/* ===== RESET ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
button{font-family:inherit}

/* ===== VARIABLES — 暖纸色 + 品牌金 + 工业结构 + Sage 辅助 ===== */
:root{
  --color-bg-primary:#FEFDF8;
  --color-bg-secondary:#F8F5ED;
  --color-primary:#C9A962;
  --color-primary-hover:#D4A853;
  --color-structure:#D6D1C7;
  --color-accent:#7A9E7E;
  --color-text:#2C2C2C;
  --color-text-muted:#6B6B6B;
  --color-cta:#b8860b;

  --color-white:#ffffff;
  --color-deep:#2a2826;
  --color-deep-mid:#3f3c38;
  --color-border:color-mix(in srgb,var(--color-structure) 50%,transparent);
  --color-tag:var(--color-accent);
  --color-button-bg:var(--color-cta);
  --color-button-text:var(--color-white);
  --gradient-hero:linear-gradient(165deg,#FEFDF8 0%,#ffffff 45%,#F8F5ED 100%);
}
/* 字体：typography-system.css */
body{color:var(--color-text);background:var(--color-bg-primary)}
/* .container → layout-system.css */
.icon{width:var(--icon-md);height:var(--icon-md);stroke:currentColor;fill:none;display:inline-block;vertical-align:middle}
.icon--sm{width:var(--icon-sm);height:var(--icon-sm)}
.icon--lg{width:var(--icon-lg);height:var(--icon-lg)}

/* ===== BUTTON ===== */
.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 16px;background-color:var(--color-button-bg);color:var(--color-button-text);font-size:var(--text-sm);font-weight:600;border:none;cursor:pointer;transition:background .25s,transform .15s;letter-spacing:.02em}
.btn:hover{background:color-mix(in srgb,var(--color-cta) 78%,#000000);transform:translateY(-1px)}
.btn--accent{background:var(--color-accent);color:var(--color-white)}.btn--accent:hover{background:color-mix(in srgb,var(--color-accent) 82%,#000000)}
.btn--outline{background:transparent;border:1.5px solid currentColor;color:var(--color-white)}.btn--outline:hover{background:rgba(255,255,255,.08)}
.btn--outline-dark{background:transparent;border:1.5px solid var(--color-text);color:var(--color-text)}.btn--outline-dark:hover{background:var(--color-text);color:var(--color-white)}
.btn--outline-primary{background:transparent;border:1.5px solid var(--color-primary);color:var(--color-text)}.btn--outline-primary:hover{background:var(--color-bg-secondary);border-color:var(--color-primary-hover);color:var(--color-text)}
.btn--lg{padding:14px 28px;font-size:var(--text-base)}

/* HEADER → header.css */

/* ===== PAGE HERO（暖纸底 + 品牌金光晕 + 轻微 sage） ===== */
.page-hero{position:relative;padding:72px 0 80px;background:var(--gradient-hero);overflow:hidden}
.page-hero__media{position:absolute;inset:0;z-index:0;pointer-events:none}
.page-hero__media picture,.page-hero__bg-image{display:block;width:100%;height:100%}
.page-hero__bg-image{object-fit:cover}
.page-hero__bg{position:absolute;inset:0;z-index:1;pointer-events:none;background:radial-gradient(ellipse 72% 52% at 90% 8%,rgba(201,169,98,.18) 0%,transparent 55%),radial-gradient(ellipse 42% 38% at 6% 92%,rgba(122,158,126,.1) 0%,transparent 50%),linear-gradient(180deg,rgba(254,253,248,.72) 0%,rgba(248,245,237,.78) 100%)}
.page-hero__grain{position:absolute;inset:0;z-index:1;opacity:.035;pointer-events:none;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.page-hero .container{position:relative;z-index:2}
.page-hero__eyebrow{display:inline-flex;align-items:center;gap:8px;padding:5px 14px;background:color-mix(in srgb,var(--color-primary) 14%,transparent);border:1px solid color-mix(in srgb,var(--color-primary) 28%,transparent);font-size:var(--text-xs);font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:#1C2430;margin-bottom:14px}
.page-hero__title{font-family:var(--font-display);font-size:clamp(28px,4.5vw,52px);font-weight:700;line-height:1.12;color:#1C2430;margin-bottom:18px;max-width:620px}
.page-hero__title em{font-style:italic;color:#C8A24A}
.page-hero__desc{font-size:var(--text-lg);line-height:1.7;color:rgba(28,36,48,0.78);max-width:520px;padding:10px 14px;background:linear-gradient(90deg,rgba(255,255,255,0.85) 0%,rgba(255,255,255,0.55) 40%,rgba(255,255,255,0.15) 100%)}

