/*
Theme Name: SharkNinja Style
Theme URI: https://example.com/sharkninja-style
Author: Custom Theme
Author URI: https://example.com
Description: 借鉴 SharkNinja 设计风格的现代化高端家用产品 WordPress 主题。具备品牌英雄区、产品展示网格、多品牌切换、创新展示等模块，所有内容均可在"自定义器"中修改，无需写代码。
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.6
Requires PHP: 7.4
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: sharkninja-style
Tags: e-commerce, business, portfolio, custom-colors, custom-logo, custom-menu, featured-images, full-width-template, theme-options, threaded-comments, translation-ready
*/

/* ============================================
   1. CSS 变量 — 所有颜色/字体可在 customizer 改
   ============================================ */
:root {
  --sn-color-bg: #ffffff;
  --sn-color-bg-soft: #f5f5f5;
  --sn-color-bg-dark: #0a0a0a;
  --sn-color-text: #111111;
  --sn-color-text-soft: #555555;
  --sn-color-text-inverse: #ffffff;
  --sn-color-accent: #e63946;     /* Shark 红 */
  --sn-color-accent-2: #1d1d1d;   /* Ninja 黑 */
  --sn-color-border: #e5e5e5;

  --sn-font-display: "Helvetica Neue", "Arial Black", sans-serif;
  --sn-font-body: "Helvetica", "Arial", sans-serif;

  --sn-radius: 4px;
  --sn-radius-lg: 12px;
  --sn-shadow-sm: 0 2px 8px rgba(0,0,0,.06);
  --sn-shadow-md: 0 8px 30px rgba(0,0,0,.08);
  --sn-shadow-lg: 0 20px 60px rgba(0,0,0,.12);

  --sn-container: 1400px;
  --sn-gutter: 24px;

  --sn-transition: 0.3s cubic-bezier(.2,.8,.2,1);
}

/* ============================================
   2. 重置与基础排版
   ============================================ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sn-font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--sn-color-text);
  background: var(--sn-color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, video { max-width: 100%; height: auto; display: block; }
a { color: var(--sn-color-text); text-decoration: none; transition: color var(--sn-transition); }
a:hover { color: var(--sn-color-accent); }
h1, h2, h3, h4, h5, h6 {
  font-family: var(--sn-font-display);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 0.6em;
}
h1 { font-size: clamp(2.5rem, 6vw, 5.5rem); }
h2 { font-size: clamp(2rem, 4.5vw, 3.75rem); }
h3 { font-size: clamp(1.5rem, 2.5vw, 2.25rem); }
p  { margin: 0 0 1em; }

.container {
  max-width: var(--sn-container);
  margin: 0 auto;
  padding: 0 var(--sn-gutter);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border: 2px solid var(--sn-color-text);
  background: var(--sn-color-text);
  color: var(--sn-color-text-inverse);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  border-radius: var(--sn-radius);
  cursor: pointer;
  transition: all var(--sn-transition);
}
.btn:hover { background: var(--sn-color-accent); border-color: var(--sn-color-accent); color: #fff; transform: translateY(-2px); }
.btn--outline { background: transparent; color: var(--sn-color-text); }
.btn--outline:hover { background: var(--sn-color-text); color: var(--sn-color-text-inverse); }
.btn--light { background: #fff; color: var(--sn-color-text); border-color: #fff; }
.btn--light:hover { background: var(--sn-color-accent); border-color: var(--sn-color-accent); color: #fff; }

/* ============================================
   3. 顶部公告条
   ============================================ */
.sn-announcement {
  background: var(--sn-color-bg-dark);
  color: var(--sn-color-text-inverse);
  text-align: center;
  font-size: 0.85rem;
  padding: 10px 16px;
  letter-spacing: 0.05em;
}
.sn-announcement a { color: #fff; text-decoration: underline; }

/* ============================================
   4. Header / 导航
   ============================================ */
.sn-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--sn-color-bg);
  border-bottom: 1px solid var(--sn-color-border);
  backdrop-filter: blur(12px);
}
.sn-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0;
}
.sn-header__logo {
  font-family: var(--sn-font-display);
  font-weight: 900;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  color: var(--sn-color-text);
  text-transform: uppercase;
}
.sn-header__logo span { color: var(--sn-color-accent); }
.sn-header__logo img { max-height: 40px; }

.sn-nav { display: flex; gap: 32px; align-items: center; }
.sn-nav__list { list-style: none; display: flex; gap: 32px; margin: 0; padding: 0; }
.sn-nav__list a {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  position: relative;
}
.sn-nav__list a::after {
  content: ''; position: absolute; left: 0; bottom: -6px;
  width: 0; height: 2px; background: var(--sn-color-accent);
  transition: width var(--sn-transition);
}
.sn-nav__list a:hover::after { width: 100%; }

