-ink-soft);
  line-height: 1.7;
}

.contact-card a {
  color: var(--c-brand-deep);
  font-weight: 500;
}

.contact-card a:hover {
  color: var(--c-brown);
}

/* 表单 */
.contact-form-wrap {
  padding: 32px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}

.form-group {
  margin-bottom: 18px;
}

.form-row .form-group {
  margin-bottom: 0;
}

.form-group label {
  display: block;
  font-size: 14px;
  margin-bottom: 8px;
  color: var(--c-ink);
  font-weight: 500;
}

.form-group label em {
  color: var(--c-danger);
  font-style: normal;
}

.form-control {
  width: 100%;
  padding: 12px 14px;
  font-family: inherit;
  font-size: 15px;
  color: var(--c-ink);
  background: var(--c-paper);
  border: 1px solid var(--c-line);
  border-radius: 10px;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.form-control:focus {
  outline: none;
  border-color: var(--c-brand);
  box-shadow: 0 0 0 3px rgba(76, 107, 80, 0.15);
}

.form-control.is-invalid {
  border-color: var(--c-danger);
}

.form-group.is-error .form-control {
  border-color: var(--c-danger);
}

.form-group.is-error .form-hint {
  display: block;
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

.form-hint {
  display: none;
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--c-danger);
}

.form-hint.is-visible {
  display: block;
}

.form-privacy {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13.5px;
  color: var(--c-ink-soft);
  margin: 6px 0 22px;
  cursor: pointer;
}

.form-privacy input {
  margin-top: 4px;
  accent-color: var(--c-brand);
}

.form-privacy.is-error {
  color: var(--c-danger);
}

.form-privacy.is-error input {
  outline: 2px solid var(--c-danger);
  outline-offset: 1px;
  border-radius: 3px;
}

.form-success {
  display: none;
  text-align: center;
  padding: 48px 16px;
}

.form-success.is-visible {
  display: block;
}

.form-success svg {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  fill: var(--c-brand);
}

.form-success h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  margin-bottom: 12px;
}

.form-success p {
  color: var(--c-ink-soft);
}

/* 合作流程 */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.process-card {
  position: relative;
  padding: 32px 26px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.process-card__no {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 16px;
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--c-brand-deep);
  border: 1px solid var(--c-brand);
  border-radius: 50%;
}

.process-card h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.process-card p {
  font-size: 14px;
  color: var(--c-ink-soft);
  line-height: 1.7;
}

/* FAQ */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

.faq-item {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.faq-item__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 500;
  text-align: left;
  color: var(--c-ink);
}

.faq-item__q svg {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  fill: var(--c-brand);
  transition: transform 0.3s var(--ease);
}

.faq-item.is-open .faq-item__q svg {
  transform: rotate(45deg);
}

.faq-item__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s var(--ease);
}

.faq-item.is-open .faq-item__a {
  max-height: 320px;
}

.faq-item__a p {
  padding: 0 24px 22px;
  color: var(--c-ink-soft);
  font-size: 15px;
  line-height: 1.8;
  border-top: 1px dashed var(--c-line);
}

/* ============================================================
   返回顶部
   ============================================================ */
.back-top {
  position: fixed;
  right: 26px;
  bottom: 26px;
  z-index: 60;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--c-brown-2);
  color: #f2e7cb;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
}

.back-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-top:hover {
  background: var(--c-brand-deep);
}

.back-top svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* ============================================================
   滚动显现动画
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

.reveal-delay-1 {
  transition-delay: 0.1s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

.reveal-delay-3 {
  transition-delay: 0.3s;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 992px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 12px;
    min-height: auto;
    padding-top: 40px;
    padding-bottom: 60px;
  }

  .hero__copy {
    text-align: center;
  }

  .hero__copy .hero__subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__cta,
  .hero__meta {
    justify-content: center;
  }

  .hero__visual {
    min-height: 380px;
  }

  .about-split,
  .ingredient-layout,
  .story-layout,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .about-split__body {
    padding-left: 0;
  }

  .season-strip,
  .product-grid,
  .news-grid,
  .news-list,
  .stats-grid,
  .value-grid,
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .news-feature {
    grid-template-columns: 1fr;
  }

  .news-feature__visual {
    min-height: 240px;
  }

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

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

  .nav-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    inset: 0;
    top: calc(var(--topbar-h) + var(--header-h));
    z-index: 49;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 22px;
    background: var(--c-brown);
    transform: translateX(100%);
    transition: transform 0.35s var(--ease);
  }

  .nav.is-open {
    transform: translateX(0);
  }

  .nav a {
    padding: 14px 16px;
    font-size: 16px;
    border-bottom: 1px solid rgba(232, 217, 184, 0.12);
  }

  .nav a.is-active::after {
    display: none;
  }

  .header__actions .btn--sm {
    display: none;
  }

  .season-strip,
  .product-grid,
  .news-grid,
  .news-list,
  .stats-grid,
  .value-grid,
  .process-grid,
  .form-row {
    grid-template-columns: 1fr;
  }

  .news-feature__body {
    padding: 28px 26px;
  }

  .cta-banner {
    flex-direction: column;
    align-items: flex-start;
    padding: 34px 28px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 560px) {
  .container {
    padding: 0 18px;
  }

  .hero__calligraph {
    font-size: 110px;
  }

  .topbar__left {
    display: none;
  }

  .topbar__inner {
    justify-content: center;
  }
}