/* ===== SECTION COMMON ===== */
.section{padding:88px 0}
.section--gray{background:var(--color-bg-secondary)}
.section-header{margin-bottom:48px}
.section-eyebrow{font-size:var(--text-xs);font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--color-primary);margin-bottom:10px}
.section-heading{font-family:var(--font-display);font-size:clamp(24px,3.5vw,var(--text-3xl));font-weight:700;line-height:1.15;color:var(--color-text)}
.section-desc{font-size:var(--text-md);color:var(--color-text-muted);max-width:520px;margin-top:12px;line-height:1.65}

/* ===== 1 BRAND STORY + VIDEO ===== */
.story-layout{display:grid;grid-template-columns:1fr;gap:48px;align-items:start}
.story-text p{font-size:var(--text-base);color:var(--color-text-muted);line-height:1.75;margin-bottom:16px}
.story-text p:last-child{margin-bottom:0}
.story-text strong{color:var(--color-text);font-weight:600}

/* 右侧栏：宽度与栅格列一致，16:9 自适应 */
.story-video{width:100%;min-width:0}
.story-video__inner{position:relative;width:100%;aspect-ratio:16/9;border-radius:8px;overflow:hidden;background:var(--color-deep);border:1px solid var(--color-border);box-shadow:0 8px 28px rgba(0,0,0,.06)}
.story-video__iframe{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}

@media(min-width:1024px){.story-layout{grid-template-columns:1fr 1fr}}

/* ===== 2 MISSION & VISION ===== */
.mv-grid{display:grid;grid-template-columns:1fr;gap:24px}
.mv-card{padding:40px 32px;position:relative;overflow:hidden}
.mv-card--mission{background:var(--color-deep);color:var(--color-white)}
.mv-card--vision{background:var(--color-white);color:var(--color-text);border:1px solid var(--color-border);box-shadow:0 1px 0 rgba(255,255,255,.85) inset}
.mv-card--values{background:var(--color-white);color:var(--color-text);border:1px solid color-mix(in srgb,var(--color-structure) 70%,transparent);box-shadow:0 0 0 1px color-mix(in srgb,var(--color-primary) 22%,transparent)}
.mv-card__label{font-size:var(--text-xs);font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin-bottom:14px;opacity:.6}
.mv-card--values .mv-card__label{color:var(--color-accent);opacity:.9}
.mv-card--mission .mv-card__label{color:var(--color-primary);opacity:.95}
.mv-card__title{font-family:var(--font-display);font-size:var(--text-2xl);font-weight:500;color:#b48a3c;line-height:1.25;margin-bottom:14px}
.mv-card__text{font-size:var(--text-sm);line-height:1.7;opacity:.75}
.mv-card--values .mv-card__text{color:var(--color-text-muted);opacity:1}
@media(min-width:768px){.mv-grid{grid-template-columns:repeat(3,1fr)}}