.sn-header__actions { display: flex; gap: 16px; align-items: center; }
.sn-header__icon {
  width: 24px; height: 24px;
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
}
.sn-header__icon svg { width: 22px; height: 22px; }

.sn-menu-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.sn-menu-toggle span { display: block; width: 24px; height: 2px; background: var(--sn-color-text); margin: 5px 0; transition: all var(--sn-transition); }

/* ============================================
   5. Hero 英雄区
   ============================================ */
.sn-hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  background: var(--sn-color-bg-dark);
  color: var(--sn-color-text-inverse);
  overflow: hidden;
}
.sn-hero__bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0.7;
}
.sn-hero__bg::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,.7) 0%, rgba(0,0,0,.3) 50%, rgba(0,0,0,.6) 100%);
}
.sn-hero__content {
  position: relative; z-index: 2;
  max-width: 760px;
  padding: 80px 0;
}
.sn-hero__eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--sn-color-accent);
  margin-bottom: 20px;
  padding: 6px 14px;
  border: 1px solid var(--sn-color-accent);
  border-radius: 100px;
}
.sn-hero__title {
  font-size: clamp(3rem, 7vw, 6.5rem);
  font-weight: 900;
  margin-bottom: 24px;
  text-shadow: 0 2px 20px rgba(0,0,0,.3);
}
.sn-hero__subtitle {
  font-size: clamp(1.1rem, 1.5vw, 1.35rem);
  max-width: 560px;
  margin-bottom: 36px;
  opacity: 0.92;
}
.sn-hero__cta { display: flex; gap: 16px; flex-wrap: wrap; }

/* ============================================
   6. 品牌切换 (Shark / Ninja)
   ============================================ */
.sn-brands {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  min-height: 520px;
}
.sn-brand-card {
  position: relative;
  display: flex; align-items: flex-end;
  padding: 60px;
  overflow: hidden;
  background-size: cover; background-position: center;
  color: #fff;
  transition: flex var(--sn-transition);
  text-decoration: none;
}
.sn-brand-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(0,0,0,.85) 100%);
  transition: background var(--sn-transition);
}
.sn-brand-card:hover::before {
  background: linear-gradient(180deg, rgba(0,0,0,.2) 0%, rgba(0,0,0,.85) 100%);
}
.sn-brand-card__inner { position: relative; z-index: 2; }
.sn-brand-card__name {
  font-size: clamp(2.5rem, 4vw, 4rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}
.sn-brand-card__tagline {
  font-size: 1rem;
  opacity: 0.9;
  margin-bottom: 24px;
  max-width: 380px;
}
.sn-brand-card__link {
  color: #fff;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  border-bottom: 2px solid #fff;
  padding-bottom: 4px;
}

/* ============================================
   7. 产品类目网格
   ============================================ */
.sn-section {
  padding: 100px 0;
}
.sn-section--soft { background: var(--sn-color-bg-soft); }
.sn-section--dark { background: var(--sn-color-bg-dark); color: var(--sn-color-text-inverse); }
.sn-section__head {
  display: flex; justify-content: space-between; align-items: flex-end;
  flex-wrap: wrap; gap: 24px;
  margin-bottom: 56px;
}
.sn-section__title { margin: 0; max-width: 720px; }
.sn-section__sub {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--sn-color-accent);
  font-weight: 700;
  margin-bottom: 12px;
}
.sn-section__lead { max-width: 520px; color: var(--sn-color-text-soft); }

.sn-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.sn-category {
  position: relative;
  aspect-ratio: 4/5;
  overflow: hidden;
  border-radius: var(--sn-radius-lg);
  background: var(--sn-color-bg-soft);
  cursor: pointer;
}
.sn-category__img {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  transition: transform 0.6s cubic-bezier(.2,.8,.2,1);
}
.sn-category:hover .sn-category__img { transform: scale(1.06); }
.sn-category__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,.8) 100%);
}
.sn-category__content {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 28px;
  color: #fff;
}
.sn-category__name {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 0 0 6px;
  text-transform: uppercase;
}
.sn-category__count {
  font-size: 0.85rem;
  opacity: 0.85;
  letter-spacing: 0.05em;
}

/* ============================================
   8. 创新故事区 (并排图文)
   ============================================ */
.sn-story {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 80px;
  align-items: center;
}
.sn-story--reverse { grid-template-columns: 1fr 1.1fr; }
.sn-story--reverse .sn-story__media { order: 2; }
.sn-story__media {
  border-radius: var(--sn-radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  background-size: cover; background-position: center;
  box-shadow: var(--sn-shadow-lg);
}
.sn-story__title { margin-bottom: 24px; }
.sn-story__text {
  font-size: 1.05rem;
  color: var(--sn-color-text-soft);
  margin-bottom: 32px;
}

/* ============================================
   9. 数据统计
   ============================================ */
.sn-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
  text-align: center;
}
.sn-stat__num {
  font-family: var(--sn-font-display);
  font-size: clamp(3rem, 5vw, 4.5rem);
  font-weight: 900;
  line-height: 1;
  color: var(--sn-color-accent);
  margin-bottom: 12px;
  letter-spacing: -0.03em;
}
.sn-stat__label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 600;
  opacity: 0.9;
}

/* ============================================
   10. 新闻卡片
   ============================================ */
.sn-news {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}
.sn-news__card {
  background: var(--sn-color-bg);
  border-radius: var(--sn-radius-lg);
  overflow: hidden;
  transition: transform var(--sn-transition), box-shadow var(--sn-transition);
}
.sn-news__card:hover {
  transform: translateY(-6px);
  box-shadow: var(--sn-shadow-md);
}
.sn-news__img {
  aspect-ratio: 16/10;
  background-size: cover; background-position: center;
  background-color: var(--sn-color-bg-soft);
}
.sn-news__body { padding: 28px; }
.sn-news__date {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--sn-color-accent);
  font-weight: 700;
  margin-bottom: 10px;
}
.sn-news__title {
  font-size: 1.25rem;
  font-weight: 800;
  margin: 0 0 12px;
  line-height: 1.3;
}
.sn-news__excerpt {
  color: var(--sn-color-text-soft);
  font-size: 0.95rem;
  margin: 0;
}

/* ============================================
   11. CTA 横幅
   ============================================ */
.sn-cta {
  background: var(--sn-color-bg-dark);
  color: var(--sn-color-text-inverse);
  text-align: center;
  padding: 100px 24px;
  background-size: cover; background-position: center;
  position: relative;
}
.sn-cta::before {
  content: '';
  position: absolute; inset: 0;
  background: rgba(0,0,0,.55);
}
.sn-cta__inner { position: relative; z-index: 2; max-width: 720px; margin: 0 auto; }
.sn-cta h2 { color: #fff; }
.sn-cta p { font-size: 1.1rem; opacity: 0.9; margin-bottom: 32px; }

/* ============================================
   12. Footer
   ============================================ */
.sn-footer {
  background: var(--sn-color-bg-dark);
  color: rgba(255,255,255,.85);
  padding: 80px 0 32px;
}
.sn-footer__top {
  display: grid;
  grid-template-columns: 1.5fr 3fr;
  gap: 60px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.sn-footer__brand h3 {
  color: #fff;
  font-size: 1.5rem;
  margin-bottom: 12px;
}
.sn-footer__brand p { font-size: 0.95rem; opacity: 0.7; max-width: 320px; }
.sn-footer__cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 32px;
}
.sn-footer__col h4 {
  color: #fff;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 18px;
}
.sn-footer__col ul { list-style: none; padding: 0; margin: 0; }
.sn-footer__col li { margin-bottom: 10px; }
.sn-footer__col a { color: rgba(255,255,255,.7); font-size: 0.92rem; }
.sn-footer__col a:hover { color: #fff; }
.sn-footer__bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap;
  gap: 16px;
  padding-top: 32px;
  font-size: 0.85rem;
  opacity: 0.6;
}

/* ============================================
   13. 响应式
   ============================================ */
@media (max-width: 1024px) {
  .sn-story, .sn-story--reverse {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .sn-story--reverse .sn-story__media { order: -1; }
  .sn-footer__top { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .sn-nav__list { display: none; }
  .sn-menu-toggle { display: block; }
  .sn-section { padding: 64px 0; }
  .sn-section__head { flex-direction: column; align-items: flex-start; }
  .sn-brands { grid-template-columns: 1fr; }
  .sn-brand-card { padding: 40px 28px; min-height: 360px; }
  .sn-hero__content { padding: 60px 0; }
}

/* ============================================
   14. 文章页 / 通用内容
   ============================================ */
.sn-content {
  max-width: 760px;
  margin: 80px auto;
  padding: 0 var(--sn-gutter);
}
.sn-content h1, .sn-content h2 { margin-top: 1.5em; }
.sn-content blockquote {
  border-left: 4px solid var(--sn-color-accent);
  padding: 16px 24px;
  margin: 24px 0;
  font-style: italic;
  background: var(--sn-color-bg-soft);
}

/* WordPress 默认样式兼容 */
.alignleft  { float: left;  margin: 0 24px 16px 0; }
.alignright { float: right; margin: 0 0 16px 24px; }
.aligncenter{ display: block; margin: 0 auto 16px; }
.wp-caption { max-width: 100%; }
.screen-reader-text {
  position: absolute !important;
  clip: rect(1px, 1px, 1px, 1px); height: 1px; width: 1px; overflow: hidden;
}

/* 动画进入 */
.sn-fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(.2,.8,.2,1), transform 0.8s cubic-bezier(.2,.8,.2,1);
}
.sn-fade-in.is-visible { opacity: 1; transform: translateY(0); }