/* ===== 3 FACTORY & SCALE ===== */
.factory-split{display:grid;grid-template-columns:1fr;gap:40px;align-items:start}
.factory-split__col{min-width:0}
.factory-split__header{margin-bottom:28px}
.factory-split__desc{max-width:none}
.factory-cap-list{display:grid;grid-template-columns:1fr 1fr;gap:10px 28px;margin:0;padding:0;font-size:var(--text-sm);color:var(--color-text-muted);line-height:1.55}
.factory-cap-list li{position:relative;padding-left:18px}
.factory-cap-list li::before{content:'';position:absolute;left:0;top:.55em;width:6px;height:6px;border-radius:50%;background:var(--color-primary)}
@media(min-width:1024px){.factory-split{grid-template-columns:40% 60%;gap:clamp(24px,4vw,56px)}}

.factory-carousel{position:relative;width:80%;margin-left:auto;margin-right:auto;display:flex;flex-direction:column;gap:12px}
.factory-carousel__viewport{position:relative;width:100%;aspect-ratio:16/9;border-radius:8px;overflow:hidden;background:linear-gradient(160deg,#ebe4d4,#f8f5ed);border:1px solid var(--color-border);box-shadow:0 8px 28px rgba(0,0,0,.06)}
.factory-carousel__slide{position:absolute;inset:0;margin:0;opacity:0;visibility:hidden;transition:opacity .45s ease,visibility .45s;pointer-events:none}
.factory-carousel__slide.is-active{opacity:1;visibility:visible;z-index:1;pointer-events:auto}
.factory-carousel__slide img{width:100%;height:100%;object-fit:cover;display:block}
.factory-carousel__thumbs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;padding:0}
.factory-carousel__thumb{position:relative;width:100%;aspect-ratio:16/9;padding:0;border:2px solid var(--color-border);border-radius:6px;overflow:hidden;cursor:pointer;background:var(--color-deep);transition:border-color .2s,box-shadow .2s,opacity .2s;opacity:.88}
.factory-carousel__thumb:hover{opacity:1;border-color:color-mix(in srgb,var(--color-primary) 55%,transparent)}
.factory-carousel__thumb:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}
.factory-carousel__thumb.is-active{opacity:1;border-color:var(--color-primary);box-shadow:0 0 0 1px color-mix(in srgb,var(--color-primary) 35%,transparent)}
.factory-carousel__thumb img{width:100%;height:100%;object-fit:cover;display:block;pointer-events:none}

.stats-row{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:48px}
.stat-card{padding:24px 20px;text-align:center;background:var(--color-white);border:1px solid var(--color-border)}
.stat-card__num{font-family:var(--font-display);font-size:var(--text-2xl);font-weight:700;color:var(--color-text);line-height:1.1}
.stat-card__label{font-size:var(--text-xs);color:var(--color-text-muted);margin-top:4px}
@media(min-width:768px){.stats-row{grid-template-columns:repeat(4,1fr)}}

/* ===== 4 CERTIFICATIONS ===== */
.cert-grid{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}
.cert-badge{padding:20px 28px;background:var(--color-white);border:1px solid var(--color-border);text-align:center;min-width:120px;transition:border-color .3s,box-shadow .3s}
.cert-badge:hover{border-color:var(--color-primary);box-shadow:0 4px 16px rgba(0,0,0,.04)}
.cert-badge__name{font-size:var(--text-lg);font-weight:700;color:var(--color-text);margin-bottom:2px}
.cert-badge__desc{font-size:var(--text-xs);color:var(--color-text-muted)}

/* ===== FINAL CTA ===== */
.final-cta{padding:80px 0;background:var(--color-bg-secondary);text-align:center;border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border)}
.final-cta__title{font-family:var(--font-display);font-size:clamp(24px,4vw,40px);font-weight:700;color:var(--color-text);margin-bottom:14px;line-height:1.2}
.final-cta__desc{font-size:var(--text-md);color:var(--color-text-muted);max-width:480px;margin:0 auto 32px;line-height:1.65}
.final-cta__actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* FOOTER → footer.css */

.reveal{opacity:0;transform:translateY(28px);transition:opacity .65s ease,transform .65s ease}
.reveal.is-visible{opacity:1;transform:translateY(0